【摘要】 研究了非线性效应对OFDM符号误码率的影响。在发射机 ,为了提高发射效率 ,放大器有时工作于非线性区域 ,因而带来非线性的影响。对于多载波系统 ,由于非线性的影响 ,会使各个子载波之间产生干扰 ,从而影响所传输的数字信号。本文研究了这种非线性效应的影响 ,并给出二阶 ,三阶非线性对系统误码率影响的具体情况。更多还原

【Abstract】 In this paper,the nonlinear effect on OFDM symbol error rate is studied.A corrected formula is given for third nonlinear effect.On the basis,a formula for second nonlinear effect on OFDM is also deduced.The computed results are compared for second and third nonlinear effects.The results shows the second nonlinear effect can be ignord comparing with third nonlinear effect.更多还原