close?all;?clear?all;?clc;

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%??????????????????????????????????????三點目標（ABC）小斜視角下的機載雷達仿真
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Rc=2e4;?%景中心斜距
Vr=150;?%雷達有效速度
Tr=2.5e-6;?%發射脈沖時寬?
Kr=20e12;?%距離調頻率
f0=5.3e9;?%雷達工作頻率
deltaF=80;?%多普勒帶寬
Fr=6e7;?%距離向采樣率
Fa=100;?%方位向采樣率
Na=256;?%距離線數
Nr=320;?%距離線采樣點數
thetaC=3.5*pi/180;?%波速中心斜視角
R0=Rc*cos（thetaC）;?%最短斜距
etaC=-Rc*sin（thetaC）/Vr;?%波束中心偏移時間
c=3e8;?%光速?
lamda=c/f0;?%波長
fc=2*Vr*sin（thetaC）/lamda;?%多普勒中心頻率
betaBW=deltaF*lamda/（2*Vr*cos（thetaC））;?%方位向波束寬度
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tau=linspace（2*Rc/c-0.5*Nr/Fr2*Rc/c+0.5*Nr/Fr-1/FrNr）;?%距離時間???等間距一維數組??個數為Nr-1?
ftau=linspace（-Fr/2Fr/2-Fr/NrNr）;?%距離頻率
eta=linspace（-0.5*Na/Fa0.5*Na/Fa-1/FaNa）;?%方位時間??坐