摘要
介绍了连续波雷达回波的数学模型,对系统的测速算法做了简要说明,利用抽取来降低采样率,提高了谱的分辨率和雷达测量精度,增加了雷达的作用范围。利用外场实测数据对不同类型目标进行了处理和对比,总结出了各种目标的最佳采样率。
This paper introduces the mathematical models of continuous wave radar echo and the velocity measurement algorithm. By reducing the sampling ratio using extractive method, the resolving ratio of the spectrum and the measuring precision of the radar are improved and the detection range is enhanced. The best sampiing ratio of different targets are concluded from a comparison of the outfield data of various types of targets. The conclusion is of help in the practical engineering applications.
出处
《电子科技》
2007年第5期63-67,共5页
Electronic Science and Technology
关键词
连续波雷达
抽取
变采样
信噪比
continuous wave radar
extractive
changing sample ratio
SNR
