摘要伴随着电子科学技术的飞速进步，雷达的功能及应用变得越来越复杂，与此同时其 调试的难度也随之逐渐增大。在真实的环境中进行雷达系统功能调试必定会消耗大量的 人力物力。因此，雷达模拟器的研究变得非常必要。本文讨论转发式雷达回波中频模拟 器实现了对目标距离和速度信号的模拟。78930

本文对转发式雷达回波中频模拟器的信号处理过程进行了详细的仿真验证及硬件 实现。该过程包括：信号采集、数字变频处理、信号本文的抽取和内插处理及目标信息 添加几个模块。该模拟器信号处理部分的实现共分为三个阶段：第一阶段分析了转发式 雷达回波中频模拟器的目标回波模型，并根据需求建立了模型；第二阶段主要利用 MATLAB 软件对设计的信号处理案进行了仿真验证；第三阶段根据 MATLAB 仿真过程 做了相应的硬件程序设计。

毕业论文关键字 雷达模拟器 ISE FPGA MATLAB 仿真 信号处理

毕 业 设 计 说 明 书 外 文 摘 要

Title Implementation and verification of the Intermediate frequency simulator for forward radar

Abstract With the rapid progress of Electronic Science and technology, the function and application of radar becomes more and more complex, at the same time, the difficulty of debugging  has been gradually increased。 In the real environment, the function of the radar  system  will consume a lot of manpower and material resources。 Therefore, the research of the radar simulator becomes very necessary。 In this paper, we discuss the simulation of the target distance and the speed signal by the forward radar echo simulator。

In this paper, the signal processing process of the forward radar echo  simulator  is simulated and verified in detail。 The process includes: signal acquisition, digital frequency conversion processing, signal extraction and interpolation processing and target information to add a few modules。 The simulator of the part of the signal processing is realized, which is pided into three stages: first stage of forwarding the target echo model of radar intermediate frequency echo simulator and according to the demand model; signal in the second phase, the use of MATLAB software to design the processing case is verified by simulation; the third stage under the MATLAB simulation process do corresponding hardware program design。

Keywords：Radar simulator ISE FPGA MATLAB simulation signal processing

本科毕业设计说明书 第 I 页

目 次

摘要 1

ADSTRACT 2

目录 3

1 绪论 1

1。1 研究背景及意义 1

1。2  国内外发展状况 1

1。3 本文研究内容和结构安排 2

2  转发式雷达回波中频模拟器的相关理论及仿真 4

2。1 雷达模拟器系统总体结构 4

2。2 雷达回波模型 5

2。3  信号采样理论 7

2。4  数字下变频 8

2。5 信号抽取