Plot the square wave and overlay a sine. Normalize the x-axis by π. The generated square wave has a value of 1 for intervals [nπ,(n+1)π) with even n and a value of −1 for intervals [nπ,(n+1)π) with odd n. The wave never has a value of 0. plot(t/pi,x,'.-'...
x = square(t) generates a square wave with period 2πfor the elements of the time array t. square is similar to the sine function but creates a square wave with values of –1 and 1. 产生一个周期为 2π 的方波...
plot(t,[impulse unitstep ramp quad]) Generate and plot a square wave with period 0.5 and amplitude 0.81. sqwave = 0.81*square(4*pi*t); plot(t,sqwave) Select a Web Site Choose a web site to get translated content where available and see local events and offers. Based on your locatio...
t = 0:.02:3.14; y = zeros(10,length(t)); x = zeros(size(t)); for k = 1:2:19 x = x + sin(k*t)/k; y((k+1)/2,:) = x; end plot(y(1:2:9,:)') title('The building of a square wave: Gibbs'' effect') 5.下面提供了一个三维曲面图,该曲面图表示正弦波到方波的逐...
因为案例需要,所以这里先看一下linspace这个函数的用法: y = linspace(x1,x2); 均匀产生位于x1 到 x2 之间的100个点; y = linspace(x1,x2,n); 均匀产生位于x1 到 x2 之间的n个点。 x = square(t) generates a square wave with period 2π for the... ...
4 第四，同时得到图形figur,2，y1，y2，y3，y4合成绘制在图2中。5 第五，通过双击工作区（Workspace）中的变量A和B，可以查看A，B的数据情况，可以清楚看到A为4*63的矩阵，B是A的转置，B为64*3的矩阵。注意事项 A square wave is made up of a sum of odd harmonics，奇数谐波合成方波。
以在0 到 3π之间等间隔产生100个点，然后产生一个周期为2π的方波为例：Create a vector of 100 equally spaced numbers from 0 to 3π. Generate a square wave with a period of 2π.clear clc close all t = linspace(0, 3*pi);x = square(t);plot(t/pi,x,'.-',t/pi,sin(t...
方波信号(square wave signal)可看作是周期性的矩形信号。 代码: w=1;t=-10:0.01:10;ya=square(w*t);plot(t,ya);holdon;k=-10:10;yd=square(w*k);stem(k,yd);xlabel('t / k');ylabel('f(t) / f[k]');title('square wave signal'); ...
%Create a vectorof100equally spaced numbers from0to3π.Generate a square wavewitha periodof2π.clear clc close all t=linspace(0,3*pi);x=square(t);plot(t/pi,x,'.-',t/pi,sin(t));%Plot the square wave and overlay a sine.Normalize the x-axis by.xlabel('t / \pi')grid on ...
it creates a square wave with peaks of +1 to -1 instead of a sine wave. 4. Fft: fft(X,N) is the N-point fft, padded with zeros if X has less than N points and truncated if it has more. 5. plot3:plot3(x,y,z), where x, y and z are three vectors of the same length...