"MATLAB仿真雷达信号处理系统的研究与应用"

现代雷达系统变得越来越复杂，难以简单直观地进行分析。为了完成对系统各项功能和性能的仿真，必须借助计算机。本文针对现代雷达信号处理的主要方式，应用数字信号处理理论和Matlab软件，提出了一个雷达信号处理的仿真模型。该模型可完成雷达信号的仿真、热噪声与杂波的产生，以及雷达系统中信号的动态处理过程。通过Matlab对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Matlab在雷达信号处理系统仿真中的方便、快捷优势。本文讨论了雷达信号处理部分，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。 Abstract Modern radar systems become increasingly complex and difficult to analyze simply and intuitively. In order to simulate the various functions and performance of the system, it is necessary to use a computer. This paper proposes a simulation model for radar signal processing based on the main method of modern radar signal processing, using digital signal processing theory and Matlab software. The model can simulate radar signals, generate thermal noise and clutter, and simulate the dynamic signal processing process in radar systems. Through Matlab simulation of a pulse compression radar signal processing system, specific signal forms at various processing points in the radar system were obtained, containing both amplitude and phase information. The model can better meet the simulation requirements for radar signal processing, demonstrating the convenience and efficiency of using Matlab for simulating radar signal processing systems. This paper discusses the radar signal processing part and combines examples of radar processing systems to illustrate the application of MATLAB in the simulation of radar signal processing systems. Keywords: radar signal processing; orthogonal demodulation; pulse compression; echo accumulation; constant false alarm rate processing.