距离假目标干扰下目标回波

T=10e-6;                          %pulse duration10us
B=30e6;                           %chirp frequency modulation bandwidth 30MHz
K=B/T;                            %chirp slope
Fs=2*B;Ts=1/Fs;                   %sampling frequency and sample spacing
N=T/Ts;
t=linspace（-T/2T/2N）;
sl=exp（j*pi*K*t.^2）+exp（j*pi*K*（t-（2e-6