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调频步进信号的参数设计及高分辨合成算法
Parameters Design of the Chirp-stepped Frequency Signal and High Resolution Synthesis Algorithm
【摘要】 文章结合工程应用给出调频步进信号参数在满足通用设计原则Δf/Ba≤1的情况下,采样频率、跳频间隔之比fs/Δf为整数、非整数时对应的高分辨距离像合成算法。fs/Δf为整数时采用计算量较小的频域拼接法,非整数时采用时域滤波算法。仿真、实测数据验证了两种合成高分辨距离像算法的有效性。
【Abstract】 Combining the engineering application,this paper presents the corresponding high resolution range image synthesis algorithm to which the ratio of sampling frequency and frequency hopping interval fs/Δf is integer and non integer when the chirp-stepped frequency signal parameters meet the universal design principle Δf/Ba≤1.When fs/Δf is the integer,the frequency domain mosaic with less calculation amount is used,and the time domain filtering algorithm is used when it is non-integer.The simulated and measured data verify effectiveness of these two algorithms for synthesizing high resolution range image.
- 【文献出处】 火控雷达技术 ,Fire Control Radar Technology , 编辑部邮箱 ,2008年04期
- 【分类号】TN911.7
- 【被引频次】4
- 【下载频次】118