摘要
针对宽带梳状谱干扰信号存在峰均值功率比(PAPR)较高的问题,提出了一种新的包络优化法,采用了优化初相的快速搜索技术,不失真地降低了信号的PAPR。通过理论分析和仿真试验,验证了采用新方法而设计的梳状谱信号当N>20时可将PAPR降低到2.6 dB以下,方法简单,其适应性和可行性强,且子载波数目越多就越能显著提高搜索速度。
This paper gives a method for suppressing the Peak to Average Power Ratio（PAPR） of broadband jamming signals with comb spectrum,which adopts the rapid search technology optimizing the initial phase,and reduces the PAPR of jamming signals without distortion.The theoretical analysis and simulation results show that the PAPR of comb spectrum signals designed by the new method is less than 2.6 dB when N20.This method is simple and feasible,and the search speed is improved more significantly when there are more subcarriers.
出处
《无线电工程》
2011年第1期28-30,共3页
Radio Engineering
关键词
宽带梳状谱信号
相位优化法
峰均功率比
broadband signals with comb spectrum
phase optimization method
peak-to-average-power ratio（PAPR）
