部分传输序列(PTS)方法作为降低高峰均功率比(PAPR)信号的有效方法,因具有较高的计算复杂度而限制了其应用,也因此演化出许多的改进PTS算法。文中对包括IPTS、滑动窗搜索PTS、子块联合分割PTS、Had-amard-PTS、m序列-PTS和pso-PTS等在内的多种PTS演化算法作了研究与仿真,分析比较各种方法的优劣,在此基础上提出PTS融合算法。仿真结果表明,融合算法实现了算法之间的优势互补,在较低计算复杂度的情况下能够有效地降低系统的峰均比。
PTS(Partial Transmit Sequence) is an effective algorithm for the reduction of the high peak-to-average ratio(PAPR) of OFDM signal.But its application is limited for its high computational complexity.This research on the PTS algorithm covers IPTS,sliding window search PTS,Sub-block combined division PTS,Hadamard-PTS,m-sequence PTS,pso-PTS,and their algorithm performances are carried out.Then two PTS syncretic algorithms are proposed to improve the performance.The simulation results show that the syncretic algorithm is of low computational complexity and can restrain the high PAPR effectively.