广播星历

GPS系列卫星广播星历轨道和钟的精度分析

Precision Analysis on Orbit and Clock of GPS Satellites Broadcast Ephemeris

两种GPS广播星历参数算法的比较

Comparisons of Two Kinds of GPS Broadcast Ephemeris Parameter Algorithms

广播星历和精密星历解算GPS基线成果的比较分析

Comparison of Broadcasting Ephemeris and Precise Ephemeris on GPS Baselines Processing

基于星历拟合的GPS广播星历参数评估分析

Evaluation Analysis on GPS Broadcast Ephemeris Parameters Based on the Ephemeris Fitting

目前使用GPS广播星历进行实时单点定位的三维误差在100米以内，可以满足普通用户定位需求。

Three dimension errors under 100m could fit the demand of normal user .

GPS广播星历轨道误差试验研究

Study on Orbit Error Test of GPS Broadcasting Ephemeris

GPS广播星历误差及其对导航定位精度的影响

Errors of GPS Broadcast Ephemerides and Their Effects on Navigation and Positioning Accuracy

GPS广播星历参数拟合算法

The Fitting Algorithm of GPS Broadcast Ephemeris Parameters

利用地面测轨资料拟合GPS广播星历

The fitting of GPS ephemeris with tracking data

太阳活动对GPS卫星广播星历的影响

Influence of solar activity on GPS broadcast ephemeris

GPS长距离和多测段定位中广播星历的改进方法

Improvement of GPS broadcast ephemerides used for long baseline and multi session relative positioning

利用广播星历计算GPS卫星位置及误差分析

Calculation and error analysis of GPS satellite position by making use of broadcast ephemeris

GPS广播星历与历书的精度比较

Precision Comparison between GPS Broadcast Ephemeris and Almanac

首次采用星站双差分技术试验研究GPS卫星广播星历误差影响值，推导了星站双差解析模型；最后，进行了试验和技术分析。

The influence of broadcasting ephemeris error is estimated from the satellite-station double difference technology .

GPS卫星广播星历的一种应用途径

A way of applying GPS broadcast ephemeris

GPS广播星历误差影响诊断与预测模型研究

The study on the model of the diagnosis forecast for the GPS broadcasting ephemeris error

基于单组广播星历的GPS卫星在轨位置的拟合计算

GPS Satellite Coordinates Calculating with Chebyshev Polynomial Simulation Based on a Group of GPS Broadcast Ephemeris

论述了GPS监测站伪距观测量评定广播星历精度的基本方法。

This paper discusses the essential method of using GPS pseudorange data to assess the precision of broadcast ephemeris .

GPS和GLONASS广播星历参数分析及算法

Research on the Broadcast Ephemeris Parameters of GPS and GLONASS

GPS广播星历能被GPS用户观测实时得到，这对导航和实时定位是非常方便的。

GPS broadcasting ephemeris can be obtained momently by GPS users , it is very convenient for navigation and real-time orientation .

用基于Givens变换的QR分解计算类GPS广播星历参数

Solving similar GPS broadcast ephemeris parameters using Givens transformation

目前，随着GPS技术的发展，广播星历的应用领域在不断拓宽，尤其广播星历在国防及民用事业中的应用十分普遍。

At present , broadcasting ephemeris is applied widely with the development of GPS technique . Especially , it is applied to national defence and civil business generally .

GPS和GLONASS广播星历形式适合于某一类卫星轨道，但存在一定局限性。

The GPS ephemeris and GLONASS ephemeris adapt to some kind of the satellite orbits while they have some shortcoming .

分析了GPS卫星星历误差的影响特征与规律，提出了广播星历误差影响诊断与预测模型。

This paper analyzed the characters and rule of the satellite ephemeris error . It proposes the Model of the diagnosis and Forecast for the GPS broadcasting ephemeris error .

基于GPS广播星历参数，研究了导航卫星广播星历参数的非线性最小二乘拟合算法，并推导了相应的计算公式。

Based on the GPS broadcast ephemeris parameters , the nonlinear least square fit algorithm of broadcast ephemeris parameters was developed , and the relevant calculation formulas were derived .

GLONASS广播星历用户算法精度分析

The Accuracy Analysis of the User Arithmetic GLONASS Broadcast Ephemeris

参考系选择对Kepler广播星历参数拟合精度的影响

Impact of Coordinate Transformation on the Fitting Accuracy of Kepler Broadcast Ephemeris

同时，对GPS定位中的误差来源与改正模型进行了详细讨论，特别对GPS广播星历轨道误差进行了详细试验分析与研究。

Meanwhile , The positioning errors of GPS and its correction models are discussed at length , Particularly the practical example with regard to satellitic ephemeris error is computed and analyzed .

导航卫星一般采用近圆轨道，当卫星轨道偏心率或者轨道倾角接近于零时，利用GPS卫星开普勒轨道根数拟合卫星广播星历会出现一些问题。

When their orbit eccentricity or inclination are near zero , some problems may occur when the GPS Kepler orbit elements fitting method is applied to fit their broadcast ephemeris parameters .

计算表明，对于MEO卫星，2h的广播星历拟合精度（三维位置）可达厘米级；

For MEO satellites , the fitting accuracy for 2 hours fitting arc can reach cm magnitude .