基于等效载噪比的WiFi与北斗三号RSMC出站信号的兼容性分析
Compatibility Analysis of WiFi and BDS-3 RSMC Outbound Signal Based on Equivalent Carrier to Noise Ratio
李刚 1郭磊 1支春阳 1刘佳浩 1郝泽华1
作者信息
- 1. 深圳市远东华强导航定位有限公司,广东深圳 518073
- 折叠
摘要
近年来,北斗导航系统建设逐渐完善,北斗三号区域短报文通信(Reginal Short Message Communication,RSMC)服务已进入行业应用越来越广的关键时期.WiFi信号与北斗三号RSMC出站信号频率接近,在实际使用过程中,2个系统可能存在兼容性问题.针对WiFi信号干扰对北斗三号RSMC出站信号性能的影响问题,介绍了北斗三号RSMC出站信号的空口特性,分析了 WiFi信号对北斗三号RSMC出站信号的带外干扰和带内干扰,基于等效载噪比的分析方法,从载噪比损失方面对干扰的强度做了仿真分析,并给出了改进方法.研究结果为WiFi和北斗区域短报文服务兼容并存提供技术基础.
Abstract
The construction of BeiDou navigation system has gradually improved in recent years,and BDS-3 Reginal Short Message Communication(RSMC)service has entered a critical period of increasingly widespread industry application.In practical using,the frequency of WiFi signal is close to the frequency of BDS-3 RSMC outbound signal,and there may be a compatibility problem between the two systems.To solve the problem of the influence of WiFi signal interference on the performance of BDS-3 RSMC outbound signal,the air interface characteristics of BDS-3 RSMC outbound signal are introduced,and the out-of-band interference and in-band interference of WiFi signal to BDS-3 RSMC outbound signal are analyzed.Based on the analysis method of equivalent carrier to noise ratio,the intensity of interference is simulated and analyzed from the aspect of carrier to noise ratio loss,and the improvement method is given.The research results provide a technical basis for the compatible coexistence of WiFi system and BeiDou regional short message service.
关键词
区域短报文通信/北斗三号/邻频干扰/WiFi/卫星通信Key words
RSMC/BDS-3/adjacent frequency interference/WiFi/satellite communications引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据