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Any anybody please give the the code in MATLAB for below mentioned question?please .Urgent

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nihal
nihal 2013-11-17
关闭： Walter Roberson 2013-11-21
Plot the sum of complex sinusoidal over the time period -10 secs<t<10 secs and
x(t)=1/20 Σ(from -15 to 15) sinc(k/20) e^j*200*π*k*t

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Image Analyst
Image Analyst 2013-11-17
What is the step in time? 0.05 seconds? Maybe pick on that will let you have about a thousand points over the -10 to +10 period so it can be plotted efficiently on your screen without having to calculate too many points that you won't even see once they're plotted, like:
t = linspace(-10, 10, 1000);
k = -15:15; % Step size of 1.
Then, I'm sure you know that e is done by the exp() function, and the summing is done by the sum() function (assuming you don't blow it away with your won variable called sum which all too many people do). And I'm sure you know that sinc(t) = sin(t) ./ t. So you're all set to make a stab at the equation:
x = (1/20) * sum(...............

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