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Recent content by sudhan7

  1. S

    Eb/No - Does increase in Eb/No help reduce ISI problem?

    how to normalized power to unity at the receiver ?
  2. S

    Need help to write matlab code for OQPSK modulation

    L is the number of symbol ..L =100;
  3. S

    Need help to write matlab code for OQPSK modulation

    xa=2*randint(1,2*L)-1; % BPSK signal generation %xb=2*randint(1,L)-1; e_xa=xa(1:2:end-1); o_xa=xa(2:2:end); rc=rcosine(1,oversamp, 'sqrt'); e_filtered = rcosflt(e_xa,1,oversamp,'filter',rc)*sqrt(oversamp); %filter o_filtered =...
  4. S

    HELP ME FOR VERILOG CODE FOR PI /4 QPSK MODULATOR AND DEMODU

    L=100; xa=randint(1,L,4); const1=cos(0:pi/2:3*pi/2)+i*sin(0:pi/2:3*pi/2); % first constellation const2=cos(pi/4:pi/2:2*pi)+i*sin(pi/4:pi/2:2*pi); % seecond constellation sig_const=zeros(1,length(xa)); sig_const(1:2:end)=const1(xa(1:2:end)+1)...
  5. S

    generate a 8 psk signal matlab code

    Re: psk matlab Hi Aya, After the psk modulation you have used rectangular pulse so that the scatterplot is look like nice. But when I am using root raised cosine pulse, it is not like this... see how I implemented rc=rcosine(1,nsample,'sqrt',0.5)...
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