光通信技术2025，Vol.49Issue(6)：25-29,5.DOI:10.13921/j.cnki.issn1002-5561.2025.06.005
基于级联均衡的蓝绿光LED水下无线光通信研究
Research on underwater wireless optical communication using blue-green LED based on cascade equalization
摘要
Abstract
A underwater wireless optical communication system is proposed to address the issues of small modulation band-width and low electroluminescence efficiency of light-emitting diode(LED).The system is driven by a cascaded T-bridge equalization and Schottky diode capacitor(SD-C)equalization circuit.This scheme shortens the rise and fall time of the re-ceived optical signal waveform,and increases the-3 dB bandwidth of underwater wireless optical communication systems based on blue LED and green LED to 165 MHz and 130 MHz,respectively.In a 1 meter ong underwater channel test,the sys-tem successfully achieved blue light signal transmission with a data transmission rate of up to 210 Mb/s and green light signal transmission with a data transmission rate of 175 Mb/s.The measured bit error rates were 1.8×10-3 and 2.5×10-3,respectively,both below the forward error correction limit of 3.8×10-3.关键词
水下无线光通信/T型桥式均衡/肖特基二极管-电容均衡/发光二极管/级联均衡电路Key words
underwater wireless optical communication/T-type bridge equalizer/Schottky diode capacitor equalizer/light-emitting diode/cascaded equalization circuit分类
信息技术与安全科学引用本文复制引用
李仁立,张家梁,周勋,高冠军..基于级联均衡的蓝绿光LED水下无线光通信研究[J].光通信技术,2025,49(6):25-29,5.基金项目
国家自然科学基金项目(62371064)资助 （62371064）
北京市自然科学基金项目(4232050)资助. （4232050）
