说明：   Program from 移动传播环境-理论基础、分析方法和建模技术 杨大成编著 机械工业出版社 2003 ％ Program from pp.280~281 附录A 正弦波叠加法
(Program from mobile broadcasting environment-theoretical basis, analytical methods and modeling technology Yang Dacheng compile Machinery Industry Press 2003% Program from pp. 280- 281 Appendix A sine wave superposition)