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Geo-Spatial Information Science 2006年第1期9卷 18-23页

作者： CAI Zhiwu ZHAO Dongming CHEN Jinping jiao wenhai Center of Information Application and Development Around World P. O. Box 5136 Beijing 100094 China

Autonomous navigation of navigation satellite is discussed. The method of auto-orbit determination using the erosslink range and orientation parameters constraining is put forward. On the basis of the analysis of its ... 详细信息

关键词： satellite navigations autonomous navigations orbit determination

Precise orbit determination of a maneuvered GEO satellite using CAPS ranging data

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Science China(Physics,Mechanics & Astronomy) 2009年第3期52卷 346-352页

作者： HUANG Yong HU XiaoGong HUANG Cheng YANG QiangWen jiao wenhai Shanghai Astronomical Observatory Chinese Academy of SciencesShanghai 200030China Satellite Navigation and Engineering Center of China Beijing 100081China

Wheel-off-loadings and orbital maneuvers of the GEO satellite result in additional accelerations to the satellite itself. Complex and difficult to model, these time varying accelerations are an important error source of precise orbit determination (POD). In most POD practices, only non-maneuver orbital arcs are treated. However, for some applications such as satellite navigation RDSS services, uninterrupted orbital ephemeris is demanded, requiring the development of POD strategies to be processed both during and after an orbital maneuver. We in this paper study the POD for a maneuvered GEO satellite, using high precision and high sampling rate ranging data obtained with Chinese Area Positioning System (CAPS). The strategy of long arc POD including maneuver arcs is studied by using telemetry data to model the maneuver thrust process. Combining the thrust and other orbital perturbations, a long arc of 6 days’ CAPS ranging data is analyzed. If the telemetry data are not available or contain significant errors, attempts are made to estimate thrusting parameters using CAPS ranging data in the POD as an alternative to properly account for the maneuver. Two strategies achieve reasonably good data fitting level in the tested arc with the maximal position difference being about 20 m.

关键词： CAPS GEO satellite maneuver precise orbit determination (POD)

Determination of the Absolute Rate of Sea Level by Using GPS Reference Station and Tide Gauge Data

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Geo-Spatial Information Science 2005年第3期8卷 220-224页

作者： jiao wenhai GUO Hairong FU Yang WEI Ziqing Xi'an Institute of Surveying and Mapping Xi'an China

The absolute rate of mean sea level of Xiamen area is derived from the data of Xiamen tide gauge station and Xiamen GPS fiducial station of crustal movement observation network of China（CMONC）. The height variation is discussed deeply in this paper, h is shown that height has periodic variations. So the rate of vertical land movement can not be precisely obtained only from several GPS campaigns. It is pointed out that the vertical crustal movement of tide gauge station should be monitored by using long-term continuous GPS observations.

关键词： tide gauge station mean sea level GPS vertical crustal movement

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灰色系统模型在卫星钟差预报中的应用

武汉大学学报（信息科学版） 2005年第5期30卷 447-450页

作者：崔先强焦文海西安测绘研究所西安市雁塔路中段1号710054

分析了二次多项式模型在卫星钟差长期预报中的缺陷,依据灰色系统理论和卫星钟差的变化规律,以较少的观测样本建立了预报卫星钟差的灰色预测模型,并将其与二次多项式预测模型进行分析比较。计算结果表明,两者的短期预报精度基本相当,而... 详细信息

分析了二次多项式模型在卫星钟差长期预报中的缺陷,依据灰色系统理论和卫星钟差的变化规律,以较少的观测样本建立了预报卫星钟差的灰色预测模型,并将其与二次多项式预测模型进行分析比较。计算结果表明,两者的短期预报精度基本相当,而灰色系统模型的长期预报精度要明显地优于二次多项式模型,更适合于实际应用。

关键词：灰色系统卫星钟差二次多项式

Performance Analysis of Multi-GNSS Dynamic Pseudo-range Single Point Positioning

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Performance Analysis of Multi-GNSS Dynamic Pseudo-range Sing...

Assessment of iGMAS final combination with nearly three-year solutions

第十一届中国卫星导航年会

作者： Lijun Wang wenhai jiao Xiaolin Jia College of Geology Engineering and Geomatics Chang’an University Beijing Institute of Tracking and Telecommunications Technology Xi’an Research Institute of Surveying and Mapping

Research on pseudo-range dynamic positioning of 11 signals from the four major satellite navigation systems: GPS, BDS, Galileo and GLONASS by using the ship’s dynamic data in South China Sea. The resu

关键词： Dynamic pseudo-range positioning Time group delay Position dilution of precision The precision of positioning Visible satellites

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Assessment of iGMAS final combination with nearly three-year...

Global Coverage Performance Analysis Based on 4 BeiDou MEO Satellites

第九届中国卫星导航学术年会

作者： Hongliang Cai Xing Li Guo Chen wenhai jiao Beijing Institute of Tracking and Telecommunication Technology Shanghai Astronomical Observatory of Chinese Academy of Sciences School of Geodesy and Geomatics Wuhan University

The international GNSS continuous Monitoring and Assessment System(i GMAS) is developed as a service platform for multi‐GNSS and the Product Integration and Service Center(ISC) is the products reprocess center which provides global users with different time‐delay *** nearly three‐year products from i GMAS,the present paper focuses on the timeliness and precision of *** results show that there are four analysis centers with products timeliness more than 95% and keep stable,currently,the timeliness of combined solutions are better than 99%.Compared to the IGS products,the precision of final orbit and clock products differs between different satellite system,the GPS shows best among the four systems,the precision of orbit and clock are 1 cm and 0.05 ns,respectively,followed by GLONASS,2 cm and 0.1 ns for satellite orbit and clock,respectively,while the BDS IGSO/MEO and Galileo satellites show identical results,the orbit precision of both systems is about 4 cm,and about 0.2 ns for the satellite clock *** precision of combined final tropospheric delay products is 2 mm,with respect to the products from JPL,while the difference between the combinations of i GMAS and IGS is about 2 TECU.

关键词： iGMAS orbit clock bias combination precision

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Global Coverage Performance Analysis Based on 4 BeiDou MEO S...

基于GLONASS星历的预报轨道的误差分析

第四届中国卫星导航学术年会

作者： Xin Liu wenhai jiao Yu Bai Jin Fan Test and Assessment Research Center of China Satellite Navigation Office

Constellation coverage performance is an important indicator of assessing constellation design,therefore this paper intended to provide reference for the deployment of BeiDou Navigation Satellite System in the future by analyzing the coverage performance of BeiDou navigation satellites. This paper studied two navigation constellation performance indicators which are continuous coverage and spatial configuration, and studied the design method for global coverage performance simulation based on 4 BeiDou MEO satellites constellation. Firstly, this paper analyzed global area which can be quadruple covered, time percentage of navigation availability and the PDOP average value within time of navigation availability;Secondly, this paper calculated PDOP value of observation points sharing the same longitude within one regression cycle, made statistical analysis of maximum coverage gap and average coverage gap of each point, and analyzed the variation of PDOP value in different latitudes;Finally, this paper analyzed periodic changes of global coverage area of navigation availability.

关键词： BeiDou Navigation Satellite System MEO navigation satellite PDOP value continuous coverage indicator spatial configuration indicator

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北京航空航天大学学报 2005年第10期31卷 1066-1070页

作者：马骏焦文海肖业伦北京航空航天大学宇航学院北京100083 西安测绘研究所卫星导航定位实验室西安710054

推导了协议地球坐标系下的卫星运动方程.通过分析由GLONASS(Global Navigation Satellite System)广播星历参数确定的卫星预报轨道的拟合精度,指出了摄动力模型的简化、积分器的选择,以及忽略了极移影响等因素是引起拟合误差的主要因素... 详细信息

推导了协议地球坐标系下的卫星运动方程.通过分析由GLONASS(Global Navigation Satellite System)广播星历参数确定的卫星预报轨道的拟合精度,指出了摄动力模型的简化、积分器的选择,以及忽略了极移影响等因素是引起拟合误差的主要因素,其中摄动力模型的简化起最主要的作用.通过对卫星轨道运动方程积分30 min,可知由摄动力模型的简化、积分器和忽略极移影响等因素引起的拟合误差分别为0.827 m,0.224 m和0.025 m.要提高预报轨道拟合的精度,关键是要对摄动力简化特别是地球引力摄动高阶项的截断以及日月引力场简化造成的轨道预报精度损失加以控制.

关键词：全球导航定位系统广播星历协议地球坐标系预报轨道拟合精度

Precise Point Positioning Performance Evaluation of QZSS Centimeter Level Augmentation Service

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Precise Point Positioning Performance Evaluation of QZSS Cen...

Design and Simulation of GNSS Loop Structure Aided by Acoustic MEMS IMU

第十一届中国卫星导航年会

作者： Maosen Hao wenhai jiao Xiaolin Jia Qingrui Tao Chang’an University Beijing Institute of Tracking and Telecommunications Technology Xi’an Research Institute of Surveying and Mapping Chang’anUniversity

The Japanese Quasi-Zenith Satellite System(QZSS) provides Centimeter-Level Augmentation Service(CLAS) through L6 signal. The L6 augmentation messages includes satellite orbit correction, clock correct

关键词： Centimeter-Level Augmentation Service PPP L6 signal Signal-in-Space Accuracy SSR

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Design and Simulation of GNSS Loop Structure Aided by Acoust...