一种降低脉冲压缩雷达中强回波信号幅度的方法  

Method for Reducing Magnitude of Strong Echo in Pulse Compression Radar

作　　者：杨丽[1] 杨辉[1] 黄强辉[1] 张绘[1] 

机构地区：[1]南京长江电子信息产业集团有限公司,南京210037

出　　处：《电子工程》2009年第1期1-4,共4页

摘　　要：脉冲压缩体制雷达的强回波信号经过脉压处理后存在一定的距离副瓣，会降低邻近小目标的检测性能。由于线性调频信号的脉压结果模值随采样时刻变化有一定的规律，因此本文以线性调频信号作为雷达发射信号，根据脉压结果的最大值与相邻单元的模值比值的变化曲线，提出一种降低强回波信号脉压结果幅度的方法，并对实测数据进行了仿真，证明了该方法的可行性。After pulse compression, the range sidelobe exists in strong echo signals in pulse compression radar, which can reduce detection performance of small adjacent targets. Since the modular of pulse compression result of LFM （Linear Frequency Modulated） signals varies along with sampling times regularly, so in this article, LFM signals are used as radar transmission signals. An algorithm which can reduce pulse compression magnitude is introduced in this paper based on the plot of maximum of pulse compression result and modular of adjacent unit. The feasibility of this algorithm is proved according to simulation of real data.

关 键 词：脉冲压缩 强回波 距离副瓣 采样时刻 实测数据 

分 类 号：TN958.3[电子电信—信号与信息处理] TP342.1[电子电信—信息与通信工程]