| TBC5.0软件在GPS控制网基线解算中的性能评估 |
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| 作者姓名： | 吴宜桐 |
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| 作者单位： | 青海省地理信息和自然资源综合调查中心 ,青海 西宁 ,810001;青海省地理空间和自然资源大数据中心 ,青海 西宁 ,810001 |
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| 基金项目： | 青海省地理空间信息技术与应用重点实验室资助项目。 |
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| 摘 要： | 针对天宝公司新研发的TBC5.0软件在大型GPS控制网基线解算中的可行性问题,以某航道工程GPS控制网作为研究对象,对TBC(Trimble Business Center)5.0软件在长基线解算中的性能进行评估,并对比分析新版本TBC5.0软件较旧版本TBC3.5软件在模糊度固定方面的不同。结果表明,新版本TBC5.0软件在长基线解算方面的能力得到了较大提高,在1200 km范围内搭载精密星历以及1000 km范围内搭载广播星历时,解算GPS控制网可以得到固定解。基线水平与垂直精度、基线矢量中误差、基线重复率共3个方面的计算结果均表明800 km范围内TBC5.0软件搭载精密星历解算的基线具有较高的稳定性和准确性,且不受精密星历种类的限制。
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| 关 键 词： | TBC5.0软件 基线解算 GPS控制网 性能评估 |
Performance Evaluation of TBC5 .0 Software in Baseline Solution of GPS Control Network |
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| Authors: | WU Yitong |
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| Institution: | (Qinghai Provincial Geographic Information and Natural Resources Comprehensive Survey Center,Xining 810001,China;Geographic Space and Natural Resources Big Data Center of Qinghai Province,Xining 810001,China) |
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| Abstract: | Aiming at the feasibility of the newly developed TBC5.0 software of Tianbao in the baseline calculation of large GPS control network,the GPS control network of a waterway engineering is taken as the research object to evaluate the performance of TBC5.0 software in long baseline calculation.And this paper compares and analyzes the difference between the new version of the TBC(Trimble Business Center)5.0 software and the older version of the TBC3.5 software in terms of fixed ambiguity.The results show that the new version of the TBC5.0 software has a significant improvement in long-term baseline resolution,with precision ephemeris(IGS,IGR,IGU)in the range of 1200 km and broadcast ephemeris(BRDC)in the range of 1000 km.The solution to the GPS control network can get a fixed solution.The calculation results of baseline level and vertical accuracy,error in baseline vector and baseline repetition rate all indicate that the baseline of TBC5.0 software with precise ephemeris solution in 800 km range has high stability and accuracy,and Limited by the type of precise ephemeris. |
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| Keywords: | TBC5 0 software baseline solution GPS control network performance evaluation |
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