| 论观测值的可靠性度量 |
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| 引用本文： | 王金岭,陈永奇.论观测值的可靠性度量[J].测绘学报,1994,23(4):252-258. |
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| 作者姓名： | 王金岭 陈永奇 |
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| 作者单位： | 武汉测绘科技大学!430070 |
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| 摘 要： | 国内外许多文献采用观测值的多余观测分量定义可靠性指标，并且认为多余观测分量的值域为区间［０，１］。本文的研究表明，对于相关值而言，上述结论不一定成立，本文借助于一般平差模型，考虑了观测值之间可能存在的相关性，导出了具有普遍意义的观测值可靠性度量指标，深入讨论了多余观测分量与可靠性指标的关系，作为可靠性指标的应用例子，讨论了ＧＰＳ相位三次差分法探测周跳的能力。
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| 关 键 词： | 误差 观测值 可靠性 度量标准 |
ON THE RELIABILITY MEASURE OF OBSERVATIONS |
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| Wang Jinling,Chen Yongqi.ON THE RELIABILITY MEASURE OF OBSERVATIONS[J].Acta Geodaetica et Cartographica Sinica,1994,23(4):252-258. |
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| Authors: | Wang Jinling Chen Yongqi |
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| Abstract: | :Reliability (including internal and external) is one of the quality measur-es of adjusted systems. The redundancy number is usually used as a reliabilitymeasure, and it is commonly stated in literature that the value of a redundancynumberlis always between 0 and 1. This study, however, indicates that the redun-dancy number may be beyond that range for correlated observations,and that thereliability can not be correctly measured by the redundancy number. A new reli-ability measure has been derived by the authors, which is suitable for correla-ted observations.The relationship between the redundancy number and the reli-ability measure has also been discussed in detail. Finally, the reliability mea-sure is used to evaluate the ability for detecting cyde-slips in a set of GPS tripledifference observations. |
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| Keywords: | :Correlated observations Redurdancy number Reliability mea-sure |
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