中文摘要：

针对通信系统中宽带功率放大器引起的非线性失真问题,提出了最小差错概率（MBER）算法,以优化非线性均衡器参数,并采用非线性均衡器与数字预失真器对功率放大器非线性失真进行联合补偿.预失真用于减少非线性失真对带外的干扰,非线性均衡器用于减少带内失真.仿真结果表明,基于MBER算法的非线性均衡器性能优于基于最小均方误差算法的均衡器;联合线性化简化了预失真器的结构,并可获得更优的误码率性能.

英文摘要：

A joint compensation by digital pre-distortion and nonlinear equalizers was proposed for nonlinear distortion of wide band power amplifiers in communications. The nonlinear equalizers are based on minimum bit error rate（ MBER） algorithm. Out-band interference caused by nonlinear distortion is suppressed by digital pre-distorters,and in-band distortion is reduced by nonlinear equalizers. Simulations show that the performance of nonlinear equalizers based on MBER is superior to that based on minimum mean square error algorithm. Through joint compensation of pre-distortion and equalization,the digital distorters can be simplified and the performance of bit error rate can be improved.