clc;
clear?all;
close?all;

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
f0=100e3;?%載波頻率（MHz）
fs=1e6;???%采樣頻率（MHz）
tc=1/fs;
Am=1;
td=0;???%包周差
T=1e-3;?%采樣點(diǎn)數(shù)
t=0:1/fs:T-1/fs;
Pc=0;


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%羅蘭c原始信號(hào)%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

m1=（t-td）.^2;
m2=exp（-2*（t-td）/65e-6）;
signal=sin（2*pi*f0*t+Pc）;
LoranC_signal=Am*m1.*m2.*signal;%%原始羅蘭C信號(hào)
N=length（LoranC_signal）;????%信號(hào)長(zhǎng)度
norm_LoranC_signal?=?mapminmax（LoranC_signal）;?%歸一化
figure（1）;
plot（norm_LoranC_signal）;???%原始羅蘭C單脈沖信號(hào)圖
axis（[0?800?-1?1]）?;