Sadiq Akbar
I am Sadiq Akbar, a keen learner in Matlab
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Question
MATLAB libraries of DHT11 sensor
@ MathWorks MATLAB Hardware Team If the DHT11 sensor is connected to my Arduino and I want to read the temperature and humidi...
2 mesi ago | 1 answer | 0
1
answerQuestion
Why do upsample and downsample commands give wrong results in start of sequence?
I have a code for upsampling an input sequnce x and then downsampling it back to original by a factor 3. When I look at the plot...
2 mesi ago | 3 answers | 0
3
answersQuestion
Everything being the same, then why does matrix C give different values in the two codes?
All the values are the same in both the codes, then why does matrix C give different values in both the codes? code1: u=[30 50...
3 mesi ago | 1 answer | 0
1
answerQuestion
I want to implement these equations in MATLAB but how?
The equations are given in the attachment. Assume lambda=1. How to implement the given equations in MATLAB?
3 mesi ago | 1 answer | 0
1
answerQuestion
How to separate the MIMO code only from given code?
The given code treats three types of system namly PHASED-ARRAY RADAR, MIMO RADAR and PHASED-MIMO RADAR (K=5). I want to delete t...
3 mesi ago | 0 answers | 0
0
answersQuestion
why the command "figure(gcf+1)" gives error?????
doas=[-30 -5 40]*pi/180; P=[1 1 1]; N=10; %Number of array elements K=1024; %Number of data snapshots d=0.5; %Distance bet...
4 mesi ago | 1 answer | 0
1
answerQuestion
Why this code gives error?
Nc=31; N=5; M=3; K=3; tot_len=200; array_TX =[3.5086 0 0;2.6877 2.2553 0;0.6093 3.4553 0;-1.7543 3.0385 0;-3...
4 mesi ago | 1 answer | 0
1
answerQuestion
Why this code the given error?
close all; clear all; clc; vec = @(MAT) MAT(:); vecH = @(MAT) MAT(:).'; % M = 5; M = 10; N = 4; % N = 10; d = 0.5; K = 3...
4 mesi ago | 1 answer | 0
1
answerQuestion
why this line gives error?
I have a code in which there is an error: %% 212 % Range 213 Range_hat(1) = Ranges(snapstart(1)); 214 Rangebin_hat...
6 mesi ago | 2 answers | 0
2
answersQuestion
What are these commands in Matlab? Can any one explain them with examples. I searched them but didn't find any help
I don't understand the following commands in Matlab. I searched their help but in vain. Can anyone explain them with examples? ...
6 mesi ago | 1 answer | 0
1
answerQuestion
How to generate a Gaussian random complex vector of N elements
How can we generate a Gaussian random complex vector of N elements of zero mean and variance 1 in MATLAB ?
8 mesi ago | 2 answers | 0
2
answersQuestion
How to rectify the error in this code?
I found a code for ESPRIT algorithm as below but it gives me this error: Undefined function or variable 'theatest3'. Error...
8 mesi ago | 1 answer | 0
1
answerQuestion
Covariance matrix as a diagonal matrix or not??????
The literature says that when three signals are uncorrelated i.e., they have different frequencies, then their COVARIANCE MATRIX...
8 mesi ago | 1 answer | 0
1
answerQuestion
Can we use xcorr() for continuous signals
If we have two continuous signals as below: Then can we use xcorr() to find the correlation between them? close all; clc; clear...
8 mesi ago | 0 answers | 0
0
answersQuestion
two coherent and two correlated signals in Matlab
How can we generate two coherent signlas in Matlab? Likewise how can we generate two correlated signlas in Matlab. Furhter how w...
8 mesi ago | 2 answers | 0
2
answersQuestion
Problem in AWGN command
I have two matrices A and xx.. The dimension of the matrix A is 9 x 3 complex double and that of xx is 3 x 500 complex double. T...
8 mesi ago | 1 answer | 0
1
answerQuestion
dividing a diagonal matrix into same and different diagonal elements
I have a diagonal matrix as: V = [ 0.0001 0 0 0 0; 0 0.0001 0 0 0; ...
8 mesi ago | 1 answer | 0
1
answerQuestion
Why do these two codes give different covariance matrices?
1st code: S =[ 0.6661 - 0.7458i 0.4210 - 0.9071i 1.0000 + 0.0000i;-0.9127 + 0.4086i -0.8429 + 0.5381i 1.0000 + 0.0000i;1...
9 mesi ago | 1 answer | 0
1
answerQuestion
Why does this code give error?
clear all close all N=100; fc=1.0e9; fs=20*fc; w=2*pi*fc/fs; n=0:N-1; s=sqrt(1.0)*exp(i*w*n); wn=sqrt(0.1/2)*(ra...
9 mesi ago | 1 answer | 0
1
answerQuestion
Why this code gives error?
clear all close all N=1001; f1=1.0000e9; f2=1.0200e9; fs=4*f1; w1=2*pi*f1/fs; ...
9 mesi ago | 4 answers | 0
4
answersQuestion
How to form covariance matrix of this?
I have a complex matrix as: S = 0.6661 - 0.7458i 0.4210 - 0.9071i 1.0000 + 0.0000i -0.9127 + 0.4086i -0.8429 + 0....
9 mesi ago | 0 answers | 0
0
answersQuestion
How to install a Matlab package offline?????
I have downloaded the following Matlab packages from Mathworks site. 1.Matlab support package for arduino 2-Simulink support p...
9 mesi ago | 1 answer | 0
1
answerQuestion
Why the result of SQP algorithm varies each time when we change the starting point xo?
I have this code for running the SQP algorithm which is as follows: OPTIONS = optimoptions('fmincon','Algorithm','sqp','Display...
9 mesi ago | 1 answer | 0
1
answerQuestion
Why each time algorithm "interior point" is shown in output even if I use different algorithm?
My fitness function is as below: function out=myfitness(b) u = [1 2 3 4]; out1 = u-b; out = sum(out1.^2,2...
9 mesi ago | 1 answer | 0
1
answerQuestion
How to convert this C++ code into Matlab or How can I run this into Matlab
The following is a C++ code of CRO. How can we convert this into Matlab code or how can we run it in Matlab? #include "CRO.h" ...
10 mesi ago | 1 answer | 0
1
answerQuestion
How to write a code for the following?
I have two vectors u=[u1 u2 u3 u4]=[1 2 3 4]; and b=[b1 b2 b3 b4]=[1 2 3 4]; For M=4 and N=3, I want a to get a row vect...
11 mesi ago | 0 answers | 0
0
answersQuestion
how to plot it?
I have the following code. I want a plot between var1 vs e where var1 is along x-axis and ranges from 0 to 10. th=pi/180; b=[v...
11 mesi ago | 1 answer | 0
1
answerQuestion
Error in entropy function
I use the entropy function given belwo for my data, but Matlab gives me an error. e=entropy(x,'shannon') Matlab gives me this...
circa un anno ago | 1 answer | 0
1
answerQuestion
How to put a preview figure window in a main figure window
I have a code that gives me the plot of my data. I want to put the same plot figure as a preview in top left corner of the same ...
circa un anno ago | 1 answer | 0
