Francisco Leffler, articles - page 39

$\tt awgn$ and $\tt wgn$ functions in MATLAB always output the same signal, no matter what I input as SNR
How do you add a noise signal in Matlab?How do you find the signal to noise ratio in Matlab? How do you add a noise signal in Matlab?noisy_signal = ...
How to determine variance/std deviation of Gaussian noise from measured data
How do you calculate the variance of a noise signal?What is variance of Gaussian noise?Is noise variance or Standard Deviation?What is Gaussian noise...
Is the system $y(n)=x(n^2)$ time invariant?
Is y/n )= x N 2 time invariant?How do you know if a system is time invariant?Is Y n )= x (- n time invariant?Is the system Y N x N 2 )] 2 linear? Is...
Looking for a simple and effective notch filter
Which is a notch filter?How do you identify a notch filter?How do you make a notch filter?What is another name for a notch filter? Which is a notch ...
FFT of ecg signals
What is FFT in ECG?What is FFT of a signal?How do you find the FFT of a signal?What is FFT good for? What is FFT in ECG?Fast Fourier Transform (FFT)...
Demodulating AM signal from carrier signal on Matlab
How to demodulate an AM signal in Matlab?How do you demodulate an AM signal?How the carrier is removed at the output in demodulation? How to demodul...
Which type of quantization is better?
Explanation: According to signal to noise level ratio non uniform quantization provides better quantization for weak signals. Which is better uniform ...
Wavelength filtering (photos)
What is a wavelength filter?How can I tell if someone is using filters on their photos?Are filters cheating in photography? What is a wavelength fil...
MFCC in Speech Recognition and ANN
What is MFCC used for in speech recognition?What is MFCC in speech emotion recognition?Why is MFCC used in audio classification?Is mel spectrogram sa...