雷达线性调频信号，很有用，包括信号的生成，和频谱的仿真代码，详细的画图历程-Chirp radar signal, useful, including the generation of signal and spectrum simulation code, a detailed drawing course

In the proposed algorithm, the range-independent de-rotation operation is employed to overcome the spectrum aliasing problem, and the signal properties after de-rotation are derived in detail. Moreover, a modified range-dependent deramp function i