# MAWE

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Question

error in using array2table

I have two numerical values in an array x and two string values in an array y. In the workspace these are shown as [0, 7.2e-9] a...

1 year ago | 1 answer | 0

### 1

answerQuestion

How can I implement these for loops efficiently using covolution?

I have this code for xx=1:length(x) for kk=1:length(x) xSinc(xx) = xSinc(xx)+x(kk)*sinc(xx-kk-delta/T); en...

1 year ago | 2 answers | 0

### 2

answersQuestion

Does the resample function do sinc interpolation before resampling?

I have original samples x of x(t) taken at t=kT_s where k is integer and T_s is the sampling period. From these samples, I want ...

1 year ago | 1 answer | 0

### 1

answerQuestion

How can I implement this for loop in vector operation form?

I have this for loop that I would like to implement more efficiently clear all; clearvars; N = 5; Rs...

1 year ago | 1 answer | 0

### 1

answerQuestion

Find the difference between all columns of a given row of a matrix

I have MXL matrix. For each row, I want to find the absolute difference between the columns, without repeating. For example, if ...

1 year ago | 2 answers | 0

### 2

answersQuestion

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...

2 years ago | 0 answers | 0

### 0

answersQuestion

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...

2 years ago | 1 answer | 0

### 1

answerQuestion

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...

2 years ago | 1 answer | 0

### 1

answerQuestion

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...

2 years ago | 1 answer | 0

### 1

answerQuestion

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....

2 years ago | 1 answer | 0

### 1

answerQuestion

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....

2 years ago | 1 answer | 0

### 1

answerQuestion

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...

2 years ago | 1 answer | 0

### 1

answerQuestion

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...

2 years ago | 1 answer | 0

### 1

answerQuestion

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...

2 years ago | 1 answer | 0