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Amjad Iqbal


CEO SpaceTech

Last seen: 7 months 前 |  自 2018 起处于活动状态

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Working as ESR in MENELAOS Project of MSCA H2020

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How to remove inner edge of the target?
Hello dear MATLAB Experts, I have attached an image of a target. When I apply the "edge" function to this target, I obtain bo...

1 year 前 | 2 个回答 | 0

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How to average values of certain pixels of multiple targets in a 2D data while keeping sign as weights to have one value and sign?
Dear MATALB Experts, I have estimated the velocity of several ships in a scene, and it appears that each ship has a variable ve...

1 year 前 | 0 个回答 | 0

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How to Apply PSF to obtain the difference between two method?
Dear MATLAB Experts, I have output of two methods, qualitatively both perform near similar, however to represent difference I ...

2 years 前 | 1 个回答 | 0

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提问


How to mask the data of no information?
Dear Matlab experts, I need to mask out data with no information and want to keep data for only targets of interest. I have...

2 years 前 | 1 个回答 | 0

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提问


How to select the range of data based on threshold range of our own choice?
Dear MATLAB experts, I want to use only the points corresponding to relatively high amplitudes? (e.g., try -10 to 0 dB or -2...

2 years 前 | 1 个回答 | 0

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提问


How to make 2 for loops code to run faster?
Dear MATLAB Experts; I want to make this part of code to run faster it takes hours to process. there are two for loops which t...

2 years 前 | 1 个回答 | 0

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提问


How to use Eigenvector and Eigenvalues of a matrix to formulate Entropy equation?
Dear Matlab experts, I have a matrix T = [T11, T12 ; T21, T22] of size , where all elements in T are 126*126. After using thi...

2 years 前 | 1 个回答 | 0

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提问


How to obtain the system response from initial signal and final signal? Using Convolution or deconvolution!
Dear Researchers and Matlab Community, I have a query regarding to obtain the system response. In order to obtain the correct...

2 years 前 | 0 个回答 | 0

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提问


How to apply linear least squares fit for two entities?
Dear Researchers, I have two entities namely sigma (dB) and U (m/s) respectively. As given in attach figure, a linear least sq...

2 years 前 | 1 个回答 | 0

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提问


How to reduce the computation time of for loop?
Dear Experts, I have a query regarding my code below, it takes long time to process the loop, could you please guide how to red...

2 years 前 | 2 个回答 | 0

2

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How to Overlap two maps extracted from two methods?
Dear MATLAB Experts, I have a query to overlap two maps extracted from two methods. I have attached .mat file and maps obtaine...

2 years 前 | 1 个回答 | 0

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提问


To select the indices of logical "1" in first 2D matrix, and then replace those corresponding indices in second 2D matrix with logical "0"
Dear Researchers and Programmers, I have 2D matirx with logical 1, and 0. I need to select the indices having logical value 1....

2 years 前 | 1 个回答 | 0

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提问


Replace values to create an image with binary values (0,1)
Dear Researchers, I have a matrix (2D image) which I need to replace values in such a way to obtain binary image. I used M...

3 years 前 | 3 个回答 | 0

3

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提问


Divide a data set (of 201*360) into M*N sub data (rectangular in fourier) and to apply FFT on each sub data sets
Dear MATALB community, I need to divide a data of 201*360 into M*N sub data set which should be rectangular and then apply FFT...

3 years 前 | 1 个回答 | 0

1

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提问


To make faster the implemented algorithm
Dear Experts, I implemented a small algorithm which is very slow and take many hours to generate results. Although algorithm'...

3 years 前 | 0 个回答 | 0

0

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Correlation regression lines between two parameters
Hello dear Researchers, I have a query need your expertise to resolve. I want to add correlation regression for two paramters...

3 years 前 | 2 个回答 | 0

2

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提问


To add rows and columns in the start and at the end for a matrix
Dear Researchers, I need guidance to add rows and columns of ones/zeros in a marix. i.e matrix should be 13642 * 25295, and ma...

3 years 前 | 1 个回答 | 0

1

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提问


How to compute CRLB for parameter estimation?
I need guidance regarding CRLB to compute it for a synthetic signal, given below. X = A*sinc(B*(t-𝜏).*exp(j*2*pi*F*(t-𝜏); wher...

3 years 前 | 0 个回答 | 0

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Using the Monte Carlo to compare estimates doppler centroid under different SNRs
I need assistance using the Monte Carlo method to compare the estimates of two different doppler centroid methods at various SNR...

3 years 前 | 0 个回答 | 0

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提问


To find spectrum line where the energy of its left part is eqaul to right part
I have a data of [M, N] i.e., 64*64. I want to have spectrum where the energy of its left part is eqaul to right part for each ...

3 years 前 | 0 个回答 | 0

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To Apply 2D sliding window on data to calculate doppler parameter rapidly
I need help to merge 2-for loops using filter2 (2D) filter or any suitable way to make my code efficient enough. I want to run ...

3 years 前 | 1 个回答 | 0

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提问


how to Reconstruct full image from 128 patches of 256*256?
I have an image of 128 patches and each size is 256*256, now I want reconstruct image by using these patches. To verify how exac...

3 years 前 | 1 个回答 | 0

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提问


Delay Sum Beamforming of four microphone signals to detect the presence of drone
Hi. I am using four-microphone array, to localize drone. I did localize sound captured by these four-microphone. now my mento...

5 years 前 | 0 个回答 | 0

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The Harmonic Frequencies Estimation
I am working to drone sound detetion. in order to distinguish drone, ifferent fundamental frequencies can potentially used. I n...

5 years 前 | 0 个回答 | 0

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提问


The Harmonic Frequencies Estimation
Hello Researchers, I have data set of drone flying operation, i have localized sound sources that have drone sound and noises...

5 years 前 | 0 个回答 | 0

0

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提问


Estimation of spectral entropy for drone signal detection
I need to find spectral entropy of a signal that have drone sound and some other noises. After localization of sound signal, ho...

5 years 前 | 0 个回答 | 0

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已回答
To find Maximum value and minimum value for each group of four rows for a 1576*1024 matrix
@madhan ravi Thanks for your solution, Actually my query here is that i need to find second maximum value for each multiple fo...

6 years 前 | 0

提问


To find Maximum value and minimum value for each group of four rows for a 1576*1024 matrix
Hello Researchers!! I need guidance, as i have a matrix H1 of 1576*1024, which is vertical concatination of four channels, in H...

6 years 前 | 5 个回答 | 0

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I need help to find main-lobe to peak side-lobe ratio in dB
I need help to find main-lobe to peak side-lobe ratio in dB, and get its plot, to decide threshold for tracking four channel da...

6 years 前 | 0 个回答 | 0

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提问


how remove unwanted angle of arrivals for four channel microphone drone detection system
I need gudance for removing those frames which contain unwanted angle of arrivals i.e refelction from grounds, blue color are ...

6 years 前 | 0 个回答 | 0

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