Study of class-D power amplifiers for underwater acoustic OFDM transmissions
Study of class-D power amplifiers for underwater acoustic OFDM transmissions
复制标题
水声正交频分复用传输D类功率放大器的研究
作者：
Xiaoka Xu;Shengli Zhou;Kaleel Mahmood;Li Wei;Jun
本文研究了水声OFDM系统中功率放大器的设计。以OFDM信号的导频信噪比（PSNR）为设计准则，研究了调制频率和量化比特数对D类功率放大器性能的影响。实验结果表明，随着量化比特数的增加，PSNR的性能存在天花板。
In this paper, we investigate the power amplifier design for underwater acoustic OFDM systems. Using the pilot signal to noise ratio (PSNR) of an OFDM signal as the design criterion, we study the impact of the modulation frequency and the number of quantization bits for the class-D power amplifiers. Experimental results show that there is PSNR performance ceiling as the number of quantization bits increases.