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Technical discussion about Matlab and issues related to Digital Signal Processing.
Sending the circuit files to pspice and getting back the analyses results
arbabmasood67 - Sep 2 2010
I am working on some ciruit simulation problem that would require the pspice readable(.cir)file designed in Matlab to be run on PSPICE and the analyses result from PSPICE to be aut... 
Using matlab to find quantile position
"Ye, Xiaoxia" - Aug 31 2010
Given a vector of observations, does matlab have a built-in function to
quickly find the quantile position of each observation?
I tried combining "fzero" and "quantile" to fi... cpsd [4 Articles]
Ibrahim muhammed - Aug 24 2010
Hi folks,
Can anyone help me explain why I get negative cross power spectral density
(cpsd) values? I do my calculations in matlab (cpsd) and I always get positive
values un... plot on image
Ibrahim muhammed - Aug 24 2010
Hi guys,
I'm really stuck on plotting a line on an image. Any help will be highly
appreciated!
1) data=[72 x 154] double
figure, pcolor(data), shading flat;colorbar
... cpsd
Emmanuel Katsogridakis - Aug 24 2010
Hi everyone,
I have a question as well regarding the cpsd function in matlab.
Is it true that the power spectra it returns are not scaled?
Thanks for your time,
... Re: plot on image
Ibrahim muhammed - Aug 24 2010
I got it!
hold on, plot (I,'r'), Done!
Ibra
________________________________
From: Ibrahim muhammed
To: matlab yahoogroups
Sent: Sun, August 22, 2010 3:28:01 PM
... Average Contrast in DoG image
twinklingstars88 - Aug 18 2010
Hi All
I'm doing a project on region of interest detection.
I need to find the average contrast given the maxima and minima of the difference-of-Gaussian images are detected ... covariance matrices with cov() [3 Articles]
Juan Vesa - Aug 18 2010
hi,
i'm trying to verify some other code i've written in c for
calculating the covariance of 2 nxm matrices (n points in m
dimensions (i.e. 3)) using matlabs cov() command,
... data-aided SNR estimate of a complex signal in MATLAB
wcco...@ncsu.edu - Aug 18 2010
I'm working on processing, in MATLAB, some data that I've taken with a communication device we've built. Previously we've done communication with an on-off-keying signal (OOK with ... how to remove zeros at last [1 Attachment] [2 Articles]
arul dsp - Aug 17 2010
Hi all
How to remove how to remove zeros at last
See the pic attached
Regards
Arul
... RE: how to remove zeros at last
Syed Meeran - Aug 17 2010
Hi Arul,
Try out the following
y = fixdec(X,N) where X is the element to be truncated and N is the no of
decimal points.
but why are you using double for the variables tr... residue with symbolic toolbox [3 Articles]
Juan Vesa - Aug 16 2010
hello,
i wish to calculate the partial fraction expansion of:
1/((z-a)(z+3)(z-5))
it doesn't seem like i can do it using the residue() matlab command,
is there any way i ... Blind OFDM Channel Estimation Using FIR Constraints
rola...@gmx.de - Aug 16 2010
Hi everyone,
im currently involved in some research concerning blind channel estimation in ofdm systems. Within this intercourse i stumbled upon the paper
"Blind OFDM Channe... matrices and line drawing.
"lou...@ymail.com" - Aug 5 2010
Hi everyone,
I have a code that plots several matrices (with different numbers) using pcolor.
e.g. A=[1 1 1 2 2 2; 3 3 3 4 4 4; 5 5 5 6 6 6];
pcolor(A)
Basically, I wan... Doubt in Belief Propagation
maha devi - Aug 1 2010
Hi all,
I am currently working on Belief Propagation. I have a doubt while
estimating my beliefs. I need to estimate the r.v "xj's" of a vector "x"
i - function node
j -va... Point cloud
abdul_wasey2 - Jul 26 2010
Hi,
Could anyone please give me some way to make a point cloud from an ascii data in this format x-cordinates, y-cordinates and z-value.
Once I get the point cloud, I am required... why loop element numbers are different?
Yalçýn_ATA - Jul 26 2010
Hi;
I couldn't find where the error is. Loop element numbers are more than
it must be. For example when;
handles.UppWaveLen = 1.53
handles.LowWaveLen = 1.57
loop must be ... Re: calculate wave number
blue...@yahoo.com - Jul 26 2010
> Dear all,
>
> I am working on the PSD estimation of a topographic depth profile.
> The problem that I am facing is that to convert the frequency scale
> to wave... FIR filter implementation
QQ - Jul 26 2010
Hi,
I'm implementing a FIR filter, which likes to be h[k] = (3/k^2 +
5/k)*sinc(k) + sinc^2(k)/k+(1/k^2+7/(2*k))*cos(pi*k).
I'd like to make the sample index k between -10 and ... 90 degree phase shifter for 60Hz
mehm...@gmail.com - Jul 26 2010
Hi,
I’m trying to implement hilbert filter with a narrow ripple and my limited processing power.
TW = 35; % Transition Width 35 Hz
Apass = 0.02; % Passband Ripple (... matlab code for video watermarking
rini...@yahoo.co.in - Jul 26 2010
Hi,
I am doing a project on video watermarking.Is there any matlab code for watermarking embedding and
extraction algorithmn using two dwt transform..Kindly forward it to ... PSD, correct shape, wrong frequency and power frequency axes [2 Articles]
gjfe...@hotmail.com - Jul 21 2010
Hi...
i'm using matlab to calculate de PSD using Welch method from a EEG record. I know that the frequencies goes from 0.5 to 15 or 30 Hz (max), as seen in the following image: ... real time A/D and simulink
Simon Le Blond - Jul 13 2010
Hi there,
I am using matlab simulink's RTW in conjunction with an Innovative
Integration A/D card (X3-SD).
I want to collect data from the A/D and then run my simulink algo... Belief Propagation doubt
mahadevi - Jul 12 2010
Hi all,
My project involves estimating some random vector 'X=[x1,x2....xn]' using the belief propagation algorithm in Matlab. I have a doubt in the initialization part of the a... approximation of numbers [4 Articles]
sadek - Jul 12 2010
How we turn for example 2.0000000000003 into 2 only?
... linking up of a file from desktop to the matlab program
Parthraj Tripathi - Jul 12 2010
Hello peoples!
I have a DFT program in matlab. where I can give mathematical functions such as Sin,cos,and customised ones as input to get the out put.
I feel difficult... shifting frequency of an audiofile using matlab [3 Articles]
mani...@gmail.com - Jul 12 2010
Hi all,
As part of a project, I need different sound samples with different frequencies and amplitudes in them but with all samples obtained by doing signal processing on o... need very urgent help in mimo ofdm
d_sa...@hotmail.com - Jul 8 2010
hello every body ,
I'm building a MIMO-OFDM simulator.
Can I have some discussion with anyone interested in this,please?
For example, I'm buildiing a 4-by-4 or any no of trans... Feature Extraction for classification
Michael Bezenchuk - Jul 8 2010
I'm doing a project dealing with classification
I have database of 4 classes each class have number of samles
you can see the database here (matlab files - smps parameter):
http... VB.Net + Matlab
"fabricio.leinat" - Jun 23 2010
Hi everybody!
I'm trying comunicate VB.Net and Matlab. I'm using the Matlab Builder NE (deploytool command) to generate a DLL from m file, but I'm an engineer, I'm not an expert... TCP/IP sockets for matlab
mark_s_rice - Jun 23 2010
We will need some TCP/IP sockets for talking to our DSP hardware from Matlab.
I see where the Instrument Control toolbox has some support. I also see where some people use some s... Decimation filter magnitude response. [3 Articles]
usu_...@yahoo.com - Jun 23 2010
I designed a CIC decimation filter, and am trying to plot its frequency response. Given below are the specifications of the filter.
Sampling Freq fclk: 1.4MHz
Decimation D: 100... one point for centroid [2 Attachments]
Atefeh Foroozandeh - Jun 20 2010
Hello,
I want to find one (not more )point in my image (I attach it )
that set in the interior circle (you can see in the image)
for my image, regionprops in matlab give more ... FFT comupation Reduction
mortal_f - Jun 14 2010
Hi,
I am trying to use fftfilt and my data contains a lot of zeros. I could recall from memory that if you are performing fft, and ur data contains a lot of zeros, you could reduc... smith macmillan form
manisha - Jun 10 2010
i m not able to calculte the smith macmillan forn of a polyphase decompose matrix.for this i had mimo toolbox but it cannot run without maple .it every time give error of maple fu... Help on vectorization. IIR filter
all4...@yahoo.com - Jun 10 2010
Hello everybody,
I'm trying to vectorize my code to avoid using for-loop operator.
[code]
for k=2:N
x(:,k) = x(:,k-1) + gain(:,k) .* (y(:,k) - x(:,k-1));
end;
[/code]
... How to calculate Relative Power
abdulhaseeb86 - Jun 10 2010
I want to calculate relative power of two signals what is the correct matlab code to do that. Actually one signal is the filtered version of the other, because i want to find the p... Mathlab for eZdsp F2812
"Plongcharoen, Naret" - Jun 10 2010
Hi All,
I have use eZdsp F2812 from Spectrum digital, anyone can advise which version of mathlab and CCS can compatible to eZdsp F2812 from Spectrum digital.
Thanks.
Best ... Build EX problem
Serhat Guven - Jun 4 2010
Hi everyone,
I'm trying to export a function that I've written in Matlab and I want
to use this function in Excel. I'm using Matlab 2009b and Visual Studio
2008 Express Edition... Re: Lowpass filter design [2 Attachments] [3 Articles]
aziz yemen - Jun 4 2010
HERE IS THE CODE WITH SAMPLE FILEÂ ANC COMPARING BETWEEN THE FILTERED ANDÂ NOISY SIGNALÂ
YOU CAN REMOVE WHATEVER IS NOT NECESSARY
Â
[Yo,FS,NBITS1]=WAVREAD('1o.wav'); % re...