MATLAB的雷达信号仿真系统研究
本次毕业设计基于MATLAB开发环境，利用GUIDE工具实现了一个雷达信号仿真系统。系统包含四个子仿真软件：雷达目标RCS仿真实验软件、雷达距离方程仿真实验软件、雷达信号波形分析仿真实验软件及雷达回波成份分析仿真实验软件。本系统具有良好的用户界面，可根据用户的需求进行子软件间的选择与切换，且功能完善丰富、能够独立运行，可为高校开展雷达实验课程提供软件支持。
关键词 雷达信号 MATLAB 仿真软件 辅助教学
毕业论文设计说明书外文摘要
Title MATLAB-Based Radar Signal Simulation System
Abstract
Computer simulation of radar system possesses advantages of economy, convenience, and flexibility.Hence,the process of the design and evaluation of radar system needs to rely more on computer simulation.Among the numerous kinds of simulation software, MATLAB simulation platform, with its powerful computing capability and kits which are suitable for the radar design and simulation, has been widely used by radar designers.
The graduation project is based on the MATLAB development environment, using the GUIDE tool to achieve a radar signal simulation system.The system consists of four sub-simulation software: radar target RCS simulation software, radar range equation simulation software, radar signal waveform analysis simulation software and radar echo component analysis simulation software. The system has a good user interface,and four sub-software can be selected and switched under the demand of users. The function of the system is both rich and complete,and the system can run independently,which is helpful for providing software support for the radar experiment courses in colleges.
Keywords Radar signals MATLAB Simulation software Assisted Instruction
目 次
1 绪论 1
1.1 课题的研究背景和意义 1
1.2 国内外雷达仿真技术的研究现状 2
1.3 本文的研究内容及组织结构 3
2 雷达目标RCS仿真实验软件的设计 5
2.1 RCS的定义 5
2.2 RCS与视角的关系 5
2.3 RCS与频率的关系 7
2.4 简单物体的RCS 8
2.4.1 椭球体RCS 9
2.4.2 圆形平板RCS 10
2.4.3 截椎体RCS 11
2.4.4 圆柱体RCS 14
2.4.5 矩形平板RCS 16
2.4.6 三角形平板RCS 19
2.5 本章小结 20
3 雷达距离方程仿真实验软件的设计 21
3.1 雷达距离方程的基本原理 21
3.2 雷达距离方程与参数间关系仿真 22
3.3 本章小结 29
4 雷达信号波形分析仿真实验软件的设计 30
4.1 单载频矩形脉冲信号 30
4.1.1 基本概念 30
4.1.2 时频域波形及模糊函数仿真 31
4.2 线性调频脉冲（LFM）信号 33
4.2.1 基本概念 33
4.2.2 时频域波形及模糊函数仿真 35
4.3 相参脉冲串信号 38