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线性调频信号仿真及其特性分析
引用本文:孟泽,孙合敏,董礼.线性调频信号仿真及其特性分析[J].舰船电子工程,2009,29(8).
作者姓名:孟泽  孙合敏  董礼
作者单位:1. 空军雷达学院研究生管理大队,武汉,430019
2. 空军雷达学院陆基预警监视装备系,武汉,430019
3. 驻一二五厂军事代表室,北京,100028
摘    要:线性调频(LFM)信号是雷达信号处理系统中应用较为广泛的大时宽带宽积信号。针对线性调频信号进行了时频特性分析,然后运用模糊函数对该信号的性能进行分析,得出该信号具有良好的距离分辨率和速度分辨率,最后对线性调频信号的脉冲压缩过程和结果进行了讨论,并得到了雷达目标回波信号经过脉冲压缩后的仿真结果。

关 键 词:线性调频信号  匹配滤波  脉冲压缩  旁辫抑制  加权处理  

Characteristic Analysis and Simulation of LFM Signal
Meng Ze,Sun Hemin,Dong Li.Characteristic Analysis and Simulation of LFM Signal[J].Ship Electronic Engineering,2009,29(8).
Authors:Meng Ze  Sun Hemin  Dong Li
Institution:Department of Graduate Management;AFRA1;Department of Land Based Early Warning and Surveillance Equipment;AFRA2;Military Representative Office of 125 Factory3
Abstract:The LFM signal used in the radar signal processing system has large product of time width and band width.It introduces characteristic of LFM signal for time-frequency field,and characteristic of LFM signal is analyzed by using Ambiguity function.It shows that LFM signal can provide favorable range resolution and velocity resolution.Finally,the results and processes of pulse compression of LFM signal are discussed,and simulation results are provided after pulse compression of radar echo of targets.
Keywords:linear frequency modulation signal  matching filer  pulse compression  sideband suppression  weighted processing  
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