| 激光多普勒测速雷达信号处理的FPGA实现 |
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| 引用本文： | 崔桂华,洪光烈,凌元.激光多普勒测速雷达信号处理的FPGA实现[J].红外,2013,34(4):18-23. |
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| 作者姓名： | 崔桂华 洪光烈 凌元 |
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| 作者单位： | 中国科学院上海技术物理研究所空间主动光电系统技术实验室,上海,200083 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)项目(2009CB724004) |
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| 摘 要： | 激光多普勒测速雷达信号处理由于数据量大、实时性强等特点,对信号处理单元的要求较高。现场可编程门阵列(FPGA)具有高速、并行性等优点,可以满足测速雷达的需求。介绍了利用单片FPGA实现激光多普勒测速雷达信号处理的过程,详细说明了数据的缓存、干扰频率的滤波、2倍降采样、快速傅里叶变换(Fast Fourier Transform,FFT)和脉冲累积等步骤的FPGA实现,最后分析了模块的性能并给出了测试结果。
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| 关 键 词： | 现场可编程门阵列 激光多普勒测速雷达 信号处理 |
| 收稿时间： | 3/15/2013 7:45:13 PM |
| 修稿时间： | 3/15/2013 7:45:13 PM |
Implementation of Laser Doppler Velocity Radar Signal Processing Based on FPGA |
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| Cui Guihu,Hong Guanglie and Ling Yuan.Implementation of Laser Doppler Velocity Radar Signal Processing Based on FPGA[J].Infrared,2013,34(4):18-23. |
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| Authors: | Cui Guihu Hong Guanglie and Ling Yuan |
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| Affiliation: | Shanghai Institute of Technical Physics, Chinese Academy of Sciences,Shanghai Institute of Technical Physics, Chinese Academy of Sciences,Shanghai Institute of Technical Physics, Chinese Academy of Sciences |
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| Abstract: | Because of large amount of data and real-time characteristics, the processing of the signal of a laser Doppler velocity radar needs a high performance processing module. The Field Programmable Gate Array (FPGA) with advantages of high speed and parallelism can meet this demand. The implementation of signal processing for a laser Doppler velocity radar with a FPGA chip is presented. The data buffer, interference frequency filtering, 2-fold down-sampling, Fast Fourier Transform (FFT) and pulse accumulating etc of the FPGA are described. Finally, the performance of the module is analyzed and its test result is given. |
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| Keywords: | FPGA laser Doppler velocity radar signal processing |
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