Pre-zero-epoch covariance matrix in sequential analysis of deformations |
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Authors: | H B Papo A Perelmuter |
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Institution: | 1. Dept. of Civil Eng., Technion, 32000, Haifa, Israel 2. Dept. of Geodesy and Cartography, Univ. of Tel Aviv, Ramat Aviv, Israel
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Abstract: | A sequential adjustment procedure is proposed for the direct estimation of point—velocities in deformation analysis networks. At any intermediate stage of the adjustment the up-to-date covariance matrix of those velocities tells the evolving story of the network in terms of solvability and reliability. A pre-zero-epoch covariance matrix is utilized for a smooth and flexible treatment of two characteristic problems of deformation analysis: - high turnover of points in the network - processing variable and generally incomplete observational batches. A small numerical example is presented at the end as an illustration. |
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