CAJ | 학술논문

OFDM是无人机高速遥测信道中的主要传输技术之一，但是OFDM系统的主要缺陷之一是具有较高的峰均比。文中研究了一种信道纠错编码与迭代限幅滤波算法（Repeated Clipping and Filtering，RCF）相结合的峰均比抑制方案。仿真结果表明，RCF算法能够实现峰均比的有效抑制，卷积编码和Turbo编码能够有效抑制RCF算法产生的限幅噪声，降低系统误码率。
OFDM시무인궤고속요측신도중적주요전수기술지일，단시OFDM계통적주요결함지일시구유교고적봉균비。문중연구료일충신도규착편마여질대한폭려파산법（Repeated Clipping and Filtering，RCF）상결합적봉균비억제방안。방진결과표명，RCF산법능구실현봉균비적유효억제，권적편마화Turbo편마능구유효억제RCF산법산생적한폭조성，강저계통오마솔。
OFDM is one of the main transmission technologies in high-data-rate telemetry channel of UAV. One of the main drawbacks of OFDM is the high PAPR (Peak to Average Power Ratio). A scheme with the combination of channel FEC coding and RCF (Repeated Clipping and Filtering) is proposed for the reduction of PAPR. It is shown that RCF algorithm can effectively reduce PAPR, and convolutional coding and turbo coding can significantly reduce the clipping noise and alleviate the bit error rate performance degradation.