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MAWE


Last seen: 2 months ago |  Active since 2022

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The frequency axis for the PSD of a signal
Suppose I have the signal x that contains N samples, and I take the FFT of this signal and rearrange the frequency components to...

5 months ago | 0 answers | 0

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answers

Question


Bandpass power spectrum density issue
I have a signal x with power 15 dB and carrier frequency 29.7 GHz. I want to draw the power spectral desnity (PSD) of the signal...

5 months ago | 1 answer | 0

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answer

Question


Power over the total bandwidth doesn't equal the sum of powers over the sub-bandwidths
I have a signal x with power 10 dB and bandwidth W Hz. I want to calculate the power from the PSD of x over [0, W], [0, W/2], [W...

5 months ago | 1 answer | 0

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answer

Question


Unexpected behavior of FFT
I have this signal r = x.*cos(2*pi*f1.*t) + i.*cos(2*pi*f2.*t) + n where x and i are BPSK symbols {+1,-1} and n is additi...

6 months ago | 1 answer | 0

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answer

Question


pwelch finds two-sided PSD at carrier frequency
I have the signal rt=xt+it, where x and i are BPSK-modulated rectangular pulse train transmitted at carrier frequency fx and fi....

6 months ago | 1 answer | 0

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answer

Question


How to correctly plot the PSD of segments of a signal?
I have a signal r of length S samples of baseband bandwidth W Hz. This represents the received signal in a communication system....

6 months ago | 1 answer | 0

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answer

Question


Requested 250000x250000 (931.3GB) array exceeds maximum array size preference
I have two vector x1 and x2 each of length 250,000X1 samples that I want to multiply them elementwise as below, but I get the er...

6 months ago | 1 answer | 0

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answer

Question


What does dsp.SpectrumAnalyzer do under the hood?
I have the below code that displays the spectrum of a signal. However, before ploting this spectrum I want the original frequenc...

7 months ago | 1 answer | 0

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answer

Question


get the data of dsp.spectrum Analyzer
Currently, I am using the below code to display the spectrum of the received signal (before receive filtering) using dsp.spectru...

7 months ago | 1 answer | 0

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answer