频率步进雷达信号

function out=stepfrequency（Trafffstime）;
%Tr=2e-6;                   %脉冲周期
f0=10e6;                   %起始频率
%a=0.25;                    %占空比
T=Tr*a;                    %脉宽
%ff=5e6;                    %步进频率
%fs=5e8;                    %采样频率
%time=8;                    %time次步进
B=time*ff;                 %带宽
                         
num0=round（（Tr-T）*fs）;
%num=round（（Tr-T）*fs）;

Ts=1/fs;
t1=0:Ts:T-T