搭建OFDM通信系统的框架，用蒙特卡洛模拟的方法计算美式期权的价格以及基本描述,实现了对10个数字音的识别。- Build a fr a mework OFDM communication system, Monte Carlo simulation method of calculating the American option price and basic descr iption, To achieve the recognition of 10 digital sound.