MATLAB: How to plot the signal with timesteps

signal processing

i have a signal value, of dimension 400 x 1…. how to plot the signal with timesteps of 7 microseconds….

Best Answer

N = 400 ;
signal = rand(N,1) ;  % a random signal 
dt = 10^-6 ;  % time step 
t = zeros(N,1) ;  % initilaize time 
t(1) = 0 ;   % intial time = 0 
% generate time 
for i = 2:N
    t(i) = t(i-1)+dt ;
end
plot(t,signal)

Related Solutions

MATLAB: Plotting a signal sin(2pif*t) and obtaining a discrete periodic signal.

You can use plot to graph continuous signal, and stem to graph discrete signal.

For example:

t = 0:6e-2:1;
signal = sin(2*pi*t);
subplot(2,1,1)
stem(t,signal)
subplot(2,1,2)
plot(t,signal)

MATLAB: Interpolating data from missing timesteps.

I'm not sure why you want an array that is 46x28x6. My interpretation of your question is that you have a 46x28 matrix of (spatial?) data for each time step, and you want to interpolate your 46x28x364 array to get a 46x28x368 array. You can do it without any loops as follows:

t0 = [1:156 161:368]; % your starting time steps
ti = 156:161;   % the interpolated time steps
PRECIP_INT = permute(PRECIP_CS,[3 1 2]); % interp1 interpolates the first dimension of the array
PRECIP_INT = interp1(t0,PRECIP_INT,ti);
PRECIP_INT = permute(PRECIP_INT,[2 3 1]); % put the dimensions back the way they were.

EDIT: I modified the answer to give you just the 6 time steps.

Best Answer

Related Solutions

MATLAB: Plotting a signal sin(2*pi*f*t) and obtaining a discrete periodic signal.

MATLAB: Interpolating data from missing timesteps.

Related Question

MATLAB: Plotting a signal sin(2pif*t) and obtaining a discrete periodic signal.