Suraj Kumar

Last seen: 2 days 前 | 自 2024 起处于活动状态

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统计学

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已回答
why are the scalogram coefficients given in a table rather than matrix?
Hi Lucrezia, To extract the scalogram coefficients which are stored in table format and convert them into a matrix format, you ...

6 days 前 | 0

已回答
How to image de-noise whit (Wavelet) using dwt3 and idwt3
Hi Lech, To extend your 2D wavelet denoising approach to 3D using 'dwt3' and 'idwt3', we will need to adjust the code to handle...

6 days 前 | 0

已回答
Replace characters in strings that meet a condition
Hi Paul, To replace the characters 'HH' in the strings we can use logical indexing with the contains function to identify which...

7 days 前 | 0

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Sampled signal spectrum ?
Hi Nabil, To plot the spectrum of a sampled signal in MATLAB, we can use the Fast Fourier Transform (FFT) to convert the time-d...

7 days 前 | 0

已回答
extracting data from wavelet
Hi Devi, To extract variance data from a wavelet plot in MATLAB, we can start by computing the Continuous Wavelet Transform (CW...

7 days 前 | 0

已回答
How to determine onset and offset for a continuous data?
Hi Lim, To determine the onset and offset of peaks for each cycle in sinusoidal-like continuos data, you can go through the fol...

8 days 前 | 0

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discrete wavelet transform (DWT)
Hi Barney, To perform a discrete wavelet transform (DWT) on a signal with a sampling frequency of 6 Hz you can go refer to the ...

8 days 前 | 0

已回答
Error of extraction the text in DWT
Hi Ei Sandar, To resolve the issues that you are facing with extracting the message using the Discrete Wavelet Transform (DWT) ...

8 days 前 | 0

已回答
Inverse the accidental add of time-shifted version of my audio signal
Hi Maria, I understand you're trying to recover your original audio signal ( x(n) ) from the combined signal ( z(n) = x(n) + x(...

12 days 前 | 0

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How to includ/plot the local maxima date on a plot?
Hi Wolfgang, From what I understand you want to plot the local maxima, annotate them with their corresponding dates and highlig...

13 days 前 | 0

已回答
How to generate a square wave with specif values
Hi Edoardo, To generate a square wave in MATLAB that starts at a baseline value c0 and reaches a maximum value of c0 + Vmax, yo...

13 days 前 | 0

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Convolve a chirp signal with a dirac (kronecker delta) function (1 at x=1 and x=-1 and -1 at x=0)
Hi Sam, The 'frest.Chirp' function in MATLAB is used to create a frequency response estimation input signal, specifically a chi...

15 days 前 | 0

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How to plot a cone of influence with the old CWT version?
Hi @Godspeed Sun, To plot the cone of influence(COI) with the old CWT version you can manually calculate the COI and then plot ...

15 days 前 | 0

已回答
How to make the spectrum of two spikes?
Hi Maria, To perform spectral analysis on spike trains in MATLAB, you can start by creating a time series that represents your ...

21 days 前 | 0

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How to extract ENF from audio in matlab?
Hi @振贤倪, The ENF is typically embedded in audio files due to the electromagnetic interference from power lines. Following ar...

21 days 前 | 0

已回答
the axis in wavelet transform
Hi Eva, When you perform a wavelet transform (WT), such as the discrete wavelet transform (DWT) using the Daubechies wavelet ('...

21 days 前 | 0

已回答
How to add delay
Hi @Mohamed Mahir, To introduce a delay between each DTMF signal generated by your Key_generator function, you can add a period...

21 days 前 | 0

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how to export plot from matlab2021a to excel using Mac
Hi @cheng li, To export a plot from MATLAB 2021a to Excel on a Mac, you can refer to the following steps and attached code snip...

1 month 前 | 0

已回答
draw isodosecurve with contour code in matlab
Hi @zahra khodakarami, To draw isodose curves using the contour function in MATLAB, you can follow these steps and refer to the...

1 month 前 | 0

已回答
CNN methods to convert one-dimensional network traffic that is .csv file into two-dimensional grayscale images
Hi @Sarkunavathi A, To convert one-dimensional network traffic data from a CSV file into two-dimensional grayscale images using...

1 month 前 | 0

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How to regrid from finer to coarser resolution?
Hi @SUDIPTA GHOSH, Based on my understanding your query is about regridding data from a finer resolution (1-degree by 1-degree)...

1 month 前 | 0

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How can i Reshape columns for 34400x202 table
Hi @Ömer Faruk Kilic, From what I understand you want to reshape the second matrix so that it matches the number of rows in the...

1 month 前 | 0

已回答
How can I enter a variable disturbance as a matrix input
Hi @Mohamed Amine TAIB, To include a variable disturbance in a MATLAB system, especially when dealing with state-space represen...

1 month 前 | 0

已回答
How do you plot an ellipse on a poincare graph using standard deviation 1 and 2 as the radii?
Hi @Louise Kennedy, To plot an ellipse on a poincare graph using MATLAB, where the ellipse is centered at the mean and has stan...

1 month 前 | 0

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Write the function to return the x and y coordinates of the input pixel’s connected neighbours, i.e., the x and y coordinates of all pixels in the set c(p) for the given P.
Hi @RAHUL SURESHBABU, You were on the right track to find the x and y coordinates of all connected neighbors of a specific pixe...

1 month 前 | 0

已回答
Error using extract Expected audioIn to be one of these types: single, double Instead its type was cell. Error in audioFeatureExtractor/extract (line 626) valid
Hi @SRIDHAR C, The error message you're encountering indicates that the extract function is expecting the input audioIn to be o...

1 month 前 | 0

已回答
Wavelet analysis of timeseries data
Hi @Sabita, To perform wavelet analysis on a time series of daily temerature data using MATLAB, you can go through the followin...

2 months 前 | 0

已回答
Requesting to procedure to download Mutliple .mat file and to make as one .MAT and load the that .MAT file using Datastore using loop
Hi @Tamilselvan T, To combine multiple ".mat" files into a single ".mat" file and then load that data using a datastore in MATL...

2 months 前 | 1

已回答
I want to use DWT for feature extraction of heart sound anaysis , can anyone help me through matlab code??
Hi @mahlet gazahegn, To use the Discrete Wavelet Transform (DWT) for feature extraction in heart sound analysis using MATLAB, y...

2 months 前 | 0

已回答
how can i extract the data from the spectrum analyzer in simulink to matlab
Hi @Ummey Haque, To extract data from the Spectrum Analyzer in Simulink to MATLAB you can use a "To Workspace" block in simulin...

2 months 前 | 0

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