绘制连续信号 [英] Plotting a Continuous signal

问题描述

我正在尝试按照下面的图像精确打印连续信号:

I am trying to exactly print a continuous signal as per image below:

下面是我的代码:

x=[0 0 0 1 1 1 1 1 1 -1 -1 0 0];
n=[6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 ];
subplot(2,2,2);
axis([min(n)-10,max(n)+10,min(x)-10,max(x)+10]);
plot(n,x); 
grid on;
xlabel('Time');
ylabel('x2(t)');
title('Continous Signal');

但是输出图的数字与预期的不同:

But the output plot figure is not the same as per expectations:

难道在MATLAB中我们无法正确显示连续信号吗?如果是，我需要在代码中进行哪些更改.

Is it that in MATLAB we cannot display continuous signal properly? If yes what changes I need to make in my code.

为什么信号值不通过直线连接-它会形成曲线(或倾斜的直线)?

Why do the signal values are not connected via a straight line - it makes a curve (or slanted straight line)?

推荐答案

您正在寻找 stairs 函数:

x = [0 0 0 1 1 1 1 1 1 -1 -1 0 0];
n = [-6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 ];

stairs(n,x); 

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