On the Theory about Quality Control Over Surveying Data
OU Jikun · Engineering of Surveying and Mapping · 2001
In this paper. the advance of research on the theory about quality control is analyzed in two sides which consist of reliability and detection of gross errors. A new and united index of reliability is introduced. This index is determined completely by the construction of a system (such as a surveying network), and not be necessary to include the probability element (non-central parameterλ) which is effected on by some factors chosen subjectively. The principle and a practised method of quasi-accurate detection are discussed in detail, and some skills of selecting the quasi-accurate observatins at the first step are proposed.The results of the calculation of the quasi-accurate detection are compared with those of the three models of hypothesis test by an example. It is shown that the hypothesis test may not detect all gross errors but the quasi-accurate detection may do it easily.