Hi to All, I am a new member of matlab, and have some questions about noise cancelation. I have 2 sequences, which names are x(n) and y(n)....

Hi to All, I am a new member of matlab, and have some questions about noise cancelation. I have 2 sequences, which names are x(n) and y(n). corelation with 2 sequences are: corr2(x,y)= 0.68 x(n)= m(n) + e(n) ,vector length is N=730x1-------> yesterday datas y(n)= m'(n) + e'(n) ,vector length is N=730x1-------> today datas e(n) and e'(n) are the thermal noise and these are corelated, b

Hi , I am working with 16-QAM transmitter/receiver . The problem is I encounter some extra symbols after downsampling ( INPUT - 1000 SYMBOLS ,...

Hi , I am working with 16-QAM transmitter/receiver . The problem is I encounter some extra symbols after downsampling ( INPUT - 1000 SYMBOLS , OUTPUT-1012 SYMBOLS). Let me say in detail. I send 4000 bits/s -> *QAM Coder* -> 1000symbols/s -> *upsampling* (factor=8 , length becomes 8000 samples) -> *Transmit SRRC* ( delay 6, filter length = 97 samples) -> *pulse shaped output* (length = 809

hii check this code.... 1 function coeff_corr = correlation(i,j) 2 s1 = i - mean2(i); 3 s2 = j - mean2(j); 4 gamma_s1_s2 =...

hii check this code.... 1 function coeff_corr = correlation(i,j) 2 s1 = i - mean2(i); 3 s2 = j - mean2(j); 4 gamma_s1_s2 = sum(sum(s1.*s2)); 5 gamma_s1_s1 = sum(sum(s1.*s1)); 6 gamma_s2_s2 = sum(sum(s2.*s2)); 7 coeff_corr = gamma_s1_s2/sqrt(gamma_s1_s1* gamma_s2_s2); in above code it shows following error ...please help me out Input argument "i" is undefined. Error in ==> co

I have to generate NRZ I tried this cod but there are some errors. Any one can help me % Initialize system parameters Fs = 10000; ...

I have to generate NRZ I tried this cod but there are some errors. Any one can help me % Initialize system parameters Fs = 10000; % Sampling frequency (Hz) Rs = 100; % Symbol rate (Sps) nSamps = Fs/Rs; % Number of samples per symbol Trise = 1/(5*Rs); % Rise time of the NRZ signal Tfall = 1/(5*Rs); % Fall time of the NRZ signal frameLen = 5000;...

Dear All, I hope my mail will find you in a very good health. I need your kind help. Actually I need to add AWGN to the encoded signal of...

Dear All, I hope my mail will find you in a very good health. I need your kind help. Actually I need to add AWGN to the encoded signal of video sequence generated by JM S/W (test.264) coded bitstream. I need to read this form a folder on my PC. Then I need to do BPSK modulation and then add AWGN to test.264 coded bitstream and then demodulate the signal and save it on PC as bitsream again (te...

Hi, I am working on the 16-QAM modulator & demodulator. I need some help in that. 1.I want to find the received energy per symbol Es. I...

Hi, I am working on the 16-QAM modulator & demodulator. I need some help in that. 1.I want to find the received energy per symbol Es. I read in a book that we can transmit one single symbol and calculate the received signal energy(sum(x.^2))to find the energy per symbol.But in 16 qam I have two different energy level 1 and 3 .so how do I do it? 2.I want to scale my carrier and filter ga...

Hi, I am new on this website, in DSP, and almost in Matlab :) I have to do a project about audio signal processing. Form the moment our...

Hi, I am new on this website, in DSP, and almost in Matlab :) I have to do a project about audio signal processing. Form the moment our subject is not so precise, we have first to get familiar with principal DSP tools, and then we will try to find a interesting subject. We are thinking about subjects like basics speaker/speech recognition, analyze of the differences between male and fema...

Hi all, I have some doubts in simulating the qam modulator and demodulator. Let me first say what I have done till now. Here is my...

Hi all, I have some doubts in simulating the qam modulator and demodulator. Let me first say what I have done till now. Here is my code len=10000;M=16;k=log2(M); fd=1e6;fs=8e6;alpha=0.5;delay=100;Ts=1/fs;fc=1e6;% sym rate fs=samp freq x_mod=2*floor(k*rand(1,len))-k+1+1i*(2*floor(k*rand(1,len))-k+1); %x_mod=x_mod*sqrt(3/2*Var/(M^2-1)); x_real=transmit_filter(real(x_mod),fd,fs,alpha,d...

Hi, i have some doubts related to optimization and using optimization toobox in matlab. (1) i have to determine the step size for steepest...

Hi, i have some doubts related to optimization and using optimization toobox in matlab. (1) i have to determine the step size for steepest descent and newton using armijo's rule for *rosenbrock function*. can any help me with armijo's rule algorithm to code in matlab. I saw few online material , but couldn't comprehend dat much. (2) I have to plot X vs k, alpha vs k, dk vs k on the s...

Dear all, I am using filter design toolbox to generate filter design object for CIC compensator with following parameters: MultirateType:...

Dear all, I am using filter design toolbox to generate filter design object for CIC compensator with following parameters: MultirateType: 'Rational Sample Rate Converter' Response: 'CIC Compensator' InterpolationFactor: 2031 DecimationFactor: 1250 Specification: 'Fp,Fst,Ap,Ast' ...