Squinted-looking SAR Seeker System Design

Along with development of military technology and change of battlefield environment,requirement for battlefield environment adaptability and precision attack ability of missile weapon system gets higher.Especially to complex battlefield ground building,such as airdrome garage,bridge,a command post,along with time tenderness target such as missile launch vehicle and silo in all-weather/all-day battle condition,the precision attack ability requirement is increasingly enhanced.Target has well adaptability,squinted-looking SAR adding monopulse homing guidance may be realize,adopting SAR system.SAR seeker is becoming radar seeker development direction.Duo to SAR seeker usually working in dive trajectory,becouse of high speed,big squinted-looking angle,lateral and portrait nonuniformity moving,scene unceasing varying relative to radar angle of down-view and angle of declination,SAR imaging is very difficult,so requirement to SAR seeker system design is very high.First the paper introduces SAR seeker principle,analyses the squinted-looking SAR image algorithm and SAR image resolution,hen analyses the influences of system’s error and drift on SAR image.on this condition,analyses and designs system,mainly analyses and designs antenna,receiver,transmitter and signal Processor.In the end,the paper does analysis and Simulation of SAR image and target tracking.