Java·Applied·Geodesy·3D

Least-Squares Adjustment Software for Geodetic Sciences

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video [2021/04/15 10:51]
Michael Lösler Videoanleitungen für JAG3D angelegt
video [2021/05/07 15:05] (aktuell)
Michael Lösler Deformation analysis
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 +===== Outliers: Detection, Identification, Adaptation =====
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 +This tutorial demonstrates the common strategy of handling outliers in the data including the three steps of detection, identification and adaptation (DIA) suggested by the pioneer work of Baarda using the software package JAG3D. 
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 +=====  Geodetic networks and point types ===== 
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 +This tutorial focuses on the point types supported by JAG3D. A leveling network is adjusted using known reference points (forced network), and using stochastic points (dynamic network). The differences between the point type are demonstrated.
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 +=====  Deformation analysis ===== 
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 +A deformation analysis (congruence analysis) is performed based on the raw observations of a small leveling network using the software JAG3D. The stability of the reference network - the datum points - is analysed using hypothesis testing within a free network adjustment. According to the DIA approach, a misspecified functional model is detected and an unstable datum point is identified. In the adaptation phase, this point is treated as object point - not defining the datum. Moreover, shift parameters of object points are derived.
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video.1618476718.txt.gz · Zuletzt geändert: 2021/04/15 10:51 von Michael Lösler