Abstract

The possibility of using acousto-optic multiband filters for construction of code division multiple-access communication networks has been experimentally proved. Correlation interference has been studied for a set of bands with a spectrum close to sin(x)/x function which are used for encoding/decoding. For the case of several transmitters, a special technology was developed and realized that made it possible to perform studies on a transmission line based on two filters. The key component of this technology lies in emulating the sum signal from two to five transmitters on the first filter. The measured signal-to-interference ratio was more than 11 dB and decreased by less than 3 dB due to correlation interference from the network neighborhood and the emulation error of the sum signal.

中文翻译：

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在非相干OCDMA系统中通过频谱编码信号解码进行多频带声光滤波的实验研究

摘要

实验证明了使用声光多频带滤波器来构建码分多址通信网络的可能性。已经针对频谱接近sin（x）/ x函数的一组频带研究了相关干扰，这些频带用于编码/解码。对于多个发射机的情况，已经开发并意识到一种特殊的技术，该技术使得有可能在基于两个滤波器的传输线上进行研究。该技术的关键组成部分在于在第一个滤波器上模拟来自两个到五个发射机的和信号。由于来自网络邻域的相关干扰和和信号的仿真误差，测得的信号干扰比大于11 dB，而降低了小于3 dB。