1)编写完成DTFT的M—Function 1function [X,m]=DTFT(x,n,equ)2%3%功能:实现离散序列傅立叶变换X(ejw);4%x,n为输入序列5%w从0~π分成equ份6%7%并画出了幅频特性图8910k =0:equ; w = (pi/equ) *k;11X = x * (exp(-j*pi/equ)) .^(n'*k);1213magX = abs(X); angX =angle(X);14re...
function [y,n] = seqfold(x,n) y = fliplr(x); n = -fliplr(n); %matlab提供了翻褶函数:fliplr和plipud(x) %行向量翻褶函数:fliplr(x) %列向量翻褶函数:flipud(x) 翻褶的实现 clear all; clc; nx = -3:7; x=[0 0 0 1 1 0 0 0 1 0 1]; [y,ny] = seqfold(x,nx); subpl...
In figure 7, I expect the peak of sinc function (due to convolution of cosine and rectangular pulse) exactly at the location of the tone freq, but it does not. What may be the issue ??? My code is as below: ThemeCopy clear all; clc; close all; %%%%%%%%%%%%%%%%%%%%%%%%%%...
Calling a function as many times as possible in a given time interval I am trying to call the function test() as many times as possible in a given time interval. Here the function should be running for 15 seconds. However, the function doesn't stop running, and the Ende......
MATLAB Online で開く Ran in: The DTFT of h2 at omega = pi/2 is h2 = [0.5 -0.5]; fz2 = h2(1) + h2(2)*exp(-1j*pi/2) fz2 = 0.5000 + 0.5000i Itsmagnitude, which is what is being plotted using the abs() function, is ...
在 matlab 中新建函数 df: function[某 k]=df(某 n,N)n=0:1:N-1;k=0:1:N-1; Wn=e 某 p(-j 某 2 某 pi/N);nk=n'某 k;Wnk=Wn.^nk;某 k=某 n 某 Wnk; ~~在 matlab 中输入以下代码: 某 n=[0,1,2,3];k=0:1:3;N=4; -1- 某 k=df(某 n,N);y=ab(某 k);tem(k...
1 Create a Triangle Signal The function codes are put in the appendix. Following is the output figure of the function. Fig. 2 The Triangle Signal Ex. 2 CTFT And CTFS CTFT CTFS Time Domain ContinuousAperiodic ContinuousPeriodic Frequency Domain ContinuousAperiodic DiscreteAperiodic Between the CTFS ...
Calling a function as many times as possible in a given time interval I am trying to call the function test() as many times as possible in a given time interval. Here the function should be running for 15 seconds. However, the function doesn't stop running, and the Ende... ...
ch2_1DTFT 第2章序列的傅立叶变换DTFT与Z变换 第2章序列的傅立叶变换与Z变换 2.1序列的傅里叶变换2.2傅里叶变换的对称性质2.3序列的Z变换2.4Z反变换2.5Z变换的基本性质和定理2.6序列的Z变换与连续信号的拉氏变换及傅里叶变换的关系2.7系统离散的频率特性 第2章序列的...
Plotting DTFT of Finite Sum in MATLAB Homework Statement x[n] = Ʃ ck * δ(n-k), from k = -N to N. Plot the DTFT as a function of the number of terms N. This is a finite sum. Homework Equations The equation for the DTFT of a signal, which is Ʃ x[n] * e-j*2∏...