美国陆军数字阵列雷达的材料.ppt

Today’s Counterfire Radar Capabilities GIRAFFE BACKGROUND Air defense radar with an added Counterfire mode Countefire performance acceptable for limited target sets Radar LRUs EQ - 36 General Considerations Use of spectrum Size/Weight/Power Q37+ performance in Q36 footprint (90 Degree) Add 360 degree capability “-ilities”, especially: Mobility/Transportability Survivability Reliability/maintainability Endstate The Path Forward Assumptions used in Technology Assessment Objective: To establish a working template to assess various device technologies for a power transmitter used in different system requirements. Solid-state phased array system Output power per element: 25W Mode of operation: CW and Pulsed Final performance can be scaled Estimation of baseplate temperature needed to maintain PA MMIC(s) of different technologies; leading in cooling requirements For a particular technology, overall system DC conversion efficiency and I2R distribution loss also to be considered to assess its advantage; trade-off should be noted Comparison of Technology for S-Band PA DARPA Funded Seeding Efforts at Army Research Lab: Investigate the MicroDoppler signature Theoretical modeling and simulation MicroDoppler detection Noise analysis Study the experimental feasibility of interferoceiver Fiber recirculation loop experiment Technology survey System Design: BACKUP True Correlation Receivers * * * IDGA Sensors Nov 06 (*) * Unclassified 11 OCT 07 . Wittstruck (*) October 11, 2007 U.S. Army . Program Executive Office, Intelligence, Electronic Warfare Sensors Unclassified Army’s Digital Array Radars Dr. Rich Wittstruck richard.wittstruck@us.army.mil AN/TPQ-48(V)2 SOF system derivative fielded on operational needs statement Only mortars: 1-6.5km 360° coverage Range and accuracy improvements in V3 Mortars: 0.75-18km Medium Cannon: 3-14.5km Rockets: 8-24km 90° Coverage Improved Processor On-going Medium Cannon: 3-30km Rockets: 3-50km 90o Coverage RMI Ini