Complex input to IFFT to generate real value signal

Started by vcteo in Matlab DSP13 years ago

The statement in the subject is refering to Erich Cosby's tutorial for OFDM. I'm simulating OFDM in Simulink with the aim of later...

The statement in the subject is refering to Erich Cosby's tutorial for OFDM. I'm simulating OFDM in Simulink with the aim of later converting it for a DSP. I use BPSK before the OFDM operation. With BPSK, all my binary inputs would be converted to either 1 or -1 in the IQ spectrum. In Simulink, the outputs contain very small values for the ima


Inputs variables in simulink (workspace)

Started by coutoxxx in Matlab DSP16 years ago 1 reply

Hi When you are in simulink workspace,is there any way to be able to enter [t,u] signals inputs by a m.file? .I have only be...

Hi When you are in simulink workspace,is there any way to be able to enter [t,u] signals inputs by a m.file? .I have only be able to enter them by command line Saludos


adaptive noise cancelling with simulink

Started by suc in Matlab DSP16 years ago 1 reply

Hi, just wondering if anyone has simulink model of adaptive noise cancelling algorithm? I am doing some simulation and facing...

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!


graphics in simulink

Started by alda...@ensieta.fr in Matlab DSP13 years ago

hi everybody, maybe i'm going to ask you a stupid question, but I need help on printing graphics in simulink. When I try to print a graphic I...

hi everybody, maybe i'm going to ask you a stupid question, but I need help on printing graphics in simulink. When I try to print a graphic I have taken with an scope, I get a graphic that is really hard to read because of the light color it uses for lines. I wanted to know if I could change any parameter in order to change the color or anything like that. I have also tried to use the sim...


Re: adaptive noise cancelling with simulink

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

Hi there. I'm trying to implement with LMS algorithm. But I can't make it work at the DSK 6713... Best regards, Pedro > > > >...

Hi there. I'm trying to implement with LMS algorithm. But I can't make it work at the DSK 6713... Best regards, Pedro > > > > With which algorithm? Could you specify your setup a bit more clearly? > I have a setup that i think you could use. > N > > --- In , "suc" wrote: > > Hi, just wondering if anyone has simulink model of adaptive noise > > cancellin


FM in matlab/simulink

Started by lolo_mk1 in Matlab DSP14 years ago

Hi all, I've been trying to run an adjacent channel power ratio simulation in matlab simulink but have been running into problems. ...

Hi all, I've been trying to run an adjacent channel power ratio simulation in matlab simulink but have been running into problems. I'll just outline the parameters im using... modulation signal: 1kHz sine wave @ 57600Hz sample rate FM modulator passband block: 30kHz carrier @ 230400Hz sample rate (so I can see more of the spect


Simulink mapping

Started by asq_smk in Matlab DSP15 years ago

hi all iam doin a communications project on simulink i have to code a binary stream using doubinry line coding then add white...

hi all iam doin a communications project on simulink i have to code a binary stream using doubinry line coding then add white guassian noise then decode it and use some mapping window to check if the decoded signal is right or wrong ie if i sent 011011001 it will be line


simple ofdm simulation by Simulink

Started by ikis...@yahoo.com in Matlab DSP11 years ago 1 reply

hye there..i need help in doing simple ofdm in simulink. this model i refered from demo hiperlan2. the thing is, i can run the simulation with no...

hye there..i need help in doing simple ofdm in simulink. this model i refered from demo hiperlan2. the thing is, i can run the simulation with no errors warning. but in the end, my probability of error is still around 0.5 out of 1. anyone knows? here's my block sets of ofdm. http://www.4shared.com/file/44151590/4df6ea8e/simpleofdm1.html


calculating Eb/No in simulink

Started by steven leo in Matlab DSP11 years ago

Hi, I'm trying to model a partial band jammer in simulink. For that i have used a Band stop filter (IIR elliptic), as a channel to attenuate...

Hi, I'm trying to model a partial band jammer in simulink. For that i have used a Band stop filter (IIR elliptic), as a channel to attenuate the signal for the frequency band being jammed. Now i'm trying to plot the BER vs Eb/No curve using BERTOOL, but i'm facing a problem regarding the calculation of Eb/No. Basically i wud like to calculate the Eb/No of a band stop filter (being used...


Unwrap phase without the use of DSP Blockset

Started by shiyunluvsu in Matlab DSP15 years ago

Hi, i am currently working on a project using simulink to develop a bode plot generator. i would like help in creating an...

Hi, i am currently working on a project using simulink to develop a bode plot generator. i would like help in creating an unwrap function using simulink blocks without the use of the DSP blockset. i am unable to use the DSP blockset for some reasons.


8-PSK simulink simulation

Started by Giovanni Marino in Matlab DSP11 years ago

Hi, I am simulating a 8-PSK modulation in simulink. I am working in base-band, for this reason I obtain a complex number like exp(i*pi/4*k), for...

Hi, I am simulating a 8-PSK modulation in simulink. I am working in base-band, for this reason I obtain a complex number like exp(i*pi/4*k), for each clock period. I want to Upsampling this complex signal, in order to limit the signal bandwith and after I want to filter it with an SRRC (suqre root raise cosin), before sending it in my channel. Well, my problem is that I get this error from ...


Calling a Simulink model from Fortran code

Started by srivastava in Matlab DSP13 years ago

Is it possible to call a Simulink model from a Fortran code? If so, how? Where do I find an example? Thanx Kailash

Is it possible to call a Simulink model from a Fortran code? If so, how? Where do I find an example? Thanx Kailash


RTDX with C6711DSK target using Matlab

Started by mgencarellli in Matlab DSP16 years ago

Does anyone have an example of RTDX with a C6711 DSK, using simulink to transfer data from a C program running on the target to...

Does anyone have an example of RTDX with a C6711 DSK, using simulink to transfer data from a C program running on the target to matlab ? I am specifically interested in the use of the To/From RTDX simulink blocks. Maurizio Gencarelli Royal Australian Air Force


transfer simulink model to .m file

Started by Hany Ferdinando in Matlab DSP18 years ago 1 reply

dear all, I have a problem in making my .m file access simulink model. I have a model and I need some parameter read from that...

dear all, I have a problem in making my .m file access simulink model. I have a model and I need some parameter read from that model after finishing the simulation. I have tried to use get_param() to monitor its status. The objectives is when the status is 'stop', I will conti


Non-Linear function needed

Started by margaritis_n in Matlab DSP14 years ago

I am trying to simulate a chomunnication scheme in simulink. I need to "construct" a non-linear function. I tryed the...

I am trying to simulate a chomunnication scheme in simulink. I need to "construct" a non-linear function. I tryed the function block from Simulink>function>Fcn but seems that it doesnt coorporate well with if-clauses! Using the Matlab help I found that ther


Zero padding problem in Simulink

Started by vcteo in Matlab DSP13 years ago

I have some questions regarding implementing OFDM in Simulink... I'm using BPSK, thus my output after BPSK would be a complex number. ...

I have some questions regarding implementing OFDM in Simulink... I'm using BPSK, thus my output after BPSK would be a complex number. I've splited up the real (16 samples) and imag (16 samples) numbers into 2 matrices. I plan to use IFFT with 64 samples. Except for the DC (sample 1), Nyquist center frequency (sample 32) and the real (13~31) and i


Simulink>DSP Blockset

Started by Bushra Mohsin in Matlab DSP14 years ago

Hello! There is this "Queue" block in Simulink

Hello! There is this "Queue" block in Simulink


how to read wav file in simulink

Started by mahesh kolte in Matlab DSP14 years ago 2 replies

hi can anyone guide me for ...  recording speech in matlab and used in simulink for filtering thanks in advance with...

hi can anyone guide me for ...  recording speech in matlab and used in simulink for filtering thanks in advance with warm regards mahesh __________________________________________________


Query-SIMULINK NN AND GUI

Started by Puya Afshar in Matlab DSP12 years ago

Hello all If you use SIMULINK neural network control demos, you will find that when you are about to open the controller, a GUI window...

Hello all If you use SIMULINK neural network control demos, you will find that when you are about to open the controller, a GUI window opens giving you some options for plant identification, controller design ,etc. I cant find any link between this GUI and a kind of m-file responsible for doing the identification and other tasks. Anybody can help ? Thanks in advance ...


need help bandpass filter in simulink

Started by suc in Matlab DSP15 years ago

Hi,I have a couple of questions see if anyone can help: There are about the simpowersystems of simulink. 1. I couldn't find the...

Hi,I have a couple of questions see if anyone can help: There are about the simpowersystems of simulink. 1. I couldn't find the block reference for "discrete 2nd-order variable-tuned fliter(BANDPASS FILTER)". in this block, there are two input-ports, F and in? what