新接收装置被建议,它使用纤维在光代码分割的光参量的放大器(FOPA ) 在空间上的多重存取(OCDMA ) 眼(FSO ) 通讯系统。在这接收装置的表演索引被导出的噪音忍耐。接收装置不能仅仅改进噪音忍耐而且为在一个复杂、快速变化的天气条件下面适应编码顺序的长度变化方便地改变泵数据。噪音忍耐上的不同因素的影响被分析,并且当泵力量和编码顺序的长度是 5 W 时,为噪音忍耐的大约 18.77 dB 的重要改进能被完成并且 256 分别地。
A new receiver is proposed, which uses the fiber optical parametric amplifier(FOPA) in optical code division multiple access(OCDMA) over free space optic(FSO) communication system. The noise tolerance as the performance index in this receiver is derived. The receiver can not only improve the noise tolerance but also change the pump data conveniently for adapting to the length variation of the coding sequence under a complex and fast-changing weather condition. The influence of different factors on the noise tolerance is analyzed, and a significant improvement of about 18.77 d B for the noise tolerance can be achieved when the pump power and the length of coding sequence are 5 W and 256, respectively.