However one of main problems of OFDM is its high Peak-to-Average Power Ratio (PAPR) which seriously limits performance of High Power Amplifier (HPA).是什么意思_However one of main problems of OFDM is its high Peak-to-Average Power Ratio (PAPR) which seriously limits performance of High Power Amplifier (HPA).在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句