Matlab雷达目标回波模拟仿真+文献综述
本毕业论文基于线性调频脉冲雷达，对雷达回波模拟和处理进行了研究。本文主要工作分为三部分：线性调频连续波雷达系统以及雷达回波模拟介绍、运用Matlab软件仿真回波信号、目标回波信号的产生过程分析。首先，介绍了LFMCW雷达系统的原理和雷达目标回波模拟波形的产生的原理，然后对信号模拟的软件Matlab进行了介绍以及用Matlab仿真出回波信号图像，最后，介绍了利用FPGA对图像中的数据信号进行处理和分析，最后得出目标回波的过程。本文完整地给出了锯齿波线性调频脉冲雷达系统的模拟和处理过程，模拟的雷达回波的数据经过雷达信号处理以及D/A处理后，最终形成回波信号。5752
关键字： LFMCW FPGA 雷达目标回波模拟
Title:Radar target echo simulation
Abstract
Modern radar systems become more complicated, it is difficult to use simple intuitive analysis method for processing, therefore, radar system simulation increasingly get promotion. Radar system simulation method of economic, flexible and convenient, in the radar research field and engineering technology has been widely used.
This article based on linear FM pulse radar, of radar simulation and processing. This paper mainly work is pided into three parts: linear FM continuous wave radar system and radar simulation with Matlab simulation software is introduced, the echo signal, target echo signal generation process analysis. First, this paper introduces the principle of LFMCW radar system and radar target echo simulation of the principle of wave generated, and then the signal of the software Matlab simulation are introduced and Matlab simulation the echo signal images, finally, introduced the use of FPGA in the images of the data to signal processing and analysis, finally draw target echo of the process. This paper presents A complete sawtooth wave LFM radar system simulation and the treatment process, simulation of the radar echo data after radar signal processing and D/A treatment, and finally form the echo signal.
Keywords： LFMCW ， FPGA ， radar target echo simulation
目 录
1 绪论 1
1.1 选题背景和意义 1
1.2 国内外发展状况 2
1.3 课题任务 3
1.4 论文安排 3
1.5 本章小结 3
2 雷达回波模拟 4
2.1 引言 4
2.2 LFMCW 雷达系统概述 4
2.3 目标回波信号模拟 6
2.4 差频信号时域分析 7
2.5 本章小结 8
3 运用Matlab仿真锯齿波线性调频信号的回波模拟 8
3.1 Matlab软件基本功能介绍 8
3.2 锯齿波线性调频信号回波模拟 10
3.3 本章小结 12
4 目标回波信号的产生过程 12
4.1 系统框图 12
4.2 利用FPGA产生目标回波信号 13
4.3 DCM内核介绍 16
4.4 D/A转换器介绍 19
4.5 本章小结 21
5 结论 21
5.1 雷达目标回波模拟研究结论 21
5.2 需要进一步开展的工作 22