光通信技术2019，Vol.43Issue(2)：9-13,5.DOI:10.13921/j.cnki.issn1002-5561.2019.02.002
基于室外可见光通信系统检测算法
Detection algorithm based on outdoor visible light communication system
摘要
Abstract
Aiming at the problems of blind likelihood detection algorithm in traditional outdoor visible light communication system, this paper proposes an improved blind likelihood detection algorithm. By setting the pulse position modulation (PPM) header at the transmitting end, the receiving end detects the packet and constrains the search by frame. The system error performance of fixed threshold detection, mean detection, traditional blind likelihood detection and improved blind likelihood detection algorithm in real outdoor environment is analyzed and compared. The simulation results show that the algorithm effectively solves the plate problem and reduces the complexity. When the turbulence intensity, background light intensity, transmission distance and luminous intensity change, the improved blind likelihood algorithm is more accurate than other detection algorithms, and is more suitable for outdoor visible light communication.关键词
可见光通信/盲似然检测/脉冲位置调制/大气湍流Key words
visible light communication/blind likelihood detection/pulse position modulation/atmospheric turbulence分类
信息技术与安全科学引用本文复制引用
秦岭,宋科宁,李宝山,杜永兴..基于室外可见光通信系统检测算法[J].光通信技术,2019,43(2):9-13,5.基金项目
国家自然科学基金(No.61501266)资助 （No.61501266）
