| 摘要: |
| 海上升空通信中继系统是解决海上广域无线宽带通信的重要手段，但其性能易受海面波动带来的多径衰落影响。为了有效提升中继系统接收信号质量，提出了一种多天线分集接收方法，通过现场可编程门阵列（Field Programmable Gate Array，FPGA）实现相应的接收处理。仿真分析及实验室测试表明，所提出的四天线分集接收技术能够带来近6 dB的合成增益。经海上对比试验验证，采用所提出的多天线分集接收技术的升空通信中继系统，其数据接收完整性提升了10%~20%，系统性能显著改善。 |
| 关键词: 海上升空平台：通信中继 多径衰落：分集接收 |
| DOI：10.20079/j.issn.1001-893x.231209001 |
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| 基金项目: |
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| Application of Diversity Reception Technology in a Maritime Airborne Communication Relay System |
| CHEN Shuheng,ZHANG Xin,ZHU Niyao,ZHAO Yong |
| (Unit 92728 of PLA, Shanghai 200436, China) |
| Abstract: |
| The maritime airborne communication relay system is an important means to solve the problem of wide area wireless broadband communication at sea, but its performance is easily affected by multipath fading caused by sea surface fluctuations.To effectively improve the signal quality of the airborne communication relay system, a multi-antenna diversity reception method is proposed in which corresponding reception processing is realized through field programmable gate array(FPGA).Simulation analysis and laboratory test show that the proposed four-antenna diversity reception technology can bring a synthetic gain of nearly 6 dB.Through sea comparative experiments, it is verified that the data reception integrity of the airborne communication relay system adopting the proposed multi-antenna diversity reception technology is improved by 10% to 20%, and the system performance is significantly improved. |
| Key words: maritime airborne platform communications relay multipath fading diversity reception |
