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正交频分复用(OFDM)是一种有效降低符号间干扰的高速数据调制技术。在技术实现过程中若峰均比(PAPR)过高,发射机和接收机内部放大器线性要求就会很高,从而限制了OFDM调制技术的实际应用。部分传输序列(PTS)算法可以有效地降低峰均比。在此通过介绍几种改进型的部分传输序列方法,并且在峰均比降低性能、计算复杂度和其他性能指标几个方面做出了分类对比,这对今后降低PAPR的研究有一定的指导意义。
Orthogonal Frequency Division Multiplexing (OFDM) is a high-speed data modulation technique that effectively reduces intersymbol interference. If the PAPR is too high during the implementation of the technology, the linear requirements of the internal amplifier of the transmitter and the receiver will be very high, which limits the practical application of the OFDM modulation technique. Partial transmission sequence (PTS) algorithm can effectively reduce the peak-to-average ratio. In this paper, by introducing several improved partial transmission sequence method, and in terms of peak-to-average reduction performance, computational complexity and other performance indicators made a comparison of several aspects, which will reduce PAPR in the future have some guidance .