导航卫星系统功率增强技术与覆盖范围研究

测绘学报

导航卫星系统功率增强技术与覆盖范围研究

孙进

中国空间技术研究院总体部

收稿日期:2011-04-06 修回日期:1900-01-01 出版日期:2011-05-05 发布日期:2015-06-24
通讯作者: 孙进

Research to power-enhanced technology and coverage areas of global navigation satellites

Received:2011-04-06 Revised:1900-01-01 Online:2011-05-05 Published:2015-06-24

摘要/Abstract

摘要： 本文基于国内外导航卫星功率增强设计的深入调研，在系统层面上仿真分析我国导航卫星系统中的GEO卫星在不同的仰角下天线波束的地面覆盖区域。在对功率增强技术分析的基础上，着重研究了我国导航卫星系统的功率增强信号的覆盖范围，给出了10dB、15dB、20dB、25dB不同功率增强要求下，地面接收功率、天线波束覆盖范围的仿真分析，提出了功率增强要求对于卫星的约束条件，并最终为我国全球导航卫星系统的功率增强实现方案提出建议。本文结合我国导航卫星系统的现状，将我国导航卫星系统与GPS III系统功率增强从地面接收信号强度、功率增强的覆盖范围、功率增强技术的实现难度、导航卫星系统的多普勒碰撞问题进行了性能对比。最终总结全文，给出结论。

Abstract: Based on in-depth research of power-enhancement of domestic and international navigation satellites, this paper analyzed the coverage areas of GEO satellites’ antenna beam under different angles of elevation. On the basis of analysis and demonstration of power-enhanced technology and program, this paper mainly discussed the power-enhanced signal’s coverage areas of our global navigation satellite. It gave out simulations of ground receiving power and antenna beam coverage, under different power-enhancement requirements of 10dB, 15dB, 20dB, 25dB. It gave out constraints of power-enhanced requirements to navigation satellites. It proposed suggestions to power-enhanced implementations of Chinese global navigation satellites, finally. Combined with the status of our navigation satellite system, it compared Chinese global navigation satellites to GPSIII at ground receiving signal, coverage areas of power-enhanced, achievement difficulty of power-enhancement, Doppler collision problem. It summarized the paper and gave out the conclusions, finally.

孙进. 导航卫星系统功率增强技术与覆盖范围研究[J]. 测绘学报.