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- The broadcast ephemeris,which is the basic of satellite navigation,must be precise and real time. 导航卫星广播星历是卫星导航定位的基础,要求有较高的精度和实时性。
- The variations of orbit error of GPS broadcast ephemeris from 2002 to 2006 are analyzed, and some effects on the orbit accuracy are discussed. 摘要分析了2002-2006年GPS广播星历轨道误差的变化情况，并对其影响因素进行了讨论。
- Through example, analyzing positioning precise influence which broadcast ephemeris and precise ephemeris process different length baselines. 实例分析了广播星历和精密星历对于不同长度基线相对定位精度的影响。
- The computation of DGPS corrections starts from the computation of GPS satellite position with using broadcast ephemeris information. 差分修正量的计算,需先由广播星历的资料来计算GPS卫星的位置,然后从已知地面点位置,求得差分修正量。
- The clock precise of forecasting broadcast ephemeris is validated using the data of 2005.Some useful conclusions are presented. 采用2005年的观测数据对广播星历预报钟差精度进行了评估,给出了有益的结论。
- The results show that the orbit accuracy of GPS broadcast ephemeris in 2006 was much better than that in 2002 especially after the implementation of L-AII project. 分析表明，由于L-AII计划的实施和其他工作，2006年GPS广播星历的轨道精度较2002年有了较大的提高。
- In this paper, we describe two methods for computing the coordinates and velocities of satellites by using the broadcast ephemeris of the "transit" satellites. 本文介绍利用子午卫星的广播星历表计算卫星坐标和速度的两种方法。
- In order to calculate the satellite orbit in GPS data process,it is more efficient to use polynomial methods to fit the orbit curve with the parameters of GPS broadcast ephemeris. 利用多项式拟合的方法计算GPS卫星在轨坐标时,使用正交多项式可有效避免计算过程中出现的病态矩阵。
- The results indicate that taking into account harmony terms cannot improve the precision and efficiency of GPS broadcast ephemeris parameter fitting, so the harmony term can be ignored in application. 计算结果表明，考虑调和项并不能提高GPS广播星历参数拟合的精度和效率，实际应用时应忽略调和项的影响。
- AN APPLICATION OF THE TRANSIT BROADCAST EPHEMERIS 子午卫星广播星历表的一种应用
- The influence of broadcasting ephemeris error is estimated from the satellite-station double difference technology. 最后，进行了试验和技术分析。
- Validating Satellite Broadcast Ephemeris by SLR Data 利用SLR数据进行广播星历精度评估
- The research of satellites broadcast ephemeris parameters fitting arithmetic 广播星历参数拟合算法研究
- Precision Analysis of Broadcast Ephemeris for Medium and High Orbit Satellites 中高轨卫星广播星历精度分析
- Use of a Group of Broadcast Ephemeris to Determine Timely the Position of the GPS Satellite 应用单组广播星历适时确定GPS卫星的位置
- Comparison of GPS satellite orbit numerical integration with broadcast ephemeris and IGS precise ephemeris GPS卫星轨道数值积分与广播星历及IGS精密星历的比较
- The chairman's speech will be broadcast nationwide. 主席的讲话将向全国广播。
- GPS Satellite Coordinates Calculating with Chebyshev Polynomial Simulation Based on a Group of GPS Broadcast Ephemeris 基于单组广播星历的GPS卫星在轨位置的拟合计算
- She missed the broadcast, she forgot to listen in. 她错过了那个节目的播出，她忘记收听了。
- She is an announcer in TV broadcast. 她是电视台的一名主持人。
