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Re: MATLAB for Beginners
I think it would be better if you include a section on GUI development Just my suggestion > Hello: > > I would like to let you know of my...
I think it would be better if you include a section on GUI development Just my suggestion > Hello: > > I would like to let you know of my new book on MATLAB which was > published recently: > > MATLAB for Beginners: A Gentle Approach > by Peter I. Kattan > > This book is written for beginners and students who wish to learn > MATLAB. One of the objectives of writing this book is to introdu
Divide image into sub-images
inHi all, I am working on image pre-processing. So, in trying to implement a method described in a journal paper, I tried to divide an image into...
Hi all, I am working on image pre-processing. So, in trying to implement a method described in a journal paper, I tried to divide an image into subimages and perform some preprocessing. the challenge was that the pixel info are not being copied into the new sub-images, they are just plain. Please help
my first ofdm
Hi guys this is "my first" ofdm code.could you tell me how it is and how to add the cyclic prefix? Another question is: in the function ifft...
Hi guys this is "my first" ofdm code.could you tell me how it is and how to add the cyclic prefix? Another question is: in the function ifft should i insert the IFFT SIZE? %--------1---------2---------3---------4---------5---------6---------7---------8 % OFDM Simulation clear all; close all; % % Basic OFDM system parameters % - choice of defaults or user selections % fprintf ('OFDM...
DOA estimation using SVD algorithm in Matlab
Hi all. I'm a student from Italy. I'm working on a project for an exam at the university. As a matter of fact I'm trying to realize the DOA in...
Hi all. I'm a student from Italy. I'm working on a project for an exam at the university. As a matter of fact I'm trying to realize the DOA in Matlab for a linear antennas array trough the SVD algorithm. The first columns of the V matrix will be the steering vector while the zeros showed by the other column will realize the DOA. So this is the scenario: there is a linear array capturing two signal...
spectrum of harmonic sinusiods by using FFT
Hi all I have three cos' (x1, x2, and X3)and I want to plot the spectrum of them by using the following matlab code. after I plotted the...
Hi all I have three cos' (x1, x2, and X3)and I want to plot the spectrum of them by using the following matlab code. after I plotted the spectrum I got three sincs but with small diffrent peak value! my quetion: why the three sincs do not have the same peak value, with shift only? Thanks in advanced ------------------------------------------------ matlab used code: N=24; n=0:N-1; %x1...
Does dct2 function perform quantization and compression?
Hello group, I am new a DSP novice and am trying to understand the DCT. I have a couple of questions. My understanding of the DCT is that there...
Hello group, I am new a DSP novice and am trying to understand the DCT. I have a couple of questions. My understanding of the DCT is that there are three steps 1) DCT 2) Quantization 3) Compression (zig-zag style like JPEGs). Does the dct2 function perform all of these functions automatically so or just the first step? Some context of what I am trying to do: Extract features from li...
Capon and Apes spectral estimators
inGood morning, I am interested in implementing Capon and Apes as spectral estimator, my target is to get as more accurate as possibile periods...
Good morning, I am interested in implementing Capon and Apes as spectral estimator, my target is to get as more accurate as possibile periods (freq's), amplitudes and phases from a daily sampled data serie. I'd like to compare fft results with Capon and Apes, does anybody knows how to use such methods in Matlab? Thanks, Alberto a...@gmail.com
Phase shifting a signal
inHi all,Please i am working on a signal that takes the form of a quadratic function say, for example ? f(x) = 3x^2 +5x +1. i need to generate the...
Hi all,Please i am working on a signal that takes the form of a quadratic function say, for example ? f(x) = 3x^2 +5x +1. i need to generate the same signal but with phase shift (i want to introduce phase shift to the function f(x)). Can some please help me out? Correspondence Address: Awe, Olusegun Peter Electronic & Electrical Engineering Dept. Obafemi Awolowo University, Ile-Ife...
how can I have a dct transform of this image?
inI have an image . how can I have a dct transform of this image. I want to access to dct coofisients.
I have an image . how can I have a dct transform of this image. I want to access to dct coofisients.
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