基于GCS陪集分选降系统峰均比方法  

A Method of Reducing the PAR of System by Using the Choice of Accompany Aggregate Based on GCS

作　　者：吉彦军[1] 杜兴民[1] 陈玉峰[1] 

机构地区：[1]空军工程大学工程学院,陕西西安710038

出　　处：《空军工程大学学报（自然科学版）》2007年第6期68-71,共4页Journal of Air Force Engineering University(Natural Science Edition)

基　　金：国家空间微波技术重点实验室基金资助项目(51473030105JB3201)

摘　　要：降低正交频分复用系统(Orthogonal Frequency Division Multiplexing,OFDM)的峰均功率比是有效应用OFDM技术的关键。提出了一种有效降低信号峰均比的方法,大大减少了传统的降OFDM系统的峰均比计算复杂度。仿真结果表明新算法更好地降低了正交频分复用系统信号的峰均比。Reducing the Peak to Average power Ratio （PAR） is a key to applying the technology of OFDM efficiently. In this paper, an effective method based on GCS in reducing the PAR of an OFDM signal is presented. Using this improved choice of accompany aggregate coding method, the complexity of the conventional reducing PAR method of OFDM system is reduced effectively. The better statistics of peak power in the improved transmit signal are demonstrated by the simulation results.

关 键 词：正交频分复用 峰值平均功率比 格雷互补序列 子群 

分 类 号：TN911.3[电子电信—通信与信息系统]