摘要
Abstract
With the increasing requirement of integration of digital beam forming(DBF)radar,the architecture of split signal processing system is far from meeting the requirement.Therefore,a cascaded multi-channel real-time array signal processing system is proposed.First,on the same array signal processing board,24-channel analog-to-digital converter(ADC),field-programmable gate array(FPGA),digital signal processor(DSP)and other chips are used to realize the functions of multi-channel ADC sampling,down-conversion,beam control,digital beam forming and signal processing.And then,different number of array signal processing boards can be cascaded by high-speed GTH(Gigabit transceiver)bus,system synchronization,system calibration and multi-stage pipelining,which can be applied to DBF radars of different scales.关键词
数字波束形成/多级流水/系统同步/系统校准/FPGA/DSPKey words
DBF/multi-stage pipelining/system synchronization/system calibration/FPGA/DSP分类
电子信息工程
