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Research of real-time ranging radar based on FPGA technology
Author(s): 
Pages: 152-153,157
Year: Issue:  12
Journal: ELECTRONIC MEASUREMENT TECHNOLOGY

Keyword:  雷达现场可编程门阵列测距脉冲积累;
Abstract: 本文分析了脉冲积累对雷达回波信号信噪比的改善能力,并在此基础上研究设计了以FPGA为核心的数据采集和处理系统.FPGA控制ADC对中频回波信号进行高速数字采样,同时使用Altera的IP工具利用FPGA集成的大量高速RAM和逻辑单元设计了读写速度达200 MHz的高速双端口RAM,对采样数据进行多次数字积累,N个脉冲发射完成即可完成N次脉冲积累.该方案提高了回波信号信噪比,改善了雷达的测距性能,实时完成了目标距离的测量.通过仿真验证了方案的可行性.
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