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Technical discussion about Matlab and issues related to Digital Signal Processing.
piano synthesis in MATLAB PLZ HELP! [2 Articles]
garl...@yahoo.com - Dec 25 2011
Hello,
I have a question about attempting to synthesize a piano in MATLAB. I am very new to MATLAB and DSP in general and my project is trying to create a piano sound using what... 
ode parameter estimation [3 Articles]
Vassily Shvets - Dec 21 2011
Hello,
I'm trying to work through the parameter estimation workshop at "ftp://ftp.colorado.edu/cuboulder/courses/chen5128/ClassWorkshops/Class26Workshop.pdf"
It goes well until... Code Required for Raised Cosine Filter
mans...@gmail.com - Dec 5 2011
Salam
Im Mansoor Mustafa , i'm graduate student. i want to plot the Raised Cosine Filter with following parameters:
Bit Stream : 1, 0, 1
Raised Cosine Roll of F... decimation filter for high order decimation rate
itamare1982 - Nov 21 2011
Hi ALL
I working on application that i need to sample 1.9Khz signal by 1Mhz , its mean 512 OSR - AFTER SIGMA DELTA MODULATION ( FOR SEPARATE the quantization noise from the sign... Converting image from grayscale to RGB [5 Articles]
sajjad_strong - Nov 21 2011
Hi
I am trying to write a Matlab program and having hard time figuring out how to convert back an image which have been converted to gray scale to RGB for instance :
IRG = ... 16 QAM in Matlab
kekl...@gmail.com - Nov 18 2011
Hi,
I have to drew constellation diagram for 16 QAM modulation but I dont know how.
Sampling frequency is 32khz and frequency of a carrier is 8khz. If you need something more as... Question: spectral analysis [1 Attachment]
Roberlanio Melo - Oct 20 2011
Through image = imread (image.tiff), then Y = fftshift applied (fft2 (image)).
Viewed the spectrum through imshow (log (abs (A )),[]) as also by imshow (A, [0 100000]).
The res... looking for a best fit fft algorithm
srin...@rediffmail.com - Oct 17 2011
Hi to all the Gurus here,
Im looking for a fft algorithm which does operations in chunks of memory.
I have a 4k internal memory and im going for a 32k point fft. i assume one p... MATLAB CODE FOR ASK - Correction Required
"kapur.soniya18" - Oct 17 2011
Hello
I got an assignment to generate an ASK using carrier frequency 10MHZ and Digital signal as 110001011
I used below code to generate digital signal which is working as ex... Matlab's BERtool and Theoretical curves for M-FSK
Nandan Das - Oct 17 2011
I am looking at the theoretical performance of orthogonal M-FSK (received
noncoherently) using bertool. The documentation says that it uses Equation
8.66 of Simon and Alouini's "... Phase noise
vidy...@mail.uc.edu - Sep 29 2011
I need to add phase noise to my system of a particular decibel value say 72dBc. Is there a way by which I can directly add this noise to the system like the awgn function in MATLAB... MATLAB Simulink image and video acquisition ?
motamedi24 - Sep 29 2011
Dear All
To deal with MATLAB Simulink image and video acquisition toolbox, do I need to obtain a special webcam or any general purpose webcam that can be purchased domestically ca... cleaning physiological data for FFT
dsjo...@gmail.com - Sep 29 2011
Hi all,
I'm new to DSP and Matlab and come from a non-engineering background (so go easy on me!), and have a few basic questions. As part of my psych studies im tracking the dia... Please help: BER for QPSK in OFDM over Rayleigh matlab code doesn't work.
mazd...@gmail.com - Sep 20 2011
I try to implement the matlab code on BER for QPSK in OFDM over rayleigh channel (with n taps). However the result is a straight line. There must be something wrong in my code but ... Constrained Stability Least Mean Square (CSLMS) algorithm
rira1807 - Sep 8 2011
Hi,
I'm new to the topic of adaptive filters and its implementation in matlab. I want to filtering an 'ECG signal'.
can you help me to implement an adaptive filter using Cons... Noise in ECG data [2 Articles]
talh...@yahoo.com - Aug 30 2011
hi,
I am doing project of ECG acquiring on C5505. I got results successfully on the PC Application. My ECG results are good and their shape matches those available on the rea... cluster graphs
larryrmasterson - Aug 30 2011
Hi,
I have two sets of data which I have done cluster analysis on. I was curious if there is a way to compare two cluster graphs. Specifically, I would like to know what clust... Incorporating errors in correlation analysis
larryrmasterson - Aug 30 2011
Hello matlabers,
I have a set of data in which I want to calculate pairwise correlation coefficients. However, I would like the correlation coefficient to reflect the associate... Correlation for finding peaks
ananta - Jul 20 2011
I have a 32x25 matrix with 800 elements. There are 50 Training bit values, whose locations are known and are fixed in the matrix. The 800 elements are indices which can take up any... Normalized frequency
errabahf - Jul 17 2011
Hi ALL
I will really appreciate any help or suggestion
i am new to MAtlab , i was ploting the data using a code that was making the average of set of data but the plot was ... REED SOLOMON Coding with PSK modulation in Rayleigh fading channel-SIMULINK
Sadaf - Jul 17 2011
hello,
I am modeling REED SOLOMON Coding(n,k)=(7,3) with 8-PSK modulation in Rayleigh fading channel,using SIMULINK.When I use multi path Rayleigh fading channel block, I get this... How to calculate FIR filter coefficients? [2 Articles]
talh...@yahoo.com - Jul 17 2011
hi,
I am trying to implement digital FIR filter in my DSP kit. I don't know how to calculate the FIR coefficients. I know the order, sampling frequency and my signal bandwidth... FIR/ high pass
rezk sonia - Jul 5 2011
Hi,
Â
I want to implement an FIR High pass filter by using FIR1 function . The parameters of the filter are as follows
filter order
normalised stopband frequency
normalised... derivative of (Dirac delta function)
"Dr.K" - Jul 5 2011
Hi everyone, how can i write a first order derivative of Dirac(x)
respect to x.
i know that Dirac delta is derivative of Heaviside. in Fact i had to
solve:
∂u(x,t))/ͦ... component connetions simulink
andrei_taff - Jul 5 2011
Hi!
I can't connect components from Simscape to components from SimPowerSystems. I am trying to simulate a ZCS converter but I can't manage to connect a Mosfet block to a inductor... Help Please ;how plot a curve from (.tif) images ? [2 Articles]
Mustafa - Jul 5 2011
hello everybody
please i need to know how to plot a curve from a series of images with extension (.tif), i'm a new Matlab and i need some examples or tutorial or anything thing ... IIR coefficients from s-domain tranfser function
znll...@yahoo.it - Jun 9 2011
Hi, i need to implement a controller described by an s-domanin transfer function on a DSP microcontroller (C5505 eZdsp). How can I do that?I've found some functions from Signal Pro... Path loss in A&F
Bari - Jun 2 2011
Hi I am working on Amplify and forward protocol; With out path loss my code is working fine but when I add Path loss (even though same path loss in each link, its SER performance b... Getting FIR filter coefficients from transfer function [4 Articles]
Anas Imtiaz - May 31 2011
Hi all,
I'm trying to implement a low pass filter on a microcontroller, getting
coefficients in MATLAB. I have the transfer function in s-domain, so I am
using bilinear() to g... How to convert RGBe to ycbcr420?
Kim Yoonkey - May 31 2011
Hi all
I'm trying to convert RGB to ycbcr420.
but I don't know how to do that,
if one bmp image is converted to ycbcr,I'll try to this code,
ycbcrimage=rgb2ycbcr(RGBimage);
... ECG C5505 interface with Matlab/Simulink
Talha Saleem - May 31 2011
hi,
I am doing ECG on C5505 EVM. i have successfully achieved the ECG. Now i want to interface the DSP with Matlab/Simulink(2010). I have connected the kit through serial port.... SUI channel resampling [2 Articles]
Quoc Lai - May 11 2011
Hello,
Could anyone let me know how I would resampling the generated SUI channel to obtain a desire sampling rate?
Thank you,
Quoc
... How to calculate the bandwidth for the Analog/Digital Modulations?
kira...@gmail.com - May 10 2011
Hi,
I have a few doubts regarding the calculation of bandwidth for various Analog/Digital modulation, please correct me if I have gone wrong
Fm=Frequency of message signal.
... Graphical Input [1 Attachment]
thisara welhena - Apr 15 2011
Hi,
Is there any way to pick some points in a 2Dplot in matlab ?
I have a plot of temperature against depth and time.Where I need to remove some temperature points by clickin... Inverse cumulative distribution function of a gaussian bivariate
rosalba_zarate - Apr 13 2011
Hello Everyone,
I have been searching and searching about "Inverse cumulative distribution function of a gaussian bivariate". I need the formula or the way to do it with matlab or... question about transfer functions in simulink
Anthony - Apr 13 2011
Can someone tell me where I can find a lead transfer function block in simulink or an equivalent please?
... Re: problem in 8psk demodulation-decision region
oa00...@surrey.ac.uk - Apr 6 2011
Well I had a similar challenge with the decision region but not any more. From you code, what you need to do is, when you work out the decision angles (phases)from 0 to pi (anti-cl... How to put mark on an image [2 Articles]
abdul mannan - Mar 15 2011
Dear Friends,
Please take my greeting.
I need to put rectangular mark around a specific pixel on an gray scale image
and write down a numeric value for tha... help with find function
"t.pokerrob" - Mar 15 2011
I have a signal that i have filtered and then used this line of code to find the peaks on the filtered signal x_lp1:
id = find((x_lp1(1:L-2) x_lp1(3:L)))+1
I now need a code... fmcw radar
Ozcan - Mar 15 2011
Hello everyone,
I am trying to plot range-doppler diagram for an fmcw radar.
Here is how I generate transmitted,received and video signal;
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