Concepts and Perspectives on Navigation Satellite Autonomous Health Management System based on Cogni

来源 :第六届中国卫星导航学术年会 | 被引量 : 0次 | 上传用户:macrosoft
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  The navigation satellite navigation autonomous health management system based on cognitive technology is an advanced intelligent spatial information processing system.It takes the working mode and mechanism of the human brain as reference,has more complex information and environment sensing ability,adaptively learns according to the information and environment statistic change,and effectively improves “behavioral effect feedback” capabilities of many navigation satellites in the system and the independent operation management capabilities of navigation satellite systems.Therefore it is an important direction for the development of future navigation satellite systems.Aimed at the building requirements of global satellite navigation system constellation configuration and navigation satellite function and based on exploring the cognitive technical background of navigation satellite system,the basic concepts and content of the autonomous health management system of navigation satellite based on cognitive technology are proposed.Through analyzing the existing information flow of navigation satellite,the idea of applying cognitive technology in cognitive technology-based navigation satellite health management system and the key technologies will be discussed and solved,and development recommendations of the cognitive technology-based navigation satellite health management system are given.
其他文献
在现代化的GPS全球卫星导航系统IS-GPS-800协议中的L1C导航电文是没有固定帧头的结构,相比于未现代化之前的L1CA等频点,L1C的帧同步比较难以实现.L1C的帧同步虽然可以用校对电文信息(TOI等)的方法来实现,但是这些方法所需的时间比较长.相对而言方便快捷的方法则是使用导频通道子码的卷积运算来完成的.本文在子码卷积方法的基础上,提出了两种快速帧同步的方法,并研究了在不考虑噪声带宽和弱信
基于通用通信卫星的转发式导航系统CAPS是二代中国卫星导航系统的组成部分之一,随着现代化卫星导航技术的发展,CAPS也在不断发展、完善,其应用也越来越广泛且多样化,其中许多应用都要求分米甚至厘米级的定位精度.为了达到这样的定位精度要求,需要有高精度的伪距测量值,为此研发了基于载波相位测量技术的三频导航接收机,采用三频的目的是为了对电离层误差进行修正并快速解算整周模糊度,从而得到精确的伪距测量值.本
可视卫星数、位置精度因子(PDOP值)和系统可用度是评估星座设计的重要指标.本文首先对区域导航星座的主要性能进行了分析和仿真;然后分别针对中高轨卫星(MEO),静止轨道卫星(GEO)和倾斜轨道卫星(IGSO)卫星失效后,分析了导航星座性能的变化;最后基于分析结果,给出了卫星在轨备份的建议.
In this paper,we propose a systematic frameworkfor theground moving target autonomous positioning witha Unmanned Aerial Vehicle (UAV).The proposed framework consists of the ground moving target positi
如何实现有源宽带低噪声的接收,尤其是共用宽带多频段的接收,一直以来都是一个关键而棘手的问题.本文设计了一种导航复合通信天馈系统,顶端采用一款成熟的UHF发射天线,天线的馈线从下端的辐射体穿过,实现UHF的通信收发功能,下端采用穿管的金属外护筒实现天线级联,并通过有源匹配网络后为多个频段设备提供导航信号接收.仿真和实测结果表明级联天线在工作频带400~470MHz内的VSWR均在2.5以下,经过下端
Commonly,X-ray Pulsar Navigation should observe three pulsars to determine the position of the detector.It leads to at least three detectors should be equipped.In this paper,an initial orbit determina
The widespread deployment of Wi-Fi communication makes it easy to find Wi-Fi access points in the indoor environment,which enables us to use them for Wi-Fi fingerprint positioning.Although much resear
The Dual One Way Ranging (DOWR) technique with PRN-code,which can remove the effect of time-asynchronous and improve ranging precision,is widely used in Inter-Satellite-Ranging.The ranging value based
This paper mainly focuses on the combination of station coordinates and ERPs and the realization of TRF based on four technologies GPS,VLBI,SLR and DORIS,and discussed some key points including the co
This paper develops a new cycle slip detection and repair method that is based on polynomial-fitting ionosphere-free combination and ionosphere total electron contents(TEC) rate(TECR),and uses dual-fr