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介绍了具备方位向大扫描角能力的高分辨率机载合成孔径雷达(SAR)系统,重点研究了综合电子设备技术,包括宽带信号产生、多子频带接收、宽带脉冲信号初相高稳定度技术等,并对不同子带的相位幅度特性以及脉冲压缩特性进行了分析.机载飞行试验及成像处理得到的高质量SAR图像,验证了宽带发射多子带接收的综合电子设备设计技术和技术性能.“,”A high resolution airborne synthetic aperture radar (SAR) of the big azimuth scanning angle is introduced and the technique of synthetic electronic instrument is studied deeply in allusion to high bandwidth generating,multi-subbands receiving,high original phase stability of wideband pulse signal and so on.Later,anticipative phase-amplitude characteristics and pulse compression characteristics are analysed,the design essential and technical capability of synthetic electronic instrument of high bandwidth transmitting and multi-subbands receiving have been validated by airbome flight experiment and high quality SAR image after imaging processing.