具有干扰估计和双硬件限幅器的光CDMA直接检测接收机

A Direct-detection Optical CDMA Receiver with Interference Estimation and Double Hardlimiters

提出了一种应用干扰估计和双硬件限幅器的光CDMA的直接检测技术。在提出的系统中,当硬件限幅器的输出为“0”时,系统的输出为“0”;当硬件限幅器的输出为“1”时,系统估计这个“1”到底是干扰还是传输的信号。仿真结果表明,该系统有效地减小了多用户干扰的影响。

This paper proposes a new direct- detection technique using lnterierence estlmauon ano double hardlimiters（DHL）. When the output of DHL is “0” ,the system outputs “0”. When the output of DHL is“ 1” ,the system estimates whether the “1” is owing to the inference or the transmitted signal. It is shown that the proposed system is effective to reduce the Multi -Access Interference（MAI）.