The Proposed US Missile Defense in Europe: Technological Issues
Transcription
The Proposed US Missile Defense in Europe: Technological Issues
Page 1 of 42 MIT Science, Technology, and Global Security Working Group The Proposed US Missile Defense in Europe: Technological Issues Relevant to Policy Theodore A. Postol Professor of Science, Technology, and National Security Policy, Massachusetts Institute of Technology Voice: 617 253-8077; e-mail: [email protected] George N. Lewis Associate Director, Peace Studies Program, Cornell University Voice: 607 255-8914; e-mail: [email protected] American Association for the Advancement of Science Washington, DC August 28, 2007 Major Questions that Need to Be Addressed Major Issues • What Are the Benefits Versus the Costs Associated with the Current Plan to Deploy a Missile Defense in Europe? • Could This Deployment Cause an Avoidable Major Policy Confrontation with Russia at a Time When Russian-US Cooperation is Critical? • Will the System Provide the Promised Performance Benefits? • Are Their Alternative System Configurations that Could “Do the Job” that would Not Be Perceived as a Threat by the Russians? Page 2 of 42 Summary of the Technological Issues Relevant to Policy (1 of 2) • Aegis system interceptors are kinematically able to provide intercept coverage for a missile defense of Europe. • There are as yet unresolved questions about whether the Aegis interceptor Kill Vehicle has adequate acquisition and divert capabilities to reliably find and maneuver to hit Intermediate Range Ballistic Missile (IRBM) warheads. • However, the Missile Defense Agency has made statements that the Aegis can do the job. • Two-Stage Ground-Based Interceptors sited in Poland are kinematically able to provide intercept coverage for most, but not all, of Europe. • The Two-Stage Ground-Based Interceptors are also capable of intercepting Russian ICBMs launched towards targets on the East Coast of the United States. • Missile Defense Agency claims that such intercepts are not possible are inaccurate. • There are still many unresolved engineering and technical problems associated with both the two-stage and three-stage Ground-Based Interceptors. • It is not clear that the unresolved performance uncertainties associated with the Ground-Based Interceptor are less than those that confront Aegis. • Thus, from the perspective of performance uncertainties, Aegis interceptors appear to be as viable a choice for policy makers as Ground-Based Interceptors. Summary of the Technological Issues Relevant to Policy (2 of 2) • The planned radar support for the European missile defense is woefully inadequate. X-band radars are fundamentally not suited for the role of acquisition and surveillance. Lower frequency radars operating at VHF, UHF, or L-Band are all far more suitable for this mission. • The radar acquisition and surveillance problem could probably be solved by using multiple Forward-Based X-Band radars placed strategically between Iran and Europe. These radars would probably only be able to acquire and track cone-shaped ballistic missile warheads at ranges less than 1000 km range. They would, however, be able to track the upper rocket stage that deploys the warhead at greater range. This may make it possible for the radar to cue on upper rocket stages as part of a process aimed at acquiring and tracking the warhead. • The radar acquisition and surveillance problem could also be solved by using the Russian Voronezh Class VHF Early Warning Radar in Armavir, Russia. • Even if the funding for the Missile Defense Program were expanded to a substantial part of the entire Department of Defense budget, the resulting missile defense system would still be fundamentally unreliable, unless it can be demonstrated that the system can tell the differences between simple decoys and warheads. • There is overwhelming evidence that exoatmospheric Missile Defenses are fundamentally vulnerable to exoatmospheric decoys. This near-certain vulnerability has far ranging implications for the viability of exoatmospheric missile defenses and the nation’s security. Congress should consider investigating this serious and fundamental vulnerability. Page 3 of 42 Proposed Elements Of A European Missile Defense • Up to 10 silo-based long-range interceptors located in Eastern Europe (2011-2013) • Re-location of a narrow-beam, midcourse tracking radar currently used in our Pacific test range to central Europe (2011) • Field an acquisition radar focused on the Iranian threat from a forward position to provide detection, cueing, and tracking information (2010-2011) Poland Czech Republic Europe Approved for Public Release 07-MDA-2332 (9 MAR 07) ms-109395A / 030707 18 Locations of Physical Assets Relevant to an Assessment of the Policy Issues New Russian EW Radar Vypolzovo Interceptors EMR Armavir Gabala FBX? Page 4 of 42 Ballistic Missile Trajectories from Iran and Tatischevo, Dombarovskiy, and Vypolzovo, Russia to Washington Washington Ballistic Missile Trajectories from Iran and Tatischevo, Russia to Washington New Russian EW Radar Vypolzovo Interceptors Dombarovskiy Tatischevo EMR Armavir Gabala FBX? Precision Cueing Role Played by the EMR in the Czech Republic? An Integrated Approach To Ballistic Missile Defense Combining different sensors with different weapons expands detection and engagement capabilities DSP In-Flight Updates Ground-Based Interceptor Land-Based Radar Track Track Track Sea-Based Radar C2BMC Approved for Public Release 06-MDA-1439 (16 FEB 06) Precision Cueing Role Played by the EMR in the Czech Republic? Interceptor Site ms-108017A / 021606 8 Reported Demonstrations of How Simple Radar Cueing Information Can Substantially Improve a Missile Defense’s Theoretical Capabilities “With cuing from an Aegis ship and three ships with the Block 1A capability, we can in fact defend our ally Japan and the U.S. forces there. Additionally, if we station a ship off the Hawaiian Islands with a ship forward, we can in fact defend Hawaii. Likewise, we can defend Guam by moving the detection ship forward. We have run many of these scenarios.” Rear Admiral Brad A. Hicks Program Director, Aegis Ballistic Missile Defense December 19, 2005 in a talk at the Marshall Institute Full talk is available at: http://www.marshall.org/article.php?id=363 Why Cueing from the European Midcourse Radar (EMR) Could be of Concern to Russian Military Analysts Reported by several publications: On August 19, 2004, Army Col. Charles Dreissnack, THAAD’s program manager, said at a conference that recent tests of the THAAD’s radar have shown that THAAD will have a “residual” capability against ICBMs. He said: “We weren’t planning to have the ICBM capability,” but the radar is “outperforming what we thought it supposed to do.” He also said that although deployment won’t begin until FY 2009, test assets could be ready to defend Hawaii years earlier. From Marc Selinger, “THAAD displaying ‘residual’ capability against ICBMs,” Aerospace Daily & Defense Report, August 20, 2004. Note: This description implies that THAAD’s NMD capabilities are limited by the radar, not the interceptor. See "Highly Capable Theater Missile Defenses and the ABM Treaty" in Arms Control Today, April 1994. Available on the Web at: http://www.ucsusa.org/global_security/missile_defense/theater-missile-defense-the-abm-treaty.html Page 5 of 42 Interceptors are Modified Ground-Based Interceptors 2 Stage Instead of 3 Stage 30,450 lbs versus 31,500 lbs 47 Feet Long versus 51 Feet The interceptors planned for Poland are nearly identical to the EKV three-stage interceptors based in the U.S. except that they are a two-stage variant that is quicker, lighter, and better suited for the engagement ranges and timelines for Europe. The silos that house the ground-based interceptors have substantially smaller dimensions (e.g., diameter and length) than those used for offensive missiles, such as the U.S. Minuteman III ICBM. Any modification would require extensive, lengthy, and costly changes that would be clearly visible to any observer. The ground-based interceptors are comprised of a booster vehicle and an exoatmospheric kill vehicle (EKV). Upon launch, the booster flies to a projected intercept point and releases the EKV which then uses on-board sensors (with assistance from ground-based assets) to acquire the target ballistic missile. The EKV performs final discrimination and steers itself to collide with the enemy warhead, destroying it by the sheer kinetic force of impact. Future European Missile Site – Size Comparison 4 Relative Sizes and Weights of Candidate European Missile Defense Interceptors 60 Burnout Speed ≈ 8.5 km/sec 50 Burnout Speed ≈ 7.7 km/sec 40 Length (ft) Page 6 of 42 30 Burnout Speed ≈ 4.5 km/sec 20 10 0 2-Stage GBI 3-Stage GBI Navy SM-3 ~30,450 lbs ~31,500 lbs ~3,100 lbs L Page 7 of 42 Relative Sizes and Weights of Missile Defense Interceptors 60 Burnout Speed ≈ 8.5 km/sec Burnout Speed ≈ 7.7 km/sec Nuclear Armed 50 Length (ft) 40 30 Burnout Speed ≈ 4.5 km/sec Nuclear Armed 20 10 0 Iraqi Al-Husayn 15,000 lbs Spartan Sprint 25,000 - 29,000 lbs 7,500 lbs 2-Stage GBI 3-Stage GBI Medium Range Marinized Navy SM-2 Lower Tier THAAD Navy SM-3 ~30,450 lbs ~30,500 lbs ~3,100 lbs --- 1,380 lbs 2,000 lb THAAD Patriot PAC-3 Patriot PAC-2 ~950 lbs 695 lbs 2,000 lbs Location of US 2-Stage and 3-Stage Ground-Based Interceptor Variants at 5 Second Intervals During Powered Flight GBI Powered Flight Profile 500 Locations Every 5 Seconds Altitude (km) 400 300 200 Burnout (143 sec) Third Stage Ignition I t t 8.3 – 8.5 km/sec 100 Burnout (103 sec) 0 800 Second Stage Ignition I t t 7.7 km/sec 700 600 500 400 Range (km) 300 Second Stage Ignition I t t 200 100 0 Page 8 of 42 In March, Director of Missile Defense Agency Tells European Leaders that the Proposed US System Cannot Counter Russian Offensive Missiles Missile Defense For U.S. Allies And Friends Why Poland And The Czech Republic? • U.S. missile defense interceptors in Alaska and California do not provide protection for Europe • Technical analysis shows that Poland and the Czech Republic are the optimal locations for fielding U.S. missile defense assets in Europe - Maximizes defensive coverage of Europe from ballistic missiles launched from the Middle East - Provides redundant coverage for the U.S. against intercontinental-range ballistic missiles Distribution Statement A: Approved for public release; distribution is unlimited • Placing the interceptor field in Poland and the radar in the Czech Republic maximizes the defensive coverage of Europe March 2007 Lt Gen Trey Obering, USAF Director Missile Defense Agency Approved for Public Release 07-MDA-2332 (9 MAR 07) ms-109395A / 030707 Approved for Public Release 07-MDA-2332 (9 MAR 07) U.S. System Cannot Counter Russian Offensive Missiles ms-109395A / 030707 17 Interceptors Cannot Catch Russian Missiles • U.S. missile defense system deployments are directed against rogue nation threats, not advanced Russian missiles To Wa s h in g 800 sec ton D C • A European interceptor site (up to 10 interceptors) would be no match for Russia’s strategic offensive missile force - would be easily overwhelmed 600 sec 400 sec • European interceptor site has no capability to defend U.S. from Russian launches - Not geographically situated in European for this purpose Russian ICBM - Too close Russian launch site to be able to engage intercontinental missiles headed for U.S. - Would result in “tail chase” for interceptors launched from a European site Interceptor • No plan to expand the number of interceptors in Europe - not in our five year budget Time (sec) after Russian ICBM Launch U.S. European Interceptor Site Cannot Affect Russian Strategic Capability • Standing invitation to the Russians to visit U.S. missile defense sites for transparency purposes Approved for Public Release 07-MDA-2332 (9 MAR 07) ms-109395A / 030707 21 Approved for Public Release 07-MDA-2332 (9 MAR 07) ms-109395A / 030707 22 Concerns Expressed by the Russians Engagement With Russia • March 17, 2006 (Washington): Bilateral Defense Commission Meeting. Under Secretary of Defense Edelman and General Mazurkevich, Chief of the Main Directorate for International Cooperation • April 3, 2006 (Moscow): Briefing of Russian officials by U.S. Embassy (Moscow) on DOD decision to resume consultations with Poland regarding the site of U.S. missile defense assets • November 3, 2006 (Moscow): Dr. Cambone, Lt Gen Obering, DASD Green, Russian Minister of Defense Ivanov, Chief of General Staff Gen-Col Baluevskiy, Gen-Col Mazurkevich - Russians did not acknowledge Iran emerging threat as a rationale for deployment of U.S. missile defense assets - Believe Russia is real target - Russians “portrayed” lack of understanding and confusion on technical aspects of a deployed missile program and proposed architecture. U.S. committed to following-up with technical discussions to Russian counterparts • January 29, 2007 (Moscow): Strategic Dialogue Meeting. Under Secretaries Joseph and Deputy Foreign Minister Kislyak - Ambassador re-committed that U.S. will follow-up with technical briefings/explanations regarding U.S. missile deployment • February 9, 2007 (Seville): Secretary Gates and Minister of Defense Ivanov during NATORussia Council Ministerial meeting U.S. Has Offered Future Event Establishing Technical Experts Meeting (Spring 2007) Page 9 of 42 Can the Europe-Based Missile Defense Engage Russian ICBMs and if so Why Does that Matter? Page 10 of 42 Search Coverage of the X-Band Radar Using Electronic Scanning Radar Located in Azerbaijan 120° Azimuth Search 90° Azimuth Search Search Coverage of the X-Band Radar Using Electronic Scanning Radar Located in Czech Republic 120° Azimuth Search 90° Azimuth Search Page 11 of 42 General Obering’s Original Slide Interceptors Cannot Catch Russian Missiles 800 sec 600 sec 400 sec Russian Russian ICBM Interceptor Time (sec) after Russian ICBM Launch U.S. European Interceptor Site Cannot Affect Russian Strategic Capability Approved for Public Release 07-MDA-2332 (9 MAR 07) ms-109395A / 030707 22 Obering’s Slide With MDA Labels Removed Interceptors Cannot Catch Russian Missiles 800 sec 600 sec 400 sec Russian ICBM Vypolzovo 18 SS-25s Moscow Interceptor Time (sec) after Russian ICBM Launch U.S. European Interceptor Site Cannot Affect Russian Strategic Capability Approved for Public Release 07-MDA-2332 (9 MAR 07) ms-109395A / 030707 22 Location of SS-25 Russian ICBM at 5 Second Intervals During Powered Flight SS-25 Powered Flight Profile 500 Locations Every 5 Seconds 400 Altitude (km) Page 12 of 42 300 Burnout (170 sec) 200 Third Stage Ignition I t t 100 0 800 700 600 500 400 300 200 Second Stage Ignition I t t 100 0 Range (km) Obering’s Slide – Distances and Speeds Wrong Interceptors Cannot Catch Russian Missiles 5 to 3.75 km/sec same ratio as 6.4 to 8.5km/sec 800 sec 600 sec 1500 km in 400 sec, 3.75 km/sec ballistic target? Ballistic Missile to DC should take 280 sec, not 400 sec to cover this distance! 400 sec Russian ICBM Vypolzovo 18 SS-25s Moscow 1000 km in 200 sec 5 km/sec Interceptor? Time (sec) after Russian ICBM Launch U.S. European Interceptor Site Cannot Affect Russian Strategic Capability Approved for Public Release 07-MDA-2332 (9 MAR 07) ms-109395A / 030707 22 Page 13 of 42 Actual Timelines for an Engagement Interceptors Cannot Catch Russian Missiles 800 SEC 600 SEC SS-25 Trajectory 1 min 5 min 5 min 400 SEC 4 min 3 min 4 min 2 min 3 min Co ast t as Co GBI Interceptor Russian ICBM 1 min 0 min Pow 2 min ere d re we Po 0 min t Vypolzovo 18 SS-25s Moscow ht lig dF Timelines for 2-Stage GBI Interceptor Flig h Tatischevo Time (sec) after Russian ICBM LaunchDombarovskiy U.S. European Interceptor Site Cannot Affect Russian Strategic Capability Approved for Public Release 07-MDA-2332 (9 MAR 07) This statement is wrong ms-109395A / 030707 22 Engagement Event Timeline for Engagement of SS-25 from Vypolzovo with 2-Stage Missile Defense Interceptor T=500 sec Interceptor and warhead Collide INTERCEPT! T=5 minutes 5 minutes 4 minutes T=4 minutes T=1 minutes T=3 minutes T=2 minutes T=0 minutes Interceptor Launch T=170 sec End of SS-25 Powered Flight, Also Point of Radar Acquisition 3 minutes 2 minutes T=1.7 minutes Interceptor Burnout T=0 minutes Interceptor Launch T=50 sec Infrared Satellite Detection C l t T=0 sec Launch Transient Detection? C l t Page 14 of 42 Misleading MDA Slide Indicating Interceptors Cannot Engage Russian ICBMs Misleading MDA Slide Indicating Interceptors Cannot Engage Russian ICBMs 5 4 4 3 2 3 1 0 2 0 0 min Page 15 of 42 Misleading MDA Slide that Indicates Interceptors Could Never Intercept Russian ICBMs Misleading MDA Slide that Indicates Interceptors Could Never Intercept Russian ICBMs Slide Overstates Exaggerates the ICBMs by 15% and Understates the Speed Interceptors by more thanby30% Slide theSpeed Speedofof ICBMs by 15% and Understates theofSpeed of Interceptors more than 30% Interceptors Cannot Catch Russian Missiles 3500 km • Interceptor launched ≈ 250-300 sec after threat 1,200 sec 3500 km 800 sec Errors in This MDA Chart ICBM Apogee 1,000 sec Interceptor Speed from Slide ≈ 5.4 km/sec Actual Interceptor Speed ≈ 7.7 - 8.3 km/sec ICBM Burnout 600 sec ICBM Ground Travel from Slide ≈ 5.8 km/sec Actual Ground Travel of ICBM ≈ 5.1 km/sec 400 sec 5 4 4 3 2 1 3 0 2 3250 km Moscow 0 0 min 3250 km = 5.4 km/s?? 600 sec Interceptor Time (sec) after Russian ICBM Launch U.S. European Interceptor Site Cannot Affect Russian Strategic Capability Approved for Public Release 07-MDA-2623 (13 JUN 07) ms-109673B / 061407 27 Location of SS-18/19 Russian ICBM at 5 Second Intervals During Powered Flight SS-18/19 Powered Flight Profile 500 Burnout (340sec) Locations Every 5 Seconds Altitude (km) 400 300 200 Second Stage Ignition I t t 100 0 800 700 600 500 400 Range (km) 300 200 100 0 Page 16 of 42 Timelines and Events for Intercepts with Two-Stage Variant of the GBI 6 5 5 4 4 Beginning of Radar Tracking 3 2 3 3 1 2 2 0 2 0 Vypolzovo 1 End of Powered Flight End of Powered Flight 0 Dombarovskiy Tatischevo Earliest Intercept Beginning of Czech Radar Tracking Engagement Event Timeline for Engagement of SS-18/19 from Tatischevo with 2-Stage Missile Defense Interceptor INTERCEPT! T=4.8 minutes T=4 minutes T=3 minutes T=2 minutes T=1 minutes T=5 minutes T=4 minutes 0 minutes T=320 sec End of SS-18 Powered Flight, Also Point of Radar Acquisition T=3 minutes T=0 sec Launch Transient Detection? T=2 minutes Tatischevo T=1.7 minutes Interceptor Burnout T=0 minutes Interceptor Launch T=50 sec Infrared Satellite Detection Engagement Event Timeline for Engagement of SS-18/19 from Dombarovskiy with 2-Stage Missile Defense Interceptor INTERCEPT! T=7 minutes T=7 minutes T=6 minutes T=6 minutes T=5 minutes T=4 minutes T=3 minutes T=2 minutes T=1 minutes 0 minutes T=410 sec Point of Radar Acquisition T=5 minutes T=4 minutes T=320 sec End of SS-18/19 Powered Flight, T=3 minutes T=2 minutes T=0 sec Launch Transient Detection? Dombarovskiy T=1.7 minutes Interceptor Burnout T=50 sec Infrared Satellite Detection T=0 minutes Interceptor Launch Presidential National Security Directive 23 (PNSD-23) Presidential National Security Directive 23 (PNSD-23) Signed by President Bush on December 6, 2002. •PNSD-23 reaffirmed the policy of the Bush administration “to develop and deploy, at the earliest possible date, ballistic missile defenses drawing on the best technologies available.” •The Directive also states that the United States would begin to deploy missile defenses in 2004 “as a starting point for fielding improved and expanded missile defenses later [emphasis added].” •And that the ultimate goal was missile defenses “not only capable of protecting the United States and our deployed forces, but also friends and allies.” •PNSD-23 was preceded in January 2002 by a memorandum from then Secretary of Defense Donald Rumsfeld. The Rumsfeld memo directs the Missile Defense Agency to develop defense systems by first using whatever technology is "available," even if the capabilities produced are limited relative to what the defense must ultimately be able to do. Page 17 of 42 Page 18 of 42 Observation PNSD-23 Appears to be a Mandate for Continued and Unbounded Expansion and Modernization of the Missile Defense System in Europe and Elsewhere. If this is True, PNSD-23 Would Indicate to the Russians that the Current Defense Deployment in Europe is only the Leading Edge of a Much Larger and More Capable Future Deployment. Major Question that Needs to Be Addressed Major Foreign Policy Issue US May Need to Explain to the Russians Why US Interceptors Cannot Engage Russian ICBMs Page 19 of 42 US May Need to Explain to the Russians Why US Interceptors Cannot Engage Russian ICBMs Engagement With Russia • March 17, 2006 (Washington): Bilateral Defense Commission Meeting. Under Secretary of Defense Edelman and General Mazurkevich, Chief of the Main Directorate for International Cooperation • April 3, 2006 (Moscow): Briefing of Russian officials by U.S. Embassy (Moscow) on DOD decision to resume consultations with Poland regarding the site of U.S. missile defense assets • November 3, 2006 (Moscow): Dr. Cambone, Lt Gen Obering, DASD Green, Russian Minister of Defense Ivanov, Chief of General Staff Gen-Col Baluevskiy, Gen-Col Mazurkevich - Russians did not acknowledge Iran emerging threat as a rationale for deployment of U.S. missile defense assets - Believe Russia is real target - Russians “portrayed” lack of understanding and confusion on technical aspects of a deployed missile program and proposed architecture. U.S. committed to following-up with technical discussions to Russian counterparts • January 29, 2007 (Moscow): Strategic Dialogue Meeting. Under Secretaries Joseph and Deputy Foreign Minister Kislyak - Ambassador re-committed that U.S. will follow-up with technical briefings/explanations regarding U.S. missile deployment • February 9, 2007 (Seville): Secretary Gates and Minister of Defense Ivanov during NATORussia Council Ministerial meeting U.S. Has Offered Future Event Establishing Technical Experts Meeting (Spring 2007) Approved for Public Release 07-MDA-2332 (9 MAR 07) ms-109395A / 030707 Major Question Major Issue Is There Another Option to Base Interceptors so they Do Not Pose a Perceived Threat to Russian ICBMs? An alternative way of asking this question is: Could the Aegis System “Do the Job”? 23 Page 20 of 42 Emergency Engagement Capability USS LAKE ERIE First FirstSM-3 SM-3Block BlockIA IAEncanned Encanned 2 Rounds Delivered By 31 AUG 06 2 Rounds Delivered By 31 AUG 06 First FirstSM-3 SM-3Block BlockI’s I’s “Ready For Issue” – November 2004 “Ready ForFleet Fleet Issue” November 11 Rounds Delivered By –August 2006 2004 11 Rounds Delivered By August 2006 USS PORT ROYAL Intercept FTM-10 FTM-10 If Directed, Capability Available Approved for Public Release 06-MDA-1922 (13 SEP 06) ms-108727 / 091406 6 Aegis BMD SM-3 Evolution Plan Block II Block IIA High Divert Variant • 21" 3rd High Velocity Variant Stage • 1-Color Seeker • Pulsed DACS • 2- Color Seeker - Increased IR Acquisition - Improved Discrimination • Block IB Seeker • 21" Propulsion - 2nd & 3rd Stage - Increased Missile Vbo = xx • TDACS - Increased Divert - Lowers AUR Cost Block 2004 Approved for Public Release 06-MDA-1922 (13 SEP 06) • 21" Nosecone • MK 41 VLS Compatible • 21" 2nd Stage ock 2004 Bl Block • Large Diameter KW - Advanced Discrimination Seeker - High Divert DACS • 21" Propulsion - 2nd & 3rd Stage - Increased Missile Vbo = yy • All-Reflective Optics (ARO) • 21" Nosecone • Advanced Signal Processor (ASP) • MK 41 VLS Compatible Block 2008 Funded Since PB06 Block 2010 / 2012 Capability Change From Previous Block • 21" 3rd Stage Block IB • 21" 2nd Stage Block IA Block 2012 / 2014 ms-108727 / 091406 10 Basic Characteristics of the Vertical Launch System Components Basic Characteristics of the Vertical Launch System Components Page 21 of 42 Page 22 of 42 Aegis Engagement Timelines for Defense of UK from the Baltic Sea 3 Minutes 3 4 4 5 5 6 7 5 4 3 2 Interceptor Launched 1 0 Aegis Engagement Timelines for Defense of UK from the Mediterranean Sea 6 5 4 3 5 4 3 Interceptor Launched 2 1 0 Conclusions with Regard to Interceptor Capabilities Assuming systems work as MDA claims: • The current proposed system could engage Russian ICBMs. • Russian ICBMs will be observable by the EMR in the Czech Republic during their bussing operations, allowing for warheads and decoys to be tracked as they are deployed and providing potentially very valuable cueing information to missile defense units in the continental United States. • There are many other alternative deployments that could easily meet the US stated objective of defending against postulated Iranian ICBMs. • Aegis system interceptors are kinematically able to provide intercept coverage for a missile defense of Europe. • Two-Stage Ground-Based Interceptors sited in Poland are kinematically able to provide intercept coverage for most, but not all, of Europe. • The Missile Defense Agency has made statements that the Aegis can do the job, but there are as yet unresolved questions about whether the Aegis interceptor Kill Vehicle has adequate acquisition and divert capabilities to reliably find and maneuver to hit Intermediate Range Ballistic Missile (IRBM) warheads. • There are also many unresolved engineering and technical issues associated with the Two and Three Stage Ground-Based Interceptors and the EKV. • Thus, from the perspective of performance uncertainties, Aegis interceptors appear to be as viable a choice for policy makers as Ground-Based Interceptors. Can the System “Do the Job”? The Complementary Role of Acquisition and Tracking Radars in the Europeand Missile Defense Page 23 of 42 Page 24 of 42 What Has Happened to the Acquisition Radars the US Missile Defense Program? Original System Plans Required that the UEWRs be Used for Acquisition and X-Band Radars be Used for Discrimination! Basic Physics Determining Radar Capabilities Capability of Radar Determined by Average Power Radiated from Antenna Size of the Antenna Radar Cross Section (RCS) of Targets to be Engaged Radar Cross section Reduction This is why Stealth can be effective against previously capable radars RCS of Combat Aircraft ~ 10 m2 RCS ≈ 0.01 – 0.001 m2 2 RCS of Warhead at X-Band ~ 0.01 m Difference is factor of 10,000! Power Area RCS ≈ 1 – 10 m2 Radar Cross Section of Large Round-Nose Warhead Radar Cross Section of Generic Aircraft Page 25 of 42 Page 26 of 42 Phased Array Warning System (PAVE PAWS) UHF Radar Being Used in National Missile Defense System The size of the FBX and its limited average power make it considerably less capably than large lower frequencies radars like the US UEWR and the Russian Voronezh VHF radars for acquiring and and tracking naturally stealthy ballistic missile warheads at long-range. UEWR GreenPine FBX Russian Voronezh Class Third Generation Upgraded VHF Early Warning Radar that is Potentially Usable in a “Light” National Missile Defense System The size of the FBX and its limited average power make it considerably less capably than large lower frequencies radars like the US UEWR and the Russian Voronezh VHF radars for acquiring and and tracking naturally stealthy ballistic missile warheads at long-range. Russian Voronezh VHF Early Warning Radar Arrow GreenPine Missile Defense Radar Forward-Based X-Band Radar (FBX) Cobra Dane L-Band Phased Array Intelligence Radar Being Used in National Missile Defense System GreenPine FBX National Missile Defense Ground-Based Radar Prototype (NMD-GBR-P) X-Band Radar to be Used in National Missile Defense System Page 27 of 42 Page 28 of 42 The Forward-Based X-Band Radar (FMX) Has Limited Acquisition Abilities Against 0.01 m2 Cone-Shaped Warheads at Ranges Greater Than 1000 km 1000 km Range – Dwell Time =0.05 sec; Radar Cross Section = 0.01 m2, S/N = 20, Area Searched at Distance = 4.3 km x 10.3 km 1500 km Range – Dwell Time =0.25 sec; Radar Cross Section = 0.01 m2, S/N = 20, Area Searched at Distance = 6.5 km x 15.5 km The Israeli Green Pine L-Band Missile Defense Radar (1 – 2 GHz) can Acquire and Track a 2 m2 Target at 500 km and a 0.02 m2 Target at 50 km Practical Ranges at Which the FBX Radar can Acquire and Track a 0.01 m2 Cone-Shaped Warhead Practical Ranges at Which the FBX Radar can Acquire and Track a 0.01 m2 Cone-Shaped Warhead 3 4 3 Minutes 5 6 4 6 7 5 FBX 6 6 5 7 4 3 2 1 0 Page 29 of 42 Page 30 of 42 Armavir Acquisition Capability for an FBX Radar in Romania Against a Cone-Shaped Warhead with a 0.01 m2 Radar Cross Section at X-Band 3 4 5 6 6 7 5 FBX Armavir Radar 6 5 4 3 2 1 0 Operating Frequencies of Early Warning and Missile Defense Radars Radar Cross Section of Rounded-Back Cones The operating frequency of Russia’s Early Warning Radars was chosen so that the radar reflectivity of warheads approaching Russia would be as large as possible, thereby making it easier for the radars to detect the approaching warheads at very long range. However, a serious drawback associated with radars operating at these frequencies is that they highly vulnerable to blackout effects from high-altitude nuclear explosions. 0 0 10 10 2 Radar Cross Section (m ) -1 10 -1 2 Radar Cross Section (m ) 10 -2 10 -2 10 -3 10 -3 10 -4 0 100 200 300 400 500 600 700 800 900 1000 10 0 1 2 3 Frequency (MHz) Russian Hen House and Large Phased Arrays US PAVE-PAWS and BMEWS Early Warning / Missile Defense Radars US Upgraded Early Warning / Missile Defense Radars 4 5 6 Frequency (GHz) 7 8 9 10 US Ground-Based X-Band Radar Findings of the Technical Analysis (1 of 2) The Radar Support Requirements for the System are Woefully Inadequate • The planned radar support for the European missile defense is woefully inadequate. X-band radars are fundamentally not suited for the role of acquisition and surveillance. Lower frequency radars operating at VHF, UHF, or L-Band are all far more suitable for this mission. • The radar acquisition and surveillance problem could probably be solved by using multiple Forward-Based X-Band radars placed strategically between Iran and Europe. These radars would probably only be able to acquire and track cone-shaped ballistic missile warheads at ranges less than 1000 km range. They would, however, be able to track the upper rocket stage that deploys the warhead at greater range. This may make it possible for the radar to cue on upper rocket stages as part of a process aimed at acquiring and tracking the warhead. • The radar acquisition and surveillance problem could also be solved by using the Russian Voronezh Class VHF Early Warning Radar in Armavir, Russia. Findings of the Technical Analysis (2 of 2) Assuming systems work as MDA claims: • The current proposed system could engage Russian ICBMs. • Russian ICBMs will be observed during their bussing operations, allowing for warheads and decoys to be tracked as they are deployed. • There are many other alternative deployments that could easily meet the US stated objective of defending against postulated Iranian ICBMs. • The Russian proposal to instead use radars (Russian and US) in Azerbaijan would allow the US to meet its stated objective of defending against postulated Iranian ICBMs without posing a threat to Russian ICBM forces. • A system of equal or greater capability than the one currently being proposed by the US could use radars in Azerbaijan and/or Turkey, with interceptors placed in Albania, Bulgaria, Greece, or Turkey Page 31 of 42 Page 32 of 42 Fundamental Issues that Needs to be Addressed Fundamental Issue that Needs to Be Addressed • Even if the funding for the Missile Defense Program were expanded to a substantial part of the entire Department of Defense budget, the resulting missile defense system would still be fundamentally unreliable, unless it can be demonstrated that the system can tell the differences between simple decoys and warheads. • There is overwhelming evidence that exoatmospheric Missile Defenses are fundamentally vulnerable to exoatmospheric decoys. This near-certain vulnerability has far ranging implications for the viability of exoatmospheric missile defenses and the nation’s security. Congress should consider investigating this serious and fundamental vulnerability. Some Photos of Objects that Could Appear Like Warheads Large Balloon With Reflecting Coating Light Rigid Replica Decoy 2.2 Meter Diameter Balloon With Black Coating Minuteman Inflatable Decoy Balloon With White Coating Minuteman Warhead Conclusions From a Purely Technical Perspective: • There appears to be no credible technical reason that the stated US objective to defend against postulated future Iranian ICBMs could not be fulfilled by other types of deployment configurations. • Recent statements made by the MDA, and numerous past technically misleading and inaccurate statements made by the MDA, would likely cause skepticism and suspicion among Russian military analysts who advise their political leadership. • It is therefore understandable that Russian military analysts might suspect that US motivations are different from those that have been stated. Soviet Capabilities for Strategic Nuclear Conflict, 1983-93 (NIE 11-3/8-83) Soviet Capabilities for Strategic Nuclear Conflict, 1983-93 (NIE 11-3/8-83) Formerly Top Secret Key Judgments of US Intelligence Community in 1983 We have major uncertainties about how well a Soviet ABM system would function, and the degree of protection that future ABM deployments would afford the USSR. Despite our uncertainties about its potential effectiveness, such a deployment would have an important effect on the perceptions, and perhaps the reality, of the US-Soviet strategic nuclear relationship. ●●● widespread Soviet defenses, even if US evaluations indicated they could be overcome by an attacking force, would complicate US attack planning and create major uncertainties about the potential effectiveness of a US strike. Page 33 of 42 Page 34 of 42 Appendix A Radar Range Resolution Capabilities of Different Radars that Might Be Used in Missile Defense Systems Radar Range-Resolution of the Different Missile-Defense Radars 1.5 ~ 2 meter Warhead UHF Radar Range-Resolution Enhanced L-Band Range-Resolution X-Band Range-Resolution Page 35 of 42 Radars Used for Ballistic Missile Defense Radar Type Designation Frequency Wavelength Bandwidth Range Resolution Russian Early Warning Radar VHF 150 2.0 meters ~10 MHz ~10 – 15 meters US Upgraded Early Warnings UHF 430 MHz 0.66 meters ~30 MHz ~4 - 5 meters Cobra Dane L-Band 1,000 MHz 0.30 meters ~200 MHz ~0.75 meters Ground-Based Radar X-Band 10,000 MHz 0.03 meters ~1,000 MHz Number of Elements perUnit Area ∼ Power per Unit Area ~ 5000 Radar CrossSection ∼ W/m2 1 λ2 ~0.15 meters 1 λ2 1 Radar with Comparable Search Capability ∼ 4 4 λ ⎛ 0.66 ⎞ UHF vs X-Band ∼ ⎜ 234,000 = ⎟ ⎝ 0.03 ⎠ Examples of Radar Signals from Warheads C-Band (5Ghz) Radar Signal Against 1.5 Meter Long Warhead 0.0 1.5 3.0 X-Band (10GHz) Radar Signal Against 1.5 Meter Long Warhead 0.0 1.5 3.0 Page 36 of 42 Appendix B X-Band Radar Technology and Radar Performance Estimates Relevant to Assessing Missile Defense System Capabilities Forward Based X-Band Radar Japan Approved for Public Release 07-MDA-2332 (9 MAR 07) ms-109395A / 030707 32 Page 37 of 42 Phased-Array X-Band Radars X-Band Modules • Radar modules are based on GaAs monolithic microwave integrated circuits (MMICs). • Such modules typically produce long pulses with high duty cycles. • X-band radars thus use linear-frequency-modulation pulse compression to get range resolution. • Bandwidth of 1 GHZ, corresponding to 15 cm resolution usually assumed. • Duty cycle appears to be about 0.2. Page 38 of 42 X-Band Module X-Band Module 2.66 inches 1.05 in X-Band Module • About 70,000 first-generation (6-8 w peak power, 1.2-1.6 w average power) modules went to THAAD Dem/Val, 2 THAAD UOES, and the GBR-P radars. THAAD Dem/Val was dismantled for the modules for the GBR-P. • About 60,000 second-generation (10 watt) modules were made and were used for SBX. • Current third-generation (16 watt?) are used in THAAD EMD, THAAD Production, and FBX. • X-band modules are apparently expensive and in short supply. X-Band Modules per Radar • GBR-P: • THAAD/FBX: • SBX: • GBR: • EMR (Czech): 16,896 25,344 45,264 69,632 ~ 22,000 ??? • Current rate of deployment suggests about enough modules are being made each year to deploy one THAAD/FBX. • If so, this may explain why EMR won’t be available until 2011. • Modules are expensive, ~$1,000+ each. Page 39 of 42 Page 40 of 42 X-Band Radars The new X-band radars can be divided into two groups: – – THAAD/FBX (which are the same): transportable, multipurpose (surveillance, tracking) radars -SBX, GBR-P,GBR, EMR. Large, specialized tracking radars. These all have highly “thinned” antennas. Their antennas all can be rotated. Thinned Array Radars • To get a narrow beam, want largest possible antenna. • But filling an antenna the size of GBR-P would require 291,000 modules. • Instead, spread modules much further apart, so only ~17,000 are needed. • This gets a narrow beam, but radar is much less powerful than it superficially might appear. • In particular, P-A is not appropriate figure of merit. Capabilities of Different Phased Array Radars Comparison of Target Acquisition Capabilities of Phased Array Radars Adjusted P-A (w/m2) • GBR-P • EMR • THAAD/FBX • SBX • GBR • FPS-85 • Cobra Dane 105 1.2 x 5.4 x 105 7.0 x 105 1.5 x 106 3.5 x 106 6.9 x 108 2.9 x 108 Sensitivity 74 380 37 2,100 7,700 100,000 100,000 Sensitivity = S/N at 1,000 km for 1 m2 target with 1 msec pulse Adjusted P-A = P * A * Thinning Ratio (0.065 for SBX, GBR) Radar Data and Calculations Courtesy of George Nelson Lewis, Peace Studies Program, Cornell University EMR vs Iran Warhead to West Coast of U.S. • If EMR sensitivity is 380, then a 1 millisecond dwell time, gives a S/N of 0.025 for a 0.01 m2 target at 3,500 km. • Thus to get S/N =20, would require about 4.0 seconds of dwell time. • An ICBM would move several beam widths in this time. • Beam width = 0.03 / 12.5 × 3,500 = 8.4 km Page 41 of 42 Page 42 of 42 Distance of Japan-Based FBX from Postulated ICBM Launch Site 1000 km Technical Characteristics of THAAD X-Band Mobile Ground-Based Radar FBX Radar