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主要是研究信号、系统与系统响应,用matlab实现,对连续信号的采样以及卷积定理的验证以及相关的幅频特性等-is to study signal system and the system response using Matlab realized, the continuous signal sampling and convolution theorem certification and the associated frequency characteristics
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DFT进行频谱分析时的三种现象
1、混叠:对连续信号采样,要求连续信号是带限的,采样频率要足够高。Fs应满足Nyquist采样定理才不产生混叠。
采样前加低通滤波器防混叠
2、频谱泄漏:DFT对时域信号进行了截断(相当于采样信号乘了一个窗函数),时域的乘积相当于频域卷积,改变了原信号频谱。
改用其他窗函数(非矩形)改善泄漏。
3、栅栏现象:DFT 只给出了频谱在采样点上的取值,采样点间的频谱内容丢失。-DFT spectrum analysis of a
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MATLAB在信号处理中应用循环卷积用MATLAB计算连续时间信号的卷积-MATLAB in signal processing using MATLAB computing cyclic convolution of the convolution of continuous-time signal
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调用MATLAB命令conv()函数,编写连续信号卷积和的通用程序sconv( )-Call the MATLAB command conv () function, the preparation of continuous signal convolution, and the general program sconv ()
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连续信号的相关于褶积。本程序在matlab上已经测试,可以直接调用。-Continuous signal related to the convolution. This procedure has been tested in matlab can be called directly.
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可以进行离散信号与连续信号的卷积演示的界面,包括各种信号的演算,可展示结果。-Can be discrete convolution signal with a continuous signal interface presentation, including the calculation of various signals, display the results.
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求连续信号卷积的计算和用卷积求解连续系统的零状态响应;求连续系统的单位阶跃响应和单位冲激响应;-Continuous signal convolution computation and deconvolution solving continuous system of zero state response Continuous system unit step response and impulse response
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the conv of continuous time to achieve data convolution,something about signal and system,one from random and the other as we-the conv of continuous time to achieve data convolution,something about signal and system,one from random and the other as w
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里面有对离散、连续信号的简单运算和卷积计算,还有频谱分析等等,GUI页面。-There are discrete, continuous signals convolution simple arithmetic and calculations, as well as spectral analysis, etc., GUI page.
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信号与系统软件实验工具箱,本系统包括七个实验,分别是:信号的时域基本运算、连续信号的卷积与连续时间系统的时域分析、离散信号的卷积与离散时间系统的时域分析、信号的频域分析、连续信号的采样与恢复、系统的频域分析、信号的幅度调制与解调。为了加强学生的计算机编程能力和应用能力,所有实验均提供设计性实验内容,让学生参与编程。本系统既可作为教师教学的实验演示,又可作为学生动手实验的实验系统。-Signals and Systems Software experimental toolbox, the sys
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1、连续时间信号在MATLAB中的表示
2、连续时间信号在MATLAB中的应用
3、连续时间信号的卷积计算
4、连续时间LTI系统的时域分析
5、周期信号的傅里叶级数及频谱分析
6、傅里叶变换及其性质
7、连续时间LTI系统的频率特性分析及频域分析
8、信号抽样及抽样定理
9、拉普拉第五章 连续时间LTI系统的时域分析
斯变换
-A continuous-time signal representation in MATLAB 2, continuous
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信号系统上机实验代码与指导书,采样、连续卷积、连续运算、连续系统-Machine experimental code and instructions on signal systems, sampling, continuous convolution, continuous operation, continuous system
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通过matlab代码,FMCW调频连续波雷达的测距测角,意信号卷积的运算,并且绘制图象。- By matlab code, FMCW frequency modulated continuous wave radar range and angular measurements, Convolution operation is intended to signal and image rendering.
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一、 实验目的
1. 掌握典型序列的产生方法。
2. 掌握DFT的实现方法,利用DFT对信号进行频域分析。
3. 熟悉连续信号经采样前后频谱的变化,加深对时域采样定理的理解。
4. 分别利用卷积和DFT分析信号及系统的时域和频域特性,验证时域卷积定理。
二、实验环境
1. Windows2000操作系统
2. MATLAB6.0(First, the purpose of the experiment 1. master the method of producing ty
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