gauss_pulse.m

PPM调制的超宽带系统RAKE接收机的误码率仿真程序

%
clc;
clear;
fc=100e9;
dt=1/fc;
Tm=0.91e-9;
tau1=0.2e-9;
tau2=0.3e-9;
tau3=0.4e-9;

[a1]=cp0201_waveform(fc,Tm,tau1);
[a2]=cp0201_waveform(fc,Tm,tau2);
[a3]=cp0201_waveform(fc,Tm,tau3);
a1_max=max(a1);a2_max=max(a2);a3_max=max(a3);
a1=a1/a1_max;a2=a2/a2_max;a3=a3/a3_max;%幅度归一化波形
E_a1=sum((a1.^2).*dt)
E_a2=sum((a2.^2).*dt)
E_a3=sum((a3.^2).*dt)
aa1=a1/E_a1;
aa2=a2/E_a2;
aa3=a3/E_a3;

time=linspace(-Tm/2,Tm/2,length(a1));

subplot(211);
p1=plot(time,a1,time,a2,time,a3)
xlabel('time');
ylabel('幅度');
grid on;
title('幅度归一化波形')
legend('tau1=0.2e-9','tau2=0.3e-9','tau3=0.4e-9');

subplot(212);
p2=plot(time,aa1,time,aa2,time,aa3)
xlabel('time');
ylabel('幅度');
grid on;
legend('tau1=0.2e-9','tau2=0.3e-9','tau3=0.4e-9');
title('能量归一化波形')