雷达信号处理的matlab仿真.pdf

沈阳理工大学学士学位论文 摘 要 现代雷达系统日益变的复杂，难以简单直观的进行分析，必须借助计算机来完成对 系统的各项功能和性能的仿真。针对现代雷达信号处理的主要方式，运用数字信号处理 理论和 Matlab 软件研究雷达信号处理的仿真问题，提出了一个仿真模型。该模型可以 完成雷达信号的仿真、热噪声与杂波的产生和雷达系统中信号的动态处理过程。用 Matlab 对某脉冲压缩雷达信号处理系统进行了仿真，得到了雷达系统中各个处理点上 的具体信号形式，既包含幅度信息，又包含相位信息，该模型能较好地满足对雷达信号 处理的仿真要求，显示了用 Matlab仿真雷达信号处理系统的方便、快捷的优雷达点。 本文讨论的是雷达信号处理部分， 并结合雷达处理系统实例来说明 MATLAB 在雷达 信号处理机系统仿真中的应用。 关键词 ：雷达信号处理；正交解调；脉冲压缩；回波积累；恒虚警处理 I 沈阳理工大学学士学位论文 Abstract Modern radar systems become increasingly complex and difficult to simple intuitive analysis, we must rely on computer systems to complete the functionality and performance of the simulation The simulation of radar signal processing is an important part of the simulation of radar system. This paper introduces a method of the simulation of radar signal processing based on Matlab, including the simulation ofradar echo and clutter, and researches the simulation method of important technologies in the radar signal processing, including quadrature sampling, pulse compression, echo accumulation and CFAR detector. The work inthis paper can overcome the disadvantages such as difficulty and lengthiness and show the convenience and simplicity of the simulation of radar signal processing based on MATLAB. In this paper, is part of the radar signal processing and radar processing systems with examples to illustrate the radar signal processor MATLAB simulation of. Keywords: signal processing; quadrature sampling; pulsed compression; echo accumulation II 沈阳理工大学学士学位论文 目 录 1 绪论 1 1.1 雷达信号处理的背景 1