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The methodology for the integration of heterogeneous height differences (from GPS vectors, precise gravimetric geoid and levelling) in one common adjustment via a sequential process of Bayesian Least Squares and constraint equations (BAYCON) was proposed in 1993, at the IAG meeting in Beijing. This paper discusses the adjustment results of the southern Peninsular Malaysia. This methodology has also been used in the assimilation of heterogeneous heights into a national levelling network of Wilayah Persekutuan (Ahmad and Kearsley, 1995), and in the evaluation process of the Australian Height Datum, mainly to determine if it meets the specifications of Third Order Levelling (Kearsley, Ahmad and Chan, 1993). |
