说明：  添加噪声处理，实现串口的数据采集，FMCW调频连续波雷达的测距测角，是小学期课程设计的题目，课程设计时编写的matlab程序代码。
( Add noise processing, Achieve serial data acquisition, FMCW frequency modulated continuous wave radar range and angular measurements, Is the topic of the elementary school stage curriculum design, Course designed to prepare the matlab program code.)