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Hilbert transform in Octave using remez

Started by Steve Hubbard in Matlab DSP15 years ago


Re: MATLAB for Beginners

Started by comm...@yahoo.com in Matlab DSP15 years ago

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

Started by John Adedapo Ojo in Matlab DSP15 years ago 1 reply

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...

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

Started by seba...@gmail.com in Matlab DSP15 years ago

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

Started by raffaellobonvino in Matlab DSP15 years ago

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

Started by s210...@hotmail.com in Matlab DSP15 years ago

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?

Started by pick...@yahoo.com in Matlab DSP15 years ago

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

Started by acepsut in Matlab DSP15 years ago 1 reply

Good 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

Started by awe peter in Matlab DSP15 years ago 1 reply

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...

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?

Started by ali_khodaie2002 in Matlab DSP15 years ago 1 reply

I 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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