EFFECTS OF CONDITION NUMBER ON PRECISION OF GROUND
STRAIN CALCULATION FOR TRIANGLE METHOD
College of Surveying and Geoinformatics, Tongji University, Shanghai 200092
Key Laboratory of Modern Engineering Surveying, SBSM, Shanghai 200092
Institute of Earthquake Prediction, CEA, Beijing 100036
Abstract The main factors that affect precision of strain tensor calculation by a triangular unit are triangular shape and its orientation in the coordinate system. This paper introduces the condition number of coefficient matrix and discusses its relationship with precision of strain components. The results show that the threshold value of condition number for strain tensor calculation is 4.3 so as to keep that the precision of strain components and displacement data is in same level.
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STRAIN CALCULATION FOR TRIANGLE METHOD[J]. jgg, 2013, 33(6): 126-129.
$author.xingMing_EN,$author.xingMing_EN,$author.xingMing_EN. EFFECTS OF CONDITION NUMBER ON PRECISION OF GROUND
STRAIN CALCULATION FOR TRIANGLE METHOD[J]. jgg, 2013, 33(6): 126-129.
