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Results tagged with signal
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user 11298
A signal is a stream of information in the form of a varying quantity. Usually in electronics, signals can be in the form of voltages, currents, or radiated electromagnetic fields.
4
votes
MATLAB about generating and analysing noisy signal
I assume you are usign White Gaussian Noise, so you can check out this function: http://www.mathworks.es/help/toolbox/comm/ref/wgn.html
Get the noisy signal xn. … I don't know what "performance" refers to, but I think it has something to do with signal and noise power. If so, keep in mind that you don't need to compute an integral. …
- 577
1
vote
Amplitude and phase spectrum in MATLAB
Fs=100; %sampling frequency
T=1; %signal length
N=T*Fs; %number of samples
f=-Fs/2:Fs/N:Fs/2-Fs/N; %frequency vector
x=cos(2*pi*10*t);
Xf=fft(x);
Xf=fftshift(Xf);
plot(f,abs(Xf)) %magnitude
b) Assume … the signal is real, so the spectrum is symmetric. …
- 577