中文说明：提供了产生单脉冲线性调频信号的程序，编写信号产生函数，根据输入参数，产生所需要的线性调频信号。本程序为单脉冲信号产生，可适当修改函数，以产生脉冲串信号。实为老师编的程序，编程规范，风格可以学习参考。
English Description：
Provides a single pulse chirp signal generating program, write signal generating function, based on the input parameters to produce the desired chirp signal. This procedure for a single pulse signal is generated, may be appropriate to modify the function to generate a pulse train signal. Real compiled programs for teachers, programming specifications, styles can learn reference.