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imran khan


Active since 2019

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Problem in theoratical and simulated bit error rate
Dear fellows i am facing one problem.Problem is that there is difference between simulated and theoretical curve while calculati...

5 years ago | 0 answers | 0

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Question


Facing problem in ploting figures
i want to plot last two figures in one plot can anybody help me clc,close all,clear all codn=100; EbN0=20:30; q=1.6e-19; ...

5 years ago | 2 answers | 0

2

answers

Question


BER(bit error rate problem)
I am writing code for BER(bit error rate ) of OOK(ON OFF keying signal),but there is little problem in my code.Problem is that m...

5 years ago | 0 answers | 0

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answers

Question


I have to calculate BER(bit error rate ) of OOK(on off keying signal)
Dear fellows,i have generated OOK(on off keying signal).Then i have taken FFT of OOK signal and then i have removed some part of...

5 years ago | 1 answer | 0

1

answer

Question


I have calculated BER please check whether it is right or not
I have calculated BER(bit error rate) please check whether it is right or not.I want to confirm that my output is right or not b...

5 years ago | 0 answers | 0

0

answers

Question


problem in plotting figure
Dear fellows,i have modified code but i have problem in plotting the last figure(4) and problem is in this line plot(tvec,abs(zi...

5 years ago | 1 answer | 0

1

answer

Answered
check my code please
purpose of my code is that i have generated OOK signal and then i have taken FFT of signal and remove frequency from 50-150HZ.af...

5 years ago | 0

Question


check my code please
clc,close all,clear all codn=100; % fc=6e+3; fs=360; bode=10; code=round(rand(1,codn)); code_len=round(1/bode/(1/fs)) f...

5 years ago | 1 answer | 0

1

answer

Question


improving result of FFT
Dear fellows i want to achieve good frequency resolution by adding this command in my code n = 2^nextpow2() but i dont know how...

5 years ago | 1 answer | 0

1

answer

Question


time domain and frequency domain
Dear fellows,i am facing problem in my code below.Problem is that signal in time domain does not give me correct value of N,i me...

5 years ago | 1 answer | 0

1

answer

Question


Dear fellows i am removing noise from( 3-200)HZ.
Dear fellows i am removing noise from( 3-200)HZ ,but the problem is that after removing frequency i took IFFT of signal so that...

5 years ago | 1 answer | 0

1

answer

Question


Dear fellows i am working on visible light communication and i removed frequency in the range of 3-200 HZ becuase of noise .Will you please do some modification in my code so that in last figure in time domain i use filter which does not remove noi
clc,close all,clear all codn=70; % fc=6e+3; fs=3600; bode=10; code=round(rand(1,codn)); code_len=round(1/bode/(1/fs)) f...

5 years ago | 0 answers | 0

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answers

Question


i have removed frequency from (3-200)HZ from FFT signal.Now i want to remove noise from last figure which is in time domain so that i can transmit signal.Thanks in advance.
clc,close all,clear all codn=70; % fc=6e+3; fs=3600; bode=10; code=round(rand(1,codn)); code_len=round(1/bode/(1/fs)) f...

5 years ago | 1 answer | 0

1

answer

Question


removal of frequency from 0-200HZ
I am removing frequecy from( 0-200)HZ from FFT spectrum and then i have taken IFFT of signal to see complete spectrum in time d...

5 years ago | 1 answer | 0

1

answer

Question


remove frequency from (0-200 hz)
i want to remove frequency from (0-200hz) from frequency domain of signal but i dont know how to do it,after doing this i have ...

5 years ago | 0 answers | 0

0

answers

Question


FFT of ON OFF signal
clc,close all,clear all codn=70; % fc=6e+3; fs=36000; bode=1000; code=round(rand(1,codn)); code_len=round(1/bode/(1/fs));...

5 years ago | 1 answer | 0

1

answer