OOFDM在大气激光通信中的应用研究

Research and application of OOFDM for the atmosphere laser communication

将OFDM作为一种高效率的调制技术引入到大气激光通信系统中,并且在大气湍流环境下,对OOFDM调制方案与传统的开关键控(OOK)调制方案进行了比较,仿真结果显示OOFDM技术对大气湍流有很强的抗干扰能力,无论是误比特率还是频谱效率和OOK相比都得到了很大的改善。

OFDM is proposed as an efficient modulation technique suitable for atmospheric laser communica- tion systems.OOFDM modulation is compared against on/off keying （OOK） modulation in the atmospheric turbulence channel. The simulation results show that OOFDM improves the immunity to the atmospheric tur- bulence.OOFDM is shown to significantly outperform the traditional OOK over the atmospheric turbulence channel in terms of bit error rate and spectral efficiency.