Hi, I am facing problem with fm modulation and demodulation. i want to design a fm modulation with the following specs: fm = modulating...

Hi, I am facing problem with fm modulation and demodulation. i want to design a fm modulation with the following specs: fm = modulating freq = 30Hz fc = carrier freq = 10kHz dev = frequency deviation = 480Hz The problem is that for the carrier freq more than 1kHz, is not getting modulated properly which can be confirmed at demodulation. Plz find below the matlab code: -----------------...

Hi all; I have some image processess and want to show these images by selecting from popup menu. In the given picture popup menu is given and...

Hi all; I have some image processess and want to show these images by selecting from popup menu. In the given picture popup menu is given and program codes as below. Could you please explain where is my mistake. Thanks. % --- Executes on selection change in IMG1Popup. function IMG1Popup_Callback(hObject, eventdata, handles) % hObject handle to IMG1Popup (see GCBO) % eventdata reserve...

I want determine the picture with the highest mean from a set of images loaded into matlab as matrix. The code is below. I want to know the exact...

I want determine the picture with the highest mean from a set of images loaded into matlab as matrix. The code is below. I want to know the exact picture with the highest mean so as to make it as a basis for further calculation. This should be printed out. for k = 1:length(jpegFiles) % loop to run large number of pictures filename = jpegFiles(k).name; data = imread(filename); y = mean(mean...

I'm working with about 1000 images, which are read into matlab as matrix. But due to variation in the intensity of light(weather condition, AC...

I'm working with about 1000 images, which are read into matlab as matrix. But due to variation in the intensity of light(weather condition, AC light) during the time the pictures are taken, there is a variation in the pixel value reported in the images. I want to make all pictures to have the same brightness. This means if I should index the image matrix at a point, all the images should have the ...

Greetings everyone in the group. This is my first message. I am not a DSP engineer but a programmer with a very limited knowledge of filters. I...

Greetings everyone in the group. This is my first message. I am not a DSP engineer but a programmer with a very limited knowledge of filters. I am writing in the hope that someone can help me with his/her expertise in the following problem: I have a butterworth filter implemented in software.(C++) So far it works exactly the same as the functions: butter() and filter() in Matlab. Therefore wh...

Hi all. Please?i have a problem to solve. In my?signal processing through a multipath channel, i need to introduce awgn but i also realize that...

Hi all. Please?i have a problem to solve. In my?signal processing through a multipath channel, i need to introduce awgn but i also realize that the lower the SNR introduced the more?the BER.?I need to filter out this noise. Can anyone please help me?out?as per how to go about it in matlab. Thank you.? ?Correspondence Address: Awe, Olusegun Peter Electronic & Electrical Engineering Dept. Obaf...

hi. frist of all,i'm sorry for my poor english. i need your help.i;m working on 'formant detection via LPC method'.i've found a site that...

hi. frist of all,i'm sorry for my poor english. i need your help.i;m working on 'formant detection via LPC method'.i've found a site that done this project via matlab.but i want to write it in c.i cant understand it's algorithm.can you help me.please,nobody answer me Formants Detection via LPC Method LPC % NAME % spLpc - The linear predictive coding (one-step finite observation % ...

Hi All, I'm trying to do a stem plot within a MATLAB GUI as follows: 1. Plot one stem (stem1) 2. Plot a second stem (stem2) on the same...

Hi All, I'm trying to do a stem plot within a MATLAB GUI as follows: 1. Plot one stem (stem1) 2. Plot a second stem (stem2) on the same axes figure 3. Plot a third stem which replaces stem2, but stem1 is retained on the graph 4. Repeat step 3, each stem replacing the previous one, while stem1 is retained on the graph I think I have managed to hack something together that half works. It...

Dear all Hi There is different results in the imaginary parts of Matlab FFT function and my own function. where is the error come from? her is...

Dear all Hi There is different results in the imaginary parts of Matlab FFT function and my own function. where is the error come from? her is the code: clear all close all clc x=[3 2 1 1 2]'; N=length(x); n=0:N-1; y=fft(x); % matlab function %----------------------------------------- %this part contains my own function k=n; X=[]; for a=1:length(k) Xk=x'*exp(-j*2*pi*n'*k...

Hi Dear I am wondering if anybody would know how to fit a set of data (x, y) with a custom equation. The equation...

Hi Dear I am wondering if anybody would know how to fit a set of data (x, y) with a custom equation. The equation is: y=k*{2*(a-b)-(sin(2*a)-sin(2*b))}, where 'a' and 'b' is function of 'x' but both 'a' and 'b' have separate boundary conditions. In effect, the angle 'a' and 'b' has a phase difference. 'k' is a constant. I really appreciate your reply. I would like to know if i could us...