Firstly, the spread spectrum codes of OCDMA system are discussed.
首先，就OCDMA系统的扩频码展开了研究和讨论。
参考来源 - 基于FBG编解码器的光码分多址系统·2,447,543篇论文数据，部分数据来源于NoteExpress
It is a true blind detection algorithm in that it needs no knowledge of channel fading information as well as time domain and frequency domain spread spectrum codes.
该算法无需时域扩频码、频域扩频码和信道衰落信息，是一种真正意义上的盲的检测算法。
Spread spectrum, frequency-hopped, which generates many codes over a wide frequency band.
它在很宽的频带上产生许多代码。
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