一种降低多载波干扰信号峰均功率比的改进算法

An Improved Algorithm for Reducing peak-to-Average Power Ratio of Multi-carrier Jamming Signal

从相位优化法的角度出发,仿真分析验证了经PCM、BPSK调制的多载波干扰信号,运用Newman相位优化法可以很好地降低信号的PAPR,而对于MPSK(M>2)、QAM等调制的信号,Newman相位优化法PAPR降低效果欠佳。针对这一问题,提出了一种Newman相位法级联峰值对消算法的PAPR抑制技术,仿真结果表明,该方法可以很好地降低多载波干扰信号PAPR的同时降低系统的复杂度。

From the viewpoint of optimization phase, the simulation results show that the PAPR of PCM, BPSK modulation signal can be effectively reduced by the Newman phase optimization method. For MPSK（M2）,QAM and other modulation signal, Newman phase optimization method can not effectively reduce the PAPR. In this paper, a method for reducing PAPR based on Newman phase optimization method combined with peak cancellation algorithm is proposed. Simulations show that this method can effectively inhibit the PAPR of multi-carrier jamming signal and can reduce the complexity of the system.