【摘要】 弹载条件下SAR信号处理系统具有机动性大、飞行速度快及空间小等特点,对数据处理速度、存储速度、存储容量、功耗等都具有很高的要求。通过综合分析FPGA与DSP优缺点,提出了一种以FPGA为核心的预处理存储系统。着重介绍了脉冲压缩理论及实现、FLASH读写控制及存储单元阵列等关键问题。更多还原

【Abstract】 The signal processing systems with great maneuverability,high speed and small space for the missile-borne synthetic aperture radars(SARs) need high requirements on the data processing speed,storage speed and capacity,and power consumption.A preprocessing and storage system based on the FPGA is proposed through comprehensively analyzing the advantages and disadvantages between the FPGA and the DSP with emphasis on the key problems such as the theory and implementation of the pulse compression,FLASH R/W control,and storage array.更多还原