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Discussion Groups
Discussion Groups | Matlab DSP
Technical discussion about Matlab and issues related to Digital Signal Processing.
Solving a system of NONlinear equations
hr21...@bath.ac.uk - Jul 18 2008
Solving a system of nonlinear equations
Hi all,
I have an algorithm that outputs 5 nonlinear equations with
x,y and z as unknowns. e.g. aX+bY+cZ=W
These are represented in ... 
Find values in an a matrix
hr21...@bath.ac.uk - Jul 18 2008
Hi all
I was wondering if there is a way to search within a matrix
of 2x10
This search would point out a value which has
repeated within the same row 3 times. This value
cou... impulse response of the channel
Mohammed Ali - Jul 17 2008
Hi
I want to get only the impulse response of the following channel with characteristics :
P=[0 -10 -20 -25]; power in each tap in dB
K=[4 1 0 0]; Ricean K-faztor
tau=[0 ... converting variable sampling rate to fixed rate [2 Articles]
cban...@gmail.com - Jul 17 2008
I am working with a signal that was sampled at a variable rate and consists of an array of values and a separate array of sample times. The sample intervals are random and are not... Serial Communication - Binary Data
Ashwini V - Jul 17 2008
Hai Frnds,
I am trying to establish serial communication between 2
computers. I am able to send the binary data successfully
which i am able to receive properly in hypertermin... impulse response of the channel
Mohammed Ali - Jul 13 2008
I want to get only the impulse response of the following channel with characteristics :
P=[0 -10 -20 -25]; power in each tap in dB
K=[4 1 0 0]; Ricean K-faztor
tau=[0 0.5 0.8 0... laplace inverse
azadeh ahmadi - Jul 13 2008
Hi,
do you have any idea,, there is any other solution method rather than ilaplace function , in
odrer to solve (laplace inverse) fractional problems with high power such ... How to compare two different sinusoid signals ?
mig_ruivo - Jul 11 2008
Hi,
I want to compare two different sinusoid signals, A and B. I want to
know if they are equal in amplitude, offset and frequency. But the
comparison between A and B is in... Serious Help needed in Matlab programming [2 Articles]
jain_nisha61 - Jul 11 2008
Hi All,
I need some serious help i am suffering from a issue from long time i
need to following to accomplish
array1 [ ['ajhhdeu'] ['heihi']]
['hewrh '] []
th... message
hete...@gmail.com - Jul 9 2008
Hi
I have the problem when I am trying to use the lsqnonlin function, I do not know how to increase the Options.MaxFunEvals and also I do not know why it is ignoring the low... Unexpected oscillations in the impulse response [2 Articles]
kamr...@gmail.com - Jul 9 2008
Hi all! My question is about getting the impulse response from the transfer function of a system.
I have simulation data for the transfer function of an LTI system. I make the ... Help is needed to read MRI image [2 Articles]
osama omar - Jul 8 2008
Dear all,
I wonder if someone have experiance to read MRI images (.ima or .imh) using matlab.
thanks
... Matrices and array combinations
hr21...@bath.ac.uk - Jul 7 2008
Hi all,
I'm not sure which is the most efficient way and 'fastest' that would deal with these issues.
Say you have:
M= a matrix of 5x3 =[x, y, z];
I want to have 3 rows a... pulse shaping by raised cosine filter
mahboobeh gharib - Jul 7 2008
Hi
I have a question about pulse shaping by the raised cosine filter.
I select roll-off factor = 0.2. Fs/Fd=4 , delay= 9 , 10 , 11 , 12 , ...
I increase the length of the fil... Sound level in Simulink
dumitrupop - Jul 3 2008
Hello,
Here is what I have to do:
1. Get a live signal in Simulink using a sound card / dSPACE card
2. Using band pass filters, obtain band BF1,BF2,...,BFn
2. Calculate the sou... error in rgb2gray using mmreader [2 Articles]
Norizan Mohamad - Jul 3 2008
Dear gurus,
I encountered the following error when attempting to read an avi movie. Is
it because I did not use the loop to read each frame? I seek your help in
rectifying th... SNR, SINAD, THD, and SFDR of an ADC output using Matlab
Mich...@gd-ais.com - Jul 2 2008
Hello, I am trying to analyze some data from an ADC output (although we don't have the ADC yet and I'm using Matlab to generate a theoretical output). We are putting a signal with... System of equations in Matlab - difficulty - TDOA [2 Articles]
hr21...@bath.ac.uk - Jul 2 2008
I am trying to solve a system of equations, there are
three unknowns (x,y,z) outputed at the end of the code
as solX, SolY and solD.. for some reason, I keep getting
incorrect a... About "cov" function in MATLAB?
meydey_82 - Jul 1 2008
Hi all!
I'm trying to realize the work of Sadjadi named "A full plane block
kalman filter for image restoration". In this paper, there is a
section to find a parameter named "... Repetition Code on Matlab [2 Articles]
helo...@in.gr - Jun 30 2008
Hello everybody!
I am a new user of MATLAB. Can anybody guide me how to do Repetition Code on Matlab?
We have(8,1,8) that’s is n=8, k=1, d=8, 2^1=codewords
if we put in ... help regarding this simulation of Wlan
vijay - Jun 30 2008
http://rapidshare.com/files/126125271/sim_wlan.zip.html
i've downloaded this model from the simulink web site only change whihc
i've made is change the channel type from multich... Simulink - Induction motor
Carlos Silva - Jun 30 2008
Hello,
My question is how can i simulate a induction motor and define the slip in
simulink.
I want to get it work in nominal condiction, including slip.
Thank you for your ... ifft in matlab [3 Articles]
edu_forme - Jun 29 2008
i want to compute the ifft of the following data
data=[0 1 1 0]
in matlab it should return me a single value but it is giving me a
column of values can anybody explain th... Re: DSP programming with simulink
suji...@rediffmail.com - Jun 29 2008
It is indeed possible to program the DSP using SIMULINK and MATLAB real time workshop. RTW will generate the necessary .out file which can be downloaded to the DSP. When you say "s... laplace inverse
azadeh ahmadi - Jun 28 2008
Hi,
I am a new member of this group. I am trying to gain inverse laplace of
(1/((TR*s+1)^NR*(Td*s+1)^3*Nd)) (by order of ilaplace)
TR=11.2/NR Td=12.23/Nd
... import file problem [2 Articles]
Cagin Kandemir Cavas - Jun 27 2008
Hello,
Is it possible to run a Matlab code that use a data file which is obtained from an another Matlab file? Suppose you have two file, file-1's output is a dataset(randomly co... OFDM System
Moayid Ahmed - Jun 25 2008
Hi,
I'm new member in this group. I'm trying to do MATLAB code for OFDM Tx and Rx and measure and plot all the system parameters like BER, PAPR, Synchronization, Channel Estimatio... Fourier Transform Plot in MATLAB Symbolic
Amin Mohaghegh - Jun 24 2008
I used fourier command in Symbolic toolbox and got "
i*pi*(dirac(w+1)-dirac(w-1))". I am wondering how I can plot this as a
function of w?
Can anyone help me with that
than... from signal constellation to sinc function in OFDM
edu_forme - Jun 24 2008
i want to investigate the relationship between the signal
constellation and the sinc function in OFDM signal
i have derived like this
FOR EXAMPLE i want to see the effect... Two matlab questions from a beginner
holm...@gmail.com - Jun 23 2008
Hello
I'm sure there is a simple fix to my problem(s).
I am using the uigetfile function to load in a .txt file. Following a few operations I would like to save a new variabl... How to play wma audio file in Matlab?
cnndt - Jun 22 2008
how to play this .wma audio file in matlab and convert into .mat file?
thanks
... Point tracking
altahir_alnagar - Jun 20 2008
Good day everyone. I am currently doing my thesis on Human motion
analysis and I need tips or m file for point tracking if anyone could
help me out with the code or even tips. Th... computational complexity estimation using MATLAB
#ARIJIT BISWAS# - Jun 20 2008
Hi MATLAB lovers:
I know that MATLAB profiler can be used to check the computational bottleneck.
Is it also possible to use the profiler to calculate the computational comple... Add noise at bandpass
cpsh...@rediffmail.com - Jun 19 2008
Hi
How do we add noise at bandpass?
my system parameters are Fc=12KHz, Fs=48KHz, B=4KHz and rate 1/2 convolution code.
So how do we generate bandpass noise and scale with ... I need more information about the resample command
sys7...@yahoo.com - Jun 18 2008
Can anyone direct me to a good reference on learning how Matlab processes data via either the "resample" command or the "interp" command in the Signal Processign Toolbox? I need t... Need a robust algorithm
sandhya nageswaren - Jun 18 2008
Hi all,
I am working on particle analysis and I am trying to automate cell count. I came up with an algorithm which first filters the noise , then does segmentation, closes ... OFDM simulation (without using FFT)
Oluyemi Omomukuyo - Jun 17 2008
Good day everyone. I am currently doing my thesis on OFDM and my
supervisor wants me to simulate continuous-time OFDM (i.e without
using FFT). I've been able to simulate it using... Very long filters and responses
GLIT...@GMX.DE - Jun 17 2008
Hello,
I am kind of new to DSP, however part of my bachelor's thesis is about crosstalk cancellation as it pertains to binaural audio.
The problem I'm having is with designing ... Calculation of physical power using MATLAB FFT [6 Articles]
kamr...@gmail.com - Jun 14 2008
Hi all! I am an electromagnetics person and don't have a strong hands-on experience of signal processing. I have a basic question that I shall be happy to get some answers to.
I... Noise Cancellation using Neural Network
duckola53 - Jun 12 2008
Hello,
I am using Matlab for my project involving Noise cancellation in
Speech using Artificial Neural Network. Im new to matlab and just
trying to find my way about it. I am ...