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针对合成孔径雷达(SAR)的微型化发展需求,提出了一种基于Z7的微型SAR实时成像系统。该系统采用高度集成化及模块化设计,将传统的SAR综合处理单元集成在一块微型板卡上实现全部功能,包括信号产生、中频采样、信号处理、数据处理及数据记录功能。在满足总体成像技术指标的前提下,减少了系统设备体积、重量及功耗,实现了微型SAR实时成像技术。该系统经过多个架次的微型无人机试飞验证,取得了令人满意的成像效果。
In order to meet the demand of miniaturization of synthetic aperture radar (SAR), a real-time micro-SAR imaging system based on Z7 is proposed. The system uses a highly integrated and modular design, the traditional integrated SAR processing unit integrated in a micro board to achieve full functionality, including signal generation, IF sampling, signal processing, data processing and data logging capabilities. Under the premise of meeting the requirements of the overall imaging technology, the system reduces the volume, weight and power consumption of the system and realizes the real-time imaging technology of the miniature SAR. The system after multiple shelves of miniature UAV flight test validation, and achieved satisfactory imaging results.