基于m序列LTI系统脉冲响应测试.docx

基于m序列的LTI系统脉冲响应测试摘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：m序列；脉冲响应测试；LTI系统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目录引言1第1章绪论21.1伪随机序列的背景和发展21.1.1伪随机序列应用和发展21.1.2 m序列21.2脉冲响应测试3第2章 m序列42.1 m序列的性质42.1.1 m序列的定义42.1.2 m序列的自相关特性52.2 m序列的生成52.2.1 本源多项式52.2.2 由硬件生成m序列62.2.3 由软件生成m序列62.3 m序列法测量LTI系统脉冲响应原理7第3章方案论证103.1 m序列的产生及脉冲响应103.2 LTI系统10第4章总体设计及仿真124.1 MATLAB生成m序列124.2仿真结果及分析144.3 脉冲响应相关辨识15第5章单片机产生m序列185.1AT89C52芯片简介185.2 硬件电路185.3 电源电路195.3.1 电源变压器205.3.2