基于新型交织器的自由空间光通信抗干扰算法

Xiaochuan Tan, Biyao Wang, Shaobo Li, Mingyi Ma, Xiaole Zhang, Ruohan Feng
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引用次数: 0

摘要

针对自由空间光通信中大气湍流导致系统误码增加,影响通信稳定性的问题,提出了一种抑制大气湍流影响的算法。该算法结合传统的分组矩阵交织器和随机交织器设计方法,构造了一种新型的交织矩阵,解决了不同大气条件下的湍流效应。采用外接DDR3的现场可编程门阵列(FPGA)板实现该算法并优化时延。结果表明,该算法在不同湍流模型下均具有较高的精度和可靠性。同时,可以在一定程度上降低湍流效应对链路性能的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Anti-turbulence algorithm for free-space optical communication based on a novel interleaver
Aiming to solve the problems of the atmospheric turbulence in free-space optical communications which cause the increase of the system bit error and influence the communication stability, an algorithm is proposed to suppress the influence of atmospheric turbulence. This algorithm combines traditional grouped matrix interleaver and random interleaver design methods to construct a new type of interleaving matrix to solve the turbulence effect under different atmospheric conditions. A field programmable gate array (FPGA) board with external DDR3 is used to implement the algorithm and optimize the delay. The results show that the algorithm is accurate and reliable in different turbulence models. At the same time, the impact of turbulence effects on link performance can be reduced to a certain extent.
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