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I am learning about stochastic processes and I don't get one thing:What is the advantage of calculating the PSD of a signal using the Wiener-Khinchin theorem $Phi(omega) =mathcal{F}{R_{xx}}$ and calculating...
Asked on 11/30/2021 by user2796729
2 answerHow do we find PDF of sum of correlated exponential random variables. I know for independent random variables. But how to find it for correlated exponential random variables....
Asked on 11/30/2021
1 answerI am hoping to use scipy.signals.filtfilt() to smooth some signals in Python, and wanted to build the filter based on a window like a hanning window or whatever. E.g.:...
Asked on 11/30/2021
1 answerThis question is related to on How to decide what platform is best to implement real-time audio processing on?, but focusing on Windows. I'd like to be able...
Asked on 11/28/2021
4 answerI'm having a hard time to calculate the next function, and I don't really know Matlab good enough to calculate it there.Help would be appreciated: $$h[n]=frac{A_1 cos[theta_1(n-N/2)]}{n-N/2}$$...
Asked on 11/28/2021 by Jhon Margalit
1 answerI am not from electrical or electronic background so my knowledge will be lacking. MFCC is represented by 39 values for each window frame. 12 values are the mel filter-bank...
Asked on 11/28/2021 by Naveen Gabriel
0 answerGiven an unknown OFDM symbol consisting of 9144 samples, interested to know the size of the FFT used in the TX/Number of bins. Down-sampling to 512,256,128,64,32 yields the following....
Asked on 11/25/2021 by SenSen
3 answerI want to take the Fourier transform of the following transient signal,$$f(t) = e^{-t/tau} cos((omega_0 + m t)t)$$, where $m$ is some gradient parameter in units of...
Asked on 11/25/2021
1 answerIf I had 50Hz noise coming from power line, and signals in the same frequency range (EEG for example 0.1Hz to 100Hz). If my sampling frequency is 30kHz but I...
Asked on 11/25/2021
0 answerThe DFT size in OFDM demodulation is usually matched to the DFT size in the modulation process. This makes modulation/demodulation simple where each FFT bin (i.e., sample) represents one symbol....
Asked on 11/25/2021
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