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Application of square Msplit estimation in determination of vessel position in coastal shipping

Zienkiewicz M. H., Czaplewski K.

Polish Maritime Research

2017

nr 2

3--12

The main aim of this paper is to assess the possibility of using non-conventional geodetic estimation methods in maritime navigation. The research subject of this paper concerns robust determination of vessel’s position using a method of parameters estimation in the split functional model (Msplit estimation). The studies performed will help in finding out if and in which situations the application of Msplit estimation as the method for determining vessel’s position is beneficial from the perspective of navigation safety. The results obtained were compared with the results of traditional estimation methods, i.e. least squares method and robust M-estimation.

Example of Robust Free Adjustment of Horizontal Network Covering Detection of Outlying Points

Zienkiewicz M. H., Bałuta T.

Technical Sciences / University of Warmia and Mazury in Olsztyn

2013

nr 16(3)

179--192

This paper presents the method of detecting outlying reference points by applying robust free adjustment. The article contains the theoretical basis of the robust free adjustment. Theoretical considerations are supplemented by a numerical example showing the possible practical applications. In this paper is also included example, which presents detecting of reference points contaminated by gross error, in the case of existence gross errors in observation sets.