Aimed at FM broadcast signal, this dissertation puts forward to its research model, then under three circumstances analyses math idea and result by and by. At last the simulations show that this method is valid to resolve the problem.

• 本研究课题针对调频信号提出了自己研究模型，由易到难逐一的对三种情况进行了数学分析和仿真，结果证明了这种方法是有效可行的。