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CCDF MATLAB code

CCDF curve is very useful for RF engineers to take care of PAPR of the time domain signal while designing RF Power amplifier.

To know basics on CCDF, Refer CCDF page in terminology section.

Source code

Download CCDF matlab file

Another way of plotting CCDF

load file_td_data;
rx_data = time_domain_data_vector;
rx1_data=abs(rx_data).^2;
ccdf_avg=mean(rx1_data);
ccdf_IA=sort(rx1_data,'descend');
ccdf_IAR=ccdf_IA./ccdf_avg;
figure;
plot(1:length(rx_data),10*log10(ccdf_IAR),'r.');
title('CCDF PLOT');xlabel('time in sec');ylabel('PAPR');

Download mat file with name file_td_data to load time_domain_data_vector.

file_td_data

CCDF curve in MATLAB code output

Select 2 as modulation type while you run the matlab code, following CCDF curve gets plotted for the time domain data.

CCDF Curve

Useful Links to MATLAB codes

Refer following as well as links mentioned on left side panel for useful MATLAB codes.
OFDM Preamble generation  Time off estimation corr  Freq off estimation corr  channel estimation  11a WLAN channel  PN sequence generation  OFDMA Tx Rx  AES DES  carrier aggregation  CCDF  FIR Filter  IIR Filter  Low Pass FIR  Viterbi decoder  CRC8 CRC32 

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