Kalasagarreddi Kottakota
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Accept 20 answers given by other contributors
Awarded to Kalasagarreddi Kottakota on 10 Mar 2023
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Awarded to Kalasagarreddi Kottakota on 15 Feb 2022
Feeds
Frage
How to change the spectrogram magnitude to linear?
I have the following code of 100 Hz tone with a magnitude of 2. But on the colorbar I get magnitude as 110. Could you help me to...
6 Monate vor | 2 Antworten | 0
2
AntwortenFrage
What is the computatinal complexity of resample(x,p,q)?
Hi I am perform downsampling with resample(x,p,q) in matlab and need to find the computational complexity of it. y = resample...
12 Monate vor | 1 Antwort | 0
1
AntwortFrage
How to compute SNR in dB for complex signals when noise is added in terms of standard deviation?
How to calculate the SNR in dB, when noise is added in terms of standard deviation(std) for a complex signal in the code q1_Nois...
etwa ein Jahr vor | 1 Antwort | 0
1
AntwortFrage
How to perform forward and backward lowpass filtering with filter command?
I need to perform forward and backward filtering with filter commnad in matlab. I was able to perform forward filtering, but not...
etwa ein Jahr vor | 0 Antworten | 0
0
AntwortenFrage
How to calculate the computational complexity of filtfilt low-pass filter?
I have a signal 'x' of length N which I perform lowpass filtering with matlab filtfilt. a and b are filter coefficients. Is it ...
etwa ein Jahr vor | 1 Antwort | 0
1
AntwortFrage
How to find the matlab interp1 computational complexity?
Hi, I am trying find the computational complexity of interp1 with 'linear', and "cubic". Can I get some help regarding this? ...
etwa ein Jahr vor | 1 Antwort | 0
1
AntwortFrage
Why low pass filtering requires long duration time signals?
Hi, I am working with lowpass filtering using filtfilt in matlab. I have observed filtering process is increasing its efficienc...
mehr als ein Jahr vor | 2 Antworten | 0
2
AntwortenFrage
How to check the freqeuncy response of a boxcar filter?
Hi, I am performing a lowpass filtering with two different filters. a) window i.e. box car b) butter filter. For butter, I know ...
mehr als ein Jahr vor | 1 Antwort | 0
1
AntwortFrage
How to represent bar plots efficiently?
I have a set of data, where the 2nd value is very very small compared to the first. Thus, it is very difficult to visually see. ...
mehr als ein Jahr vor | 1 Antwort | 0
1
AntwortFrage
What is the best metric to compute the error for complex time series data?
I have a complex number time series of data for ground truth and estimated values. I am currently using Mean square error metri...
mehr als ein Jahr vor | 1 Antwort | 0
1
AntwortFrage
How to plot a 3d surf plot?
I am executing the following code to plot a 3d surface. I get an error. Can I get some help to correct it. Or if there any altte...
mehr als ein Jahr vor | 1 Antwort | 0
1
AntwortFrage
How to shape the subplot to square and change colorbar label to top of the bar?
I need a square subplots and the colorbar label needs to move to top of the bar. Could some one help me? set(0,'DefaultAxes...
mehr als ein Jahr vor | 1 Antwort | 0
1
AntwortFrage
How to set properly single colorbar for subplots?
Hi, As you see here, I need only one globar color bar for all the subplots. But when I try using this, the first two subplots ar...
mehr als ein Jahr vor | 1 Antwort | 0
1
AntwortFrage
How to move the colorbar label to top position of the bar?
I need to change the colorbar label to the position showed in the attached image. C = [0 2 4 6; 8 10 12 14; 16 18 20 22]; clim...
mehr als ein Jahr vor | 1 Antwort | 0
1
AntwortFrage
What is the best error metric for complex numbers in matlab?
I need to calculate the error percentage for complex numbers and I generally use: All measured and actual are complex number...
mehr als ein Jahr vor | 2 Antworten | 0
2
AntwortenFrage
How to define cutoff freqeuncy when using rectwin for lowpass filtering?
Hi, when perfoming lowpass filtering, how to choose the cut-off freqeuncy argument? Is it fc/fs/2 or fc/fs? fc is cut off frequ...
mehr als ein Jahr vor | 1 Antwort | 0
1
AntwortFrage
How to design a low pass filter with rectangular window?
Hello all, Here, I have a lowpass filter with butter 15Hz cutoff freqeuncy. But I am looking for a low pass filter using rectan...
mehr als ein Jahr vor | 1 Antwort | 0
1
AntwortFrage
How to remove the ripple or artifacts caused by lowpass filter?
Hi, I am in a complex situation, where the lowpass fitering with sharp cutoff freqeuncy is affecting a technique I was developin...
mehr als ein Jahr vor | 2 Antworten | 0
2
AntwortenFrage
How to understand the design of lowpass butter filter?
Hi, I am designing a low pass butter filter with very small cut-off freqeuncy. But I see very wierd results which I could not un...
mehr als ein Jahr vor | 1 Antwort | 0
1
AntwortFrage
How to eliminate for loop and perform the computation parallely?
Hi, I am looking a way to reduce the time for computation of the problem of this size. This code is a larger part of a big code ...
mehr als ein Jahr vor | 1 Antwort | 0
1
AntwortFrage
How to compute the double integral over dx and dy?
Hi, Can someone help me to how to code this equation in matlab? Let x and y are axis of a plane. dx and dy are increments. I ha...
mehr als ein Jahr vor | 3 Antworten | 0
3
AntwortenFrage
How to plot index of the coordinate on plot?
x, y are coordinates and I need also the index of the coordinate. As I have 10 coordinates , I need to have the coordinate numbe...
mehr als ein Jahr vor | 1 Antwort | 0
1
AntwortFrage
How to change the imagesc axis?
I have he following code which displays imagesc axis with the length of the samples. But I want the x axis to be dispyed w.r.t t...
mehr als ein Jahr vor | 2 Antworten | 0
2
AntwortenFrage
Are there any matrix balancing/scaling function in matab for complex rectagular matrices?
I have a complex number matrix with 45 x 2 size. And it needs to be inverted. But the condition number is too large around 8000....
fast 2 Jahre vor | 3 Antworten | 0
3
AntwortenFrage
How to check the proportionaly of columns of a complex rectagular matrix?
I have a complex matrix G of size 45 x 2, where in magitude wise the 2nd column is very small than 1st. Here in the code column...
fast 2 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
How to perform derivative of a random signal without finite difference schemes?
I have a random signal measured through experiments. When I perform derivative of signal using diff or gredient, these functions...
fast 2 Jahre vor | 3 Antworten | 0
3
AntwortenFrage
How to generate a set of gaussian noise signal with zero mean and say 'x' variance and measure their covariance?
I am looking to generate 3 white gaussian signals with 0 mean and 0.25 and compute the covariance matrix of them. Could someone ...
fast 2 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How to access the values of sym?
I am trying to solve an inequlaity using feval and the function return the limits in variable sym. May I know how to access the ...
fast 2 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How can I find the filter bandwidth of Savitzky-Golay filtering?
The matlab function sgolayfilt(x,order,framelength) takes polynomial order and framelength as input arguments. As savitzky acts ...
fast 2 Jahre vor | 3 Antworten | 1
3
AntwortenFrage
How to perform inverse between a page of a 3D matrix and a column vector without loops?
The matrix H looks like 9 x 2 x 14 and matrix A1 is 9 x1. I need to perform inversion between every page of H with A using mldiv...
fast 2 Jahre vor | 2 Antworten | 0
2
Antworten
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