# Questions tagged [signal-analysis]

The processing of signals for the purpose of extracting a parameter or property embedded in a signal. Signal goes in and far fewer numbers come out.

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### Why does my range shift after applying Stolt interpolation?

I am working with an FMCW Radar Simulation, where I have generated 3 targets with slant ranges: 156m,137m 118m The distances can be computed based on the formula, Distance = (Bin_idx/Nrg * Fs) * (c / ...
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### Problem regarding Inverse Z-transformation

I am doing research on time series analysis. I did a z-transform of the function $F(n)$. I get results as $F(z) = \frac{1}{1-\frac{z^{2}}{(z-a)(z-b)}}$. I tried to find inverse z-transform to find the ...
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### How do I find if my amplifier compressed the waveform?

I have a waveform that's modulated by a trapezoidal function. I fitted the envelope to the expected function to show if the amplitude is modulated correctly. I also plotted the difference of the fit ...
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### Can a time signal be modeled as a multivariate Gaussian distribution?

Suppose I have several groups of signal measurements, each containing multiple replicates, and I know that within each group the signal "shape" is approximately the same but with variance/...
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### Unable to analyze current signals of 3 phase inducion motor

We are receiving 3 phase current readings from Induction motor using CT sensors. I am not aware of what processing is being done on the spot. My job is to do Motor Current Signature Analysis on it ...
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### In continous wavelet transform, all wavelets must have the same energy regardless of their scales,why?

In Continuous Wavelet Transform (CWT) To achieve energy normalization and to ensure that all wavelets have the same energy regardless of their scales, each wavelet is divided by the square root of the ...