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Accept 5 answers given by other contributors
Awarded to S. David on 20 Jul 2017
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Question
How to do this efficiently?
Hello all, I have this variable |a[k,m]=max(k*Ts+taup,m*Ts+tauq)| for |k,m=0,1,...,N-1|. I want to find the matrix A where |[...
plus de 10 ans il y a | 2 réponses | 0
2
réponsesQuestion
The max matrix of two matrices
Hello, If I have two N-by-N matrices A and B, how can I find the N-by-by matrix C such that its (m,n)th element is the max of...
plus de 10 ans il y a | 3 réponses | 0
3
réponsesQuestion
Draw Legend in MATLAB
Hello all, I have in one figure 5 cases, and in each case I have 3 curves. I distinguish the curves of a single case by no li...
plus de 10 ans il y a | 1 réponse | 0
1
réponseQuestion
Sparse Recovery Problem Solution
Hello all, I am working on a communication system where I physically have Np triplets {hp,taup,ap}. From these Np triplets I ...
plus de 10 ans il y a | 1 réponse | 0
0
réponseQuestion
How to find the indices of non-zero elements in a matrix
Hello, I have an Na-by-Nt matrix which is sparse, i.e.: most elements are zeros. I want to find the indices of the non-zeros ...
plus de 10 ans il y a | 1 réponse | 0
1
réponseQuestion
Drawing figure in a for loop
Hello all, I have a for loop and I want to see the progress of the figure as the loop goes. Basically the code is like this: ...
plus de 10 ans il y a | 2 réponses | 0
2
réponsesQuestion
How to extract a number of diagonals of a matrix
Hello all, I have an N-by-N matrix. I want to extract the main diagonal and d diagonals to its right and d diagonals to its l...
plus de 10 ans il y a | 3 réponses | 0
3
réponsesQuestion
Transmitting a signal over a LTI frequency selective channel
Hello all, I am trying to transmit a sequence over linear time invariant (LTI) frequency selective channel, and process the r...
plus de 10 ans il y a | 1 réponse | 0
0
réponseQuestion
Definte Integration of a Received Sequence
Hello all, I have the sequence v of length K-by-1. I want to do integration of v over nn*nsamp to (nn+1)*nsamp for nn=0, ...,...
plus de 10 ans il y a | 1 réponse | 0
0
réponseQuestion
Converting a signal to baseband after resampling
Hello, After resampling a passband signal, how can I convert it back to the baseband domain? In particular, I have the follow...
plus de 10 ans il y a | 1 réponse | 0
1
réponseQuestion
Generating random numbers without repitiion
Hello all, How can I generate, say 10, random numbers uniformly distributed between Nmin and Nmax, without repeating any one ...
plus de 10 ans il y a | 1 réponse | 0
1
réponseQuestion
How to do this more efficiently
Hello, I have this piece of code in MATLAB: for kk=0:N-1 for mm=0:N-1 for pp=1:Np ...
plus de 10 ans il y a | 2 réponses | 0
2
réponsesQuestion
Generate Gassian Colored Noise
Hello all, Is there any built-in function in MATLAB to generate a Gaussian noise with a specific covariance matrix R (colored...
plus de 10 ans il y a | 1 réponse | 0
1
réponseQuestion
How can I resample at original rate
Hello, I transmit a signal over a channel that time-scale and time-shift the transmit signal. To generate the received signal...
plus de 10 ans il y a | 1 réponse | 0
1
réponseQuestion
Circular Matrix Decomposition in MATLAB
Hello all, I have this N-by-N circular matrix F. Theoretically, this matrix can be decomposed as F=WDW', where W is the direc...
plus de 10 ans il y a | 1 réponse | 0
0
réponseQuestion
Matched Filter Integration in MATLAB
Hello all, In a communication system I have the following received signal: v(t)=\sum_{k=0}^{K-1}s_k P_k(t)+w(t) where w...
plus de 10 ans il y a | 1 réponse | 0
0
réponseQuestion
How to generate OFDM received signal
Hello, Suppose that the channel impulse response is (written in LateX syntax) h(\tau)=sum_{p=1}^{N_p}h_p \delta(\tau-\tau_...
plus de 10 ans il y a | 1 réponse | 0
0
réponseQuestion
Received signal not on sampling time
Hello all, I have a sequence d of length N samples each of duration Ts. The channel I have will scale the received samples by...
plus de 10 ans il y a | 2 réponses | 0
2
réponsesSC-FDE continuous time transmission in MATLAB
Any help, please.
plus de 10 ans il y a | 0
Question
SC-FDE continuous time transmission in MATLAB
Hello all, I attached a file that contains the math of transmitting single carrier (SC) modulated signal over frequency selec...
plus de 10 ans il y a | 1 réponse | 0
1
réponseQuestion
How to do definite integral in MATLAB
Hello all, I have this function y of t, and I want to find the following definite integral (I am using the LateX syntax): ...
plus de 10 ans il y a | 1 réponse | 0
0
réponseQuestion
Frequency Selective Channel Coefficients in MATLAB
Hello all How can I generate the following channel coefficients in MATLAB, where these coefficients correspond to a frequency...
plus de 10 ans il y a | 1 réponse | 0
1
réponseQuestion
Received Signal in Continuous Time
Hello all, I am trying to do this in MATLAB, and I appreciate any help: I have the transmitted signal in a communication syst...
presque 11 ans il y a | 1 réponse | 0
0
réponseQuestion
FFT in discrete and continous time
Hello all, I have in my code for OFDM system something like fft(x,N)/N. Does division by N in the discrete time equivalent to...
plus de 11 ans il y a | 1 réponse | 0
1
réponseQuestion
Covariance Matrix by Simulation
Hello, I want to check the covariance matrix of a colored noise if it is correct. I started to see how to find the covariance...
plus de 11 ans il y a | 2 réponses | 0
2
réponsesQuestion
How to these permutations?
Hello, Suppose I have a vector of N elements, and I need to find all possible permutations {N \choose n} for n=1,2, ..., N. H...
plus de 12 ans il y a | 1 réponse | 0
1
réponseQuestion
Parsing Bits
Hello, I have say 4 binary sequences arranged in a matrix where the first row contains the first sequence and the second row ...
plus de 12 ans il y a | 1 réponse | 0
1
réponseQuestion
How to do this in MATLAB without for loops
Hi, I have 4 vectors x1, x2, x3, and x4 all of size N-by-1. I need to select two vectors such that their minimum values are t...
plus de 12 ans il y a | 2 réponses | 0
2
réponsesQuestion
Column Circulant Matrix
Hello, How to create the following coulumn circulant matrix in matlab: X= [ x_0 x_{p-1} .... x_{P-L} x_1 x_0 ...
plus de 12 ans il y a | 1 réponse | 0
1
réponseHow would you draw this in MATLAB?
This is my code: clear all; clc; f=10^3.*(0:1000); alpha=(0.11.*((f.^2)./(1+f.^2))+44.*(f.^2./(4100+f))+(2...
plus de 12 ans il y a | 0
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