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1. 发明申请

US20110182339A1 METHOD AND APPARATUS FOR REDUCING PEAK TO AVERAGE POWER RATIO USING PEAK WINDOWING 有权
标题翻译：使用峰值窗口降低平均功率比的峰值的方法和装置
公开(公告)号：US20110182339A1
公开(公告)日：2011-07-28
申请号：US13004271
申请日：2011-01-11
申请人： In-Tae KANG , Jung-Hwa BAE , Jung-Uk WOO , Shin-Ho KIM , Sang-Min BAE , Jong-Han LIM , Dong-Min KIM , Bo-Rham LEE
发明人： In-Tae KANG , Jung-Hwa BAE , Jung-Uk WOO , Shin-Ho KIM , Sang-Min BAE , Jong-Han LIM , Dong-Min KIM , Bo-Rham LEE
IPC分类号： H04B17/00
CPC分类号： H04L27/2624
摘要： A method and apparatus for reducing a Peak to Average Power Ratio (PAPR) using peak windowing is provided. In the apparatus, an absolute value calculator calculates an absolute value of an input signal, a subtractor subtracts a predetermined clipping threshold level from the absolute value, a smoothing unit performs smoothing on the subtracted signal according to a predetermined smoothing scheme and outputs a first smoothed signal, an adder adds the first smoothed signal to the clipping threshold level, an inverse calculator outputs a second smoothed signal by multiplying the clipping threshold level by an inverse of the added signal, and a multiplier outputs a final PAPR-reduced signal by multiplying the input signal by the second smoothed signal. The method and apparatus address an overcompensation problem while processing signals having a large bandwidth and a high data rate without delay, thereby minimizing the clipping influences on Bit Error Rate (BER) and Adjacent Channel Leakage Ratio (ACLR) performances.
摘要翻译：提供了一种使用峰值窗口降低峰均功率比（PAPR）的方法和装置。在设备中，绝对值计算器计算输入信号的绝对值，减法器根据绝对值减去预定的限幅阈值电平，平滑单元根据预定的平滑方案对减法信号进行平滑处理，并输出第一个平滑信号，加法器将第一平滑信号与削波阈值电平相加，逆计算器通过将削波阈值电平乘以相加信号的倒数来输出第二平滑信号，乘法器将最终的PAPR降低信号乘以输入信号由第二平滑信号。该方法和装置在不延迟地处理具有大带宽和高数据速率的信号的同时解决过度补偿问题，从而最小化对误码率（BER）和相邻信道泄漏比（ACLR）性能的削波影响。

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