【摘要】 国内外许多文献普遍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，对于相关观测值而言，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。更多还原

【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.更多还原