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**Content Feed**

Question

Why are my filters designed with fdesign so bad?

I am getting very poor bandpass and bandstop IIR filters designed using fdesign.bandpass and fdesign.bandstop, using any of the ...

2 years ago | 0 answers | 0

### 0

answersQuestion

CORDIC help page gives inaccurate results

I am trying to use the code provided at this help page for computing square roots using CORDIC: https://uk.mathworks.com/help/f...

2 years ago | 0 answers | 0

### 0

answersWhy does dsp.CICInterpolator prepend zeros?

I guess this ultimately comes down to how we view the initial state of the integrator stages. If we view the N integrator stages...

3 years ago | 0

Question

Why does dsp.CICInterpolator prepend zeros?

The output of dsp.CICInterpolator is exactly what I expect, except with N zeros padded at the start. What is the idea behind the...

3 years ago | 1 answer | 0

### 1

answerWhy does fread sometimes return incorrect values?

I had a look in a hex editor and noticed that the file somehow contains 9 bytes instead of 8 (with an extra x0d prepended at the...

3 years ago | 0

| accepted

Question

Why does fread sometimes return incorrect values?

I regularly use MATLAB to analyse data generated elsewhere. Most commonly, I work with int16s and single precision floats. Howe...

3 years ago | 1 answer | 0

### 1

answerQuestion

WLAN Toolbox: A-MPDU length is wrong for 802.11ac (VHT) packets?

I am using Matlab 2017a with the WLAN Toolbox. As far as I can see, there is a bug in that the MPDU length is set incorrectly in...

5 years ago | 1 answer | 1

### 1

answerHi guys, I have two randomly generated variables and want to generate the third which is correlated with one of them and uncorrelated with the other. How can I generate such random variable?

With problems like this, I always think it is easiest to start with zero-mean, unit-power uncorrelated random variables. It's di...

8 years ago | 0

| accepted

Can anyone pls help me with the following code;

Your code is mostly correct, just remove the ")" at the end of your 'if' statement: if choice==1

8 years ago | 0

Error question :The expression to the left of the equals sign is not a valid target for an assignment

Try this: % Define a vector of time values dt = 0.01; t = 0:dt:2*pi; r = sqrt(17^2*cos(2*t)+sqrt(6^4-17^4*sin(...

8 years ago | 1

Arithmetic Decoding-Matlab Code

You can use the function *arithenco* to encode: http://www.mathworks.co.uk/help/comm/ref/arithenco.html and *arithdeco* to...

8 years ago | 0

how to rotate right ?

If your binary data is stored in a string, try this: x = '1001011011110100'; x_shifted = circshift(x,[0,4]); Otherwis...

8 years ago | 0

How can I prompt user to press some key on keyboard let us say 'c' in order to continue the program

Try this: clear all; clc; disp('The following assumptions are assumed during execution of the program:'); disp('1. Th...

8 years ago | 0

| accepted

in your LU decomp file exchange, what does the ' character do?

It is the complex conjugate transpose operator: http://www.mathworks.co.uk/help/matlab/ref/ctranspose.html

8 years ago | 2

for loop to sum up the integer

You are executing your 'for' loop for only one value, n. Also, I think you probably want to remove your totalsum variable (it do...

8 years ago | 1

i need a code for for haris corner detection to run in matlab 2012b

Do a web search for "Matlab Harris corner detector" (without quotes).

8 years ago | 0

Question

How does resampling work?

I want to understand resampling better, so I am trying to replicate the functionality of Matlab's resample() function. I get stu...

8 years ago | 0 answers | 0

### 0

answersHelp with Homework please Loops are hard

So, in the first case, you have to add 10 numbers together. In the second case, you have to add 20 numbers together. I'm sure yo...

8 years ago | 3

| accepted

Measuring intensity of sound

Here is the code you need: max_val = max(x); min_val = min(x); mean_val = mean(x);

8 years ago | 0

Sort and keep index of a n-dimension array

As I understand it, you have 2 dimensions of data. You have not specified how you want to sort them (e.g. "along dimension 1"). ...

8 years ago | 0

Question

How is the output size of UPFIRDN determined?

I want to understand resampling better, so I am trying to replicate the functionality of Matlab's built-in upfirdn() function. T...

8 years ago | 0 answers | 0

### 0

answersSum of all odd and even arrays in matrix

From your description, I think you want to do this: b = [sum(a(1:2:end,:)); sum(a(2:2:end,:))] However, I'm not sure why...

8 years ago | 0

| accepted

Finding the frequency value of a signal

Whenever you're interested in frequency content of a signal, the Fast Fourier Transform is often an excellent tool to use (see h...

8 years ago | 6

| accepted