SAR_Figure_5_18.m

% SAR_Figure_5_18
% 2016.10.13

close all;clear all;clc;

%% 场景设置
% 雷达设置
C = 3e8;                                                                    % 光速
f0 = 5.3e9;                                                                 % 雷达工作频率
lambda = C/f0;                                                              % 工作波长
La = 3.3;
theta = 22.8;                                                               % 波束斜视角
theta = theta/180*pi;
% 平台设置                           
V = 150;                                                                    % 雷达有效速度
Rc = 20e3;                                                                  % 景中心斜距
R0 = Rc*cos（theta）;                                                         % 最短斜距
% 距离向设置
Tr = 25e-6;                                                                 % 发射脉冲时宽
Kr = 0.25e12;                                                               % 距离调频率
Kr_pos = Kr;                                                                % 距离调频率
Kr_neg = -Kr;                                                               % 距离调频率
Br = Kr*Tr;
alphaR = 1.2;                                                               % 距离向过采样率
Fr = alphaR*Br;                                                             % 距离向采样频率
dtau = 1/Fr;                                                                % 距离向采样时间间隔
Nr = 256;                                                                   % 距离线数
% 方位向设置
Bdop = 0.886*2*V*cos（theta）/La;                                             % 多普勒带宽
alphaA = 1.3;                                                               % 方位向过采样率
Fa = alphaA*Bdop;                                                           % 方位向采样频率
deta = 1/Fa;