Jam analysis and coping strategies of 4G on BeiDou RDSS system
-
摘要: 针对4G系统对北斗系统无线电测定业务(RDSS)产生的邻频干扰问题,提出了一种基于整机模块分解的影响分析方法,从理论上归纳出用户机抑制带外干扰的主要技术措施,两个关键指标是有效带宽和处理增益,主要模块是射频模块(RF).根据理论分析,设计了不同参数的射频通道,并在测试平台上验证了各射频通道的带外抑制能力,分析了测试结果的规律性和差异性.研究成果可为北斗系统与4G系统兼容共存提供技术基础.
-
关键词:
- 无线电测定业务(RDSS) /
- 临频干扰 /
- 有效带宽 /
- 处理增益 /
- 1 dB压缩点(P-1) /
- 三阶截取点(IP3)
Abstract: Aimed at the problem of adjacent frequency jam caused by 4G system on Radio Determination Satellite Service (RDSS) of Beidou system, the analysis way based on the decomposition of wholemachine module is proposed. The main technical measures of restraining from outofband jam are summarized theoretically. Effective bandwidth and processing gain are two key indexes, and the main module is Radio Frequency (RF) module. According to the results of theory analysis, the different RF channels of different apparatus parameters are designed, and the outofband rejection ability of each RF channel is verified on the united test platform. The law and otherness of the test results are described. The research results can provide technical foundation for the compatible coexistence of Beidou system and 4G system. -
[1] CHEN L, HAN C, DU L,et al. Analysis of GNSS IDM situation and its revelation to Us[C]// In China Satellite Navigation Conference (CSNC) 2012 Proceedings, 2012:1876-1100. [2] RTCA. Assessment of the lightsquared ancillary terrestrial component radio frequency interference impact on GNSS L1 band airborne receiver operations[R].Washington DC:RTCA, 2011:154. [3] CILLIAN O D,MARCO R,DANIELE B,et al.Compatibility analysis between lightsquared signals and LIIEI GNSS reception[R].In Position Location and Navigation Symposium (PLANS), 2012:23-26. [4] MARCO R, CILLIAN O D,DANIELE B,et al. Lightsquared effects on estimated C/N0, pseudoranges and positions[J]. GPS Solution, 2014,18(1): 1-13. [5] 埃尔温·布鲁克斯·怀特. 射频与微波工程实践导论[M]. 李秀萍, 高建军,译. 北京:电子工业出版社,2009. [6] ELLIOTT D K, CHRISTOPHER J H. GPS原理与应用[M]. 寇艳红,译. 2版. 北京:电子工业出版社, 2014. [7] 崔保延. GPS软件接收机基础[M]. 陈军,译.2版.北京:电子工业出版社 2007. [8] 祖秉法. 北斗接收机射频模块关键技术的研究[D]. 哈尔滨: 哈尔滨工程大学,2006. [9] 郭勇. 双星定位系统扩频信号捕获跟踪及相关技术研究 [D]. 成都:西南交通大学,2002. [10] JOHN W B. Effect of partialband interference on receiver estimation of C/No:Theory[C]// In Proc. of the 2001 National Technical Meeting of The Institute of Navigation, Long Beach, CA, 2001: 817-828. [11] 王前, 谢维华. 4G邻频系统对北斗RDSS系统的干扰分析[C]// 第五届中国卫星导航学术年会电子文集, 2014:1-5.
点击查看大图
计量
- 文章访问数: 355
- HTML全文浏览量: 41
- PDF下载量: 166
- 被引次数: 0