摘要
应用时频分析的基本理论和基本方法,分析了不同脉冲宽度、不同脉冲重复频率以及不同采样频率对PD雷达发射信号时频分布特征的影响,研究了不同目标距离、不同目标速度、不同目标加速度以及噪声背景下不同目标反射强度条件下PD雷达目标反射信号的时频分布特征,并使用MATLAB时频分析工具箱对其进行仿真。
Using the basic theory and method of time-frequency analysis, the time-frequency distribution of PD radar transmitted signal effected by different pulse width, different pulse repetition frequency and different simple frequency is analyzed. And then the time-frequency distribution of PD radar received signal effected by different target distance, different target velocity, different target accelerated velocity and different target reflection intensity under noise background is analyzed. Moreover it is emulated by MATLAB time-frequency toolbox.
出处
《现代防御技术》
北大核心
2007年第1期106-109,115,共5页
Modern Defence Technology
关键词
PD雷达
时频分析
雷达信号处理
PD radar
time-frequency analysis
radar signal processing
