For the effect of PAPR of OFDM signals reduction, an improved companding scheme was proposed based on threshold.The scheme uses the companding technique based on the simple clipping technique.

• 摘要为了降低OFDM信号的高峰均功率比，在削波技术简单直接的基础上，应用压扩技术，提出了一种基于门限的降低峰均功率比的改进压扩方案。