高速光OFDM信号预失真用于多低带宽接收机系统的无失真接收
摘要
A cost-effective method of multi-receiver optical orthogonal frequency-division multiplexing (OOFDM) system is proposed to reduce the requirement for the speed of the receiver and the size of fast Fourier transform (FFT). The sampling rate of analog-to-digital converters (ADCs) can be reduced to 1/N of the original signal bandwidth in an N -receiver system. Aided by signal predistortion at the transmitter, aliasing-free signal can be retrieved independently and directly at the low speed receivers. A back-to-back experimental result is given for a two-receiver system. The effect of the electrical filters added before the ADC is studied and the analysis for filters optimization is given.
引用本文(GB/T 7714)
Lin Cheng, He Wen, Xiaoping Zheng, 等. 高速光OFDM信号预失真用于多低带宽接收机系统的无失真接收[J]. Chinese Optics Letters, 2010.
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