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Recent content by sayfee

  1. S

    matrix manupulation row column transformation

    how ?? plz give the solution
  2. S

    Various information and materials about OFDM

    what about awgn filter ??
  3. S

    Various information and materials about OFDM

    Aya sir i have one question... do we need to consider noisy channel for selective mapping based PAPR reduction technique please reply me soon,,i am waiting for your reply. and another thing how to filter awgn in matlab? thank you in advance
  4. S

    Various information and materials about OFDM

    YouTube - ‪Lecture - 31 Fundamentals of OFDM‬‏ watch this vdo
  5. S

    Various information and materials about OFDM

    :D sir this is my new ccdf of my system thank you for your help
  6. S

    [SOLVED] matlab help+envelope of a signal

    the problem is sloved, all i have to do is plot(a),hold on stem(a) thank you sir for your cooperation
  7. S

    [SOLVED] matlab help+envelope of a signal

    ok i need something like this: i draw the picture so the lines are not strait.
  8. S

    [SOLVED] matlab help+envelope of a signal

    the envelope isnt following the massage..can u suggest me another code which follows accurately ?? thank you for your reply
  9. S

    [SOLVED] matlab help+envelope of a signal

    say i have signal a=[1 1 2 3 1 2 3]; i want to plot the envelope of this signal, how to do that in matlab? thank you in advance.
  10. S

    Various information and materials about OFDM

    sir i have a question. i develop a system where i will get 2.5 dB reduction of papr (from the theoretical) in 64 sub carrier ofdm system, the theoretical value of papr of 64 ofdm is 18.06 and in my system it is 15.56, now my question is that how i can show this? i dont think ccdf graph is a good...
  11. S

    Various information and materials about OFDM

    sir kindly check my code,, i did not take the papr in dB,then how come those value are in dB,can u give me some theoretical example of this ccdf simulation code
  12. S

    Various information and materials about OFDM

    sir now i have another question: as we are not taking the papr in dB so in the plot the value of x axis is in what?? here is one plot of my work...i am a bit confused seeing the result :( did the simulation 10000 times and number of sub carrier is 64
  13. S

    Various information and materials about OFDM

    i am little bit confused about this code, 1. what is par_ss_z8r4 ?? is it the papr of ofdm signal?is its size is 1000? 2. what is cdata_ss_z8r4? 3. why here so many thing like line width,markeredgecolor.... {semilogy(t,cdata_ss_z8r4,'-b^','LineWidth',1,'MarkerEdgeColor','b','MarkerFac...
  14. S

    Various information and materials about OFDM

    Re: any thing about OFDM thank you sir for your reply..i am done with what you said..i can calculate the papr as well ,now i am stuck with ccdf.would u tell me how to plot ccdf??
  15. S

    Matlab+FM modulation of some complex value:

    i have one complex number. i want to do FM modulation of that ex: a=2+2i; i have one carrier cos(2*pi*fc*t); here fc=1000; is it possible to do that in matlab. or i m totally wrong. plz let me know
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