基于m序列的LTI系统脉冲响应测试--毕业论文.docx

大学毕业设计（论文）- I -基于基于 m 序列的序列的 LTI 系统脉冲响应测试系统脉冲响应测试摘摘 要要最长线性反馈移位寄存器序列简称 m 序列，是一种伪随机序列、伪噪声(PN)码或 伪随机码m 序列是一种伪随机序列，在通信、雷达、密码学、系统脉冲响应等领域都 有应用 本文主要介绍了 m 序列的基本性质，以及利用 m 序列进行系统脉冲响应测试的基 本原理，并介绍了由 MATLAB 生成 m 序列的方法，以及在 MATLAB 环境下测试 LTI 系统 脉冲响应的仿真过程利用 MATLAB 高效的数据处理以及可编程功能，以及数据可视化 功能，方便快捷直观的显示出了所需要的结果此外，在文章的结尾设计了一个单片 机生成 m 序列的电路 仿真结果显示，MATLAB、单片机均能生成 m 序列；相比较而言，由 MATLAB 程序简 单，操作性强，而且其可视化技术使 m 序列更直观的显示出来m 序列应用广泛，相信 随着研究的深入，一定有更为广阔的应用前景关键词关键词：m 序列；脉冲响应测试；LTI 系统基于 m 序列的 LTI 系统脉冲响应测试- II -LTI System Impulse Response Test Based on mSequenceAbstractThe longest linear feedback shift register sequence, hereinafter referred to as msequence is a pseudo random sequence, pseudo noise (PN) code or pseudo random code. M sequence is a pseudo random sequences, in communication, radar, cryptography, system impulse response, and other fields are used. This article mainly introduced the basic properties of m sequence, and the use of m sequence, the basic principle of the system impulse response test, and the method of the m sequence generated by the MATLAB, and in the MATLAB environment test of LTI system impulse response of the simulation process. Use of MATLAB and efficient data processing and programmable function, and the data visualization function, convenient and quick and intuitive results showed a need. In addition, at the end of the article design a microcontroller to generate m sequence circuit. The simulation results show that the MATLAB, the single chip microcomputer can produce m sequence; In comparison, by MATLAB is simple, feasible, and the visualization technology make m sequence more intuitive display. M sequence is widely used, believe that with the deepening of the research.Keywords: m sequence; Impulse response tests; LTI systems***大学毕业设计（论文）- III -目目 录录引引 言言...........................................................................................................................................1 第第 1 章章绪论绪论...........................................................................................................................2 1.1 伪随机序列的背景和发展....................................................................................................................2 1.1.1 伪随机序列应用和发展.................................................................................................................2 1.1.2 m 序列.............................................................................................................................................2 1.2 脉冲响应测试........................................................................................................................................3 第第 2 章章 m 序列序列..........................................................................................................................4 2.1 m 序列的性质........................................................................................................................................4 2.1.1 m 序列的定义.................................................................................................................................4 2.1.2 m 序列的自相关特性.....................................................................................................................5 2.2 m 序列的生成........................................................................................................................................5 2.2.1 本源多项式....................................................................................................................................5 2.2.2 由硬件生成 m 序列.......................................................................................................................6 2.2.3 由软件生成 m 序列.......................................................................................................................6 2.3 m 序列法测量 LTI 系统脉冲响应原理................................................................................................7 第第 3 章章 方案论证方案论证.....................................................................................................................10 3.1 m 序列的产生及脉冲响应...............................................................................................................10 3.2 LTI 系统............................................................................................................................................10 第第 4 章章 总体设计及仿真总体设计及仿真.........................................................................................................12 4.1 MATLAB 生成 m 序列.......................................................................................................................12 4.2 仿真结果及分析..................................................................................................................................14 4.3 脉冲响应相关辨识.............................................................................................................................15 第第 5 章章 单片机产生单片机产生 m 序列序列................................................................................................。