FSK modulation and demodulation

Started by vd.a...@yahoo.co.in in Matlab DSP10 years ago 3 replies

Hi, I am new to digital communication area. I want to FSK modulate my .wav file and also demodulate it in matlab (& also in simulink). After...

Hi, I am new to digital communication area. I want to FSK modulate my .wav file and also demodulate it in matlab (& also in simulink). After going through matlab documentation and demo, i found that FSK modulator (in simulink or in matlab) accepts only binary data (zero's and one's) as input. I am unable to convert my .wav file into binary as it is already in integer format also includes neg...


Simulink and log10 function

Started by c r in Matlab DSP16 years ago 2 replies

I am doing some analysis on an fft function inside simulink, that requires me to take the log10 of the incoming signal.  My input...

I am doing some analysis on an fft function inside simulink, that requires me to take the log10 of the incoming signal.  My input signal is a wav file and so the first frame is always zero, so when I want to take the ifft of the log10 function, I get an error and invalid data for the first frame. 


LPC in Simulink?

Started by kukk...@gmail.com in Matlab DSP13 years ago

How do I use LPC block in Simulink to estimate my signal and then reconstruct rhe original signal? From the LPC block I get the linear prediction...

How do I use LPC block in Simulink to estimate my signal and then reconstruct rhe original signal? From the LPC block I get the linear prediction polynomial coefficients and error coefficients, and I should be able to construct original signal from these losslessly. Any help appreciated.


Change Background Color of diagrams in Simulink Scope

Started by Zeinab Ghofrani in Matlab DSP14 years ago

Dear friends How can I change the background color of the diagrams shown in Scope block of Simulink? The difalt color is...

Dear friends How can I change the background color of the diagrams shown in Scope block of Simulink? The difalt color is black. Thanks Zeinab Ghofrani


Read File in Simulink, piece after piece

Started by ion....@gmail.com in Matlab DSP11 years ago

Hello all, I am a beginner with simulink, and I would like to know how could I generate a block which gives as output the samples of a stored...

Hello all, I am a beginner with simulink, and I would like to know how could I generate a block which gives as output the samples of a stored data. I have this data stored in a binary file (file_name.bin) and each byte of the file represents a sample. The thing is that I can not load the whole signal to the workspace, because it is 1 GB. Is there any way to make this block to read the ...


GSM physical layer simulation

Started by nmafzal in Matlab DSP14 years ago

Hi, I am new to the MATLAB environment, my project is to make a GSM physical layer simulation using Simulink. I am stuck on speech coding,...

Hi, I am new to the MATLAB environment, my project is to make a GSM physical layer simulation using Simulink. I am stuck on speech coding, there aren't any commands or tools for GSM speech coded RPE-LTP in MATLAb or simulink, Can anyone help please? any ideas, thanks Nauman


Re: adaptive noise cancelling with simulink

Started by biom...@yahoo.com in Matlab DSP13 years ago

hi > simply u can go to the help of matlab and read every thing about adaptive noise cancelation and go to matlab demos and lookfor...

hi > simply u can go to the help of matlab and read every thing about adaptive noise cancelation and go to matlab demos and lookfor daptive noise cancellation u will see the simulation. ( b...@yahoo.com) > > > Hi, just wondering if anyone has simulink model of adaptive noise > cancelling algorithm? I am doing some simulation and facing problem > with it. need help. Thanks! >


Getting handle of root object from c#

Started by Karve, Ajit in Matlab DSP13 years ago

Hi, I'm trying to access Simulink from c#. 'sfroot' command returns the handle to the root object. But, when I'm executing the...

Hi, I'm trying to access Simulink from c#. 'sfroot' command returns the handle to the root object. But, when I'm executing the same command from c#. It's returning me the string "simulink.root". I explicitly tried type casting this with object and also tried creating an object thru reflection in .NET, but no success :( Here's the piece of code: MLApp.MLAppC


Discrete modified PI control system simulation

Started by eduardo1gonzalez in Matlab DSP13 years ago

Hi, I'm triyng to simulate a discrete modified PI control system in Simulink as blocks of z-transforms but the plant that is going to be...

Hi, I'm triyng to simulate a discrete modified PI control system in Simulink as blocks of z-transforms but the plant that is going to be controlled is a continuous one. So I need to sample the output of the plant(the controlled variable) in order to use this sampled signal as an input to the discrete controller. I've heard this could be done by using the "clock" block of Simulink but...


Re: DSP programming with simulink

Started by suji...@rediffmail.com in Matlab DSP11 years ago

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...

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 "simulation", are you actually downloading the .out file to the DSP or are u doing a HIL(hardware in the loop simulation)? If you are actually downloading the program on the DSP, then i see no reason for the DSP to stop...


about simulink

Started by guhan in Matlab DSP15 years ago

hi friends, i just want how to find the power factor of a circuit and how to use fuzzy logic toolbox in simulink   ...

hi friends, i just want how to find the power factor of a circuit and how to use fuzzy logic toolbox in simulink   Yahoo! India Careers : Over 5


Custom Board

Started by Adrielle de Carvalho Santana in Matlab DSP10 years ago

Hi, I'm from Brazil and I'm using the MATLAB to generate a code for my DSP with the model that I have in Simulink. My DSP is a Blackfin 537 of...

Hi, I'm from Brazil and I'm using the MATLAB to generate a code for my DSP with the model that I have in Simulink. My DSP is a Blackfin 537 of Analog Devices. I need some information about the block Custom Board in Simulink the I use to generate a project in Visual DSP++. I create a subsystem with my controller and I use the Custom Board inside this subsystem. What I needed to know, is if t...


matrix source with a basic two input simulink model

Started by Vassily Shvets in Matlab DSP13 years ago

Hello, I am interested in altering a model that I've put together and run earlier using simulink. It's simply a two-input plant, with...

Hello, I am interested in altering a model that I've put together and run earlier using simulink. It's simply a two-input plant, with scope output; earlier I'd had a sine wave input, but I would like to change to a matrix(from file) as source. So I've taken a matrix from the 'source' collection, and attached it to the main part. The para


Queue block in SIMULINK library

Started by Gisela in Matlab DSP13 years ago

Hello all, I am facing a problem with the Queue block provided in SIMULINK signal management library. From the Help guide it is said that...

Hello all, I am facing a problem with the Queue block provided in SIMULINK signal management library. From the Help guide it is said that it could accept scalar, vector, or matrix input. However when I tried to input a 1x9 (same when I tried 9x1) data, it prompts error message saying that it only accepts scalar input. I could not find any configuration which could help, can Queue block acc...


Re: LPC in Simulink?

Started by Jeff Brower in Matlab DSP13 years ago

Kukkoja- > How do I use LPC block in Simulink to estimate my signal and then > reconstruct rhe original signal? From the LPC block I get the...

Kukkoja- > How do I use LPC block in Simulink to estimate my signal and then > reconstruct rhe original signal? From the LPC block I get the linear > prediction polynomial coefficients and error coefficients, and I > should be able to construct original signal from these losslessly. > Any help appreciated. LPC is not a transformation; it's an algorithm that models the input signal as pe


matlab to simulink conversion & using DSP Builder...........

Started by "guru.koti" in Matlab DSP11 years ago

Hi all, I am currently coding some algorithm for DSP Application,(academic project)... I am thinking to implement the same algorithm on the...

Hi all, I am currently coding some algorithm for DSP Application,(academic project)... I am thinking to implement the same algorithm on the DSP Development Board(EC2C70N)... I am able to debug the results for my matlab code(.m file).. As i come to know that to implement onto DSP Development board, it has to be in "SIMULINK" ... Is it true? Is there any other method, from where i ...


QPSK Spectrum in simulink

Started by dpas...@gmail.com in Matlab DSP10 years ago

Hi everyone. I just want to plot the QPSK baseband spectrum from the output data of the QPSK simulink block. However the output of this...

Hi everyone. I just want to plot the QPSK baseband spectrum from the output data of the QPSK simulink block. However the output of this block are the symbol coordenates in the signal space and when I use "spectrum scope" i don't get the theorical spectrum for the qpsk (the sinc function..). How can I do it? Can I use the qpsk block? thanks in advance!


error on sample time in simulink

Started by domi...@gmail.com in Matlab DSP12 years ago

dear all, i'm a college student that recently doing my final task about smart antenna on 802.16e standard.i'm using simulink to built my model...

dear all, i'm a college student that recently doing my final task about smart antenna on 802.16e standard.i'm using simulink to built my model before i generate my model code for implementing on tms320c6713. when i run my model to verified my channel block there was one error message : "The periodic sample time 2866005830.90379 is not allowed because the ratio of this sample time over base rat...


Fixed Point & S - Function !!

Started by Ahmad El-Saied in Matlab DSP14 years ago

Hi All, i hope i can declare what i need . in order to implement the system using fixed point presentation we should run the system on...

Hi All, i hope i can declare what i need . in order to implement the system using fixed point presentation we should run the system on simulink "we couldn't find a away to present sys with fixed point within ordindry m file if there was a way we hope to know it" . so to convert our m-file functions into simulink blockes w


combine 2 scalar signals into 1 vector signal in simulink

Started by Hrishikesh Venkataraman in Matlab DSP16 years ago 2 replies

Hello, How do I combine 2 scalar signals ( outputs from 2 baseband modulation blocks) into 1 [2 * 1] vector output in...

Hello, How do I combine 2 scalar signals ( outputs from 2 baseband modulation blocks) into 1 [2 * 1] vector output in simulink. I have tried to use merge block but it gives me error saying tht the basband modulation block output is not persistent to be combi