Sea-Based X-Band Radar (SBX) for Missile Defense
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Sea-Based X-Band Radar (SBX) for Missile Defense SBX — Sensor for the Ground-Based Midcourse Defense System Key Features and Benefits The Sea-Based X-Band (SBX) Radar or XBR) is being Raytheon developed the XBR radar is a midcourse fire con- designed, built and tested from lessons learned on earlier g State-of-the-art technology trol sensor for the Ground- by Raytheon. “Family of Radars” programs, combined with comprehensive Based Midcourse Defense including the Ground-Based XBR is a mechanically-slewed software functionality result (GMD) component of the Radar – Prototype (GBR-P), phased array sensor that uses in the world’s most capable Ballistic Missile Defense located at Kwajalein in the Sea-Based X-Band radar the most advanced electronic System. Installed on a Republic of the Marshall components and software. Its g Optimized for threat acquisi- re-locatable semi-submersible Islands, and the Terminal high output power, along with tion, tracking, discrimination platform for siting flexibility, High Altitude Area Defense sophisticated signal detection and hit assessment the radar performs the critical (THAAD) radar. Through algorithms, allow the radar to functions of cued acquisition, continued design and pro- g Self-propelled, semi-sub- accomplish its mission against target tracking, discrimination ducibility enhancements many mersible platform affords a host of very small targets and outstanding stability during and engagement hit assess- of the radar components have at very long ranges. To protect elevated sea-state conditions ment. By providing the radar realized significant perform- the radar from the anticipated with a sea-borne mobility, this ance improvements while g Relocation capability maximizes harsh environments, an air- sensor can be deployed to undergoing reductions in siting flexibility and operational supported radome was devel- support either GMD system both cost and risk. One utility oped using a unique synthetic testing or to provide radar excellent example of this g laminated fabric and innova- Discrimination capabilities coverage for possible threat evolutionary development support battle management tive assembly techniques. missile launches throughout process is the Gallium decision processes the world. The SBX homeport The radar is mounted on Arsenide Transmit/Receive g Substantial commonality is Adak, Alaska, which is a self-propelled, semi-sub- (T/R) module, which is the with other Raytheon X-Band located approximately mersible platform that has key component of Raytheon’s radar programs midway along the Aleutian been modified and outfitted X-Band radar family. Through Islands chain. for the application by Boeing. three rigorous design iterations With a main deck area larger this microwave module has The GMD System, as well as than a football field, the SBX become known as “Best-of- the SBX component, are being is self-sufficient and contains Breed,” and with total usage developed under the direction an infrastructure that will exceeding 175,000, the realized of the Boeing Company, the support deployment for cost savings to our radar prime contractor. The extended periods of time. customers has been significant. radar (known as X-Band Sea-Based X-Band Radar (SBX) for Missile Defense g SBX-1 will support midcourse Early Warning Satellite acquisition, track, discrimination Kill Vehicle and hit assessment g Performs precision track and midcourse discrimination Discrimination Intercept Debris Track g Provides discriminated reentry Acquisition Hit Assessment vehicle to GMD Fire Control (GFC) Ground-Based g Provides data on all target Search Interceptor (GBI) Early Warning Radar Launch complexes g Can be optimally positioned to In-Flight maximize threat coverage Interceptor Communications System (IFICS) GMD Fire Aegis Sensor Control Node Threat Launch Sea-Based X-Band Radar Forward-Based Radar (SBX-1) Notional Engagement Specifications Physical Aperture 384 m2 Active Aperture 248 m2 GaAs Transmit/Receive Modules >45,000 Phase/Mechanical Beam Steering Azimuth Coverage ±270º Elevation Coverage 2º-90º Rotating Weight 2,400 Tons Software Lines of Code 652,000 GBR-P at Reagan Test Site Guy Shields 978.858.5246 phone 978.858.9414 fax [email protected] Raytheon Company Integrated Defense Systems 50 Apple Hill Drive Tewksbury, Massachusetts 01876 USA Best of Breed T/R Module XBR Array Face Inside of Radome www.raytheon.com Approved for public release. Distribution is unlimited. 06-MDA-1667 (12 JUN 06) Copyright © 2003–2006 Raytheon Company. All rights reserved. Printed in the U.S.A. RTSC MSPTS 6/06 10K 4121736.