利用matlab写成的窄带噪声发生，包括单边带、双边带、载波抑制及四倍频,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。- Using matlab written narrowband noise occurs, Including single sideband, double sideband, suppressed carrier and quadruple, Monte Carlo simulation method of calculating the American opt