产生一组简单的线性调频chirp信号,帮助大家学习matlab 用于雷达脉冲压缩-creat a simple LFM signal

关于脉冲压缩雷达方面的章节部分，还包括了线性调频信号产生以及匹配滤波方面的matlab仿真-About the section called pulse compression radar aspects include the chirp signal generation and matched filtering of matlab simulation

线性调频信号脉冲压缩的原理及matlab仿真的详细步骤，进一步理解雷达成像的基础知识(The principle of pulse compression of LFM signal and the detailed steps of MATLAB simulation further understand the basic knowledge of radar imaging)