论文部分内容阅读
为了降低非线性对正交频分复用(OFDM)光纤通信系统性能的影响,采用了一种适用于OFDM光纤通信系统的电非线性后置补偿方法。此方法基于OFDM光纤通信系统中的光纤模型,采用非线性薛定谔方程(NLSE)进行非线性后置补偿,用对称分步傅里叶算法对方程进行解析,并通过数值仿真证明了该方法能够很好地解决OFDM光纤通信系统的非线性问题,提高系统性能。
In order to reduce the influence of nonlinearity on the performance of Orthogonal Frequency Division Multiplexing (OFDM) optical fiber communication system, an electrical nonlinear post-compensation method suitable for OFDM optical fiber communication system is adopted. Based on the optical fiber model in OFDM optical fiber communication system, this method uses nonlinear Schrodinger equation (NLSE) for nonlinear post-compensation, and uses the symmetric fractional Fourier algorithm to solve the equation. The numerical simulation shows that this method can be very effective Good solution to the nonlinear problem of OFDM optical fiber communication system, improve system performance.