Effect of Density of Measurement Points Collected from a Multibeam Echosounder on the Accuracy of a Digital Terrain Model

Maleika, Wojciech; Pałczyński, M.; Frejlichowski, Dariusz

doi:10.1007/978-3-642-28493-9_48

Cited by 11 publications

(3 citation statements)

References 4 publications

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“…The numerical model of seabed [9][10][11][12][13][14][15] is constructed by interpolating the depth values at the measuring points with the aid of the selected interpolation algorithm. Most usually, the model has the form of a grid of regular squares with depth values attributed to each grid node.…”

Section: High-density Bathymetric Datamentioning

confidence: 99%

MSIS Image Postioning in Port Areas with the Aid of Comparative Navigation Methods

Wawrzyniak

Stateczny²

2017

Polish Maritime Research

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The article presents a method to determine the position of mechanically scanned sonar images by comparing them with the database of simulated synthetic images. The synthetic images are generated from high-density bathymetric data coming from the same fragment of water region, using the ray tracing method. The article discusses the issues related to the choice of the probability function as the method of image comparing which allows to find the correct georeference of the real image. For the correlation method and the logical conjunction method, which are believed to give the best results, detailed studies were performed, including boundary cases. The obtained results of matching are presented in tabular and graphic form.

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Section: High-density Bathymetric Datamentioning

confidence: 99%

MSIS Image Postioning in Port Areas with the Aid of Comparative Navigation Methods

Wawrzyniak

Stateczny²

2017

Polish Maritime Research

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“…Problem of data gathering, post-processing and chart production was discussed by many authors [18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35].…”

Section: Introductionmentioning

confidence: 99%

Radar water level sensors for full implementation of the river information services of border and lower section of the Oder in Poland

Stateczny¹

2016

2016 17th International Radar Symposium (IRS)

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Marine Technology Ltd. developed in 2015 functional-utility program of full implementation of River Information Services (RIS) of border and lower section of the Oder in Poland. The full implementation of the RIS is designed to introduce River Information Services in a wider area compared with the pilot implementation and to develop the scope of provided services. The works are to be based on the base of technologies checked in the pilot implementation, including conclusions which will allow in particular to increase the ergonomics of the system. The provision of information services that will make it possible to increase safety on inland waterways and will significantly increase the level of access and harmonization of navigation information. In the article aspects of microwave sensors -radar water level sensors implementation are described.

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“…These methods make use of a series of differentiated algorithms to establish the values of interpolated parameters at node points. The selection of interpolation method in the case of unevenly distributed measurement data should be determined by a number of features characterising such datasets: the degree of homogeneity of data dispersion, number of points per unit area, population variance (degree of data changeability), and the type of surface reflected by the data (Maleika et al 2012a).…”

Section: Introductionmentioning

confidence: 99%

Moving average optimization in digital terrain model generation based on test multibeam echosounder data

Maleika

2014

Geo-Mar Lett

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The paper presents a new method of digital terrain model (DTM) estimation based on modified moving average interpolation. There are many methods that can be employed in DTM creation, such as kriging, inverse distance weighting, nearest neighbour and moving average. The moving average method is not as precise as the others; hence, it is not commonly comprised in scientific work. Considering the high accuracy, the relatively low time costs, and the huge amount of measurement data collected by multibeam echosounder, however, the moving average method is definitely one of the most promising approaches. In this study, several variants of this method are analysed. An optimization of the moving average method is proposed based on a new module of selecting neighbouring points during the interpolation process-the "growing radius" approach. Tests experiments performed on various multibeam echosounder datasets demonstrate the high potential of this modified moving average method for improved DTM generation.

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Effect of Density of Measurement Points Collected from a Multibeam Echosounder on the Accuracy of a Digital Terrain Model

Cited by 11 publications

References 4 publications

MSIS Image Postioning in Port Areas with the Aid of Comparative Navigation Methods

MSIS Image Postioning in Port Areas with the Aid of Comparative Navigation Methods

Radar water level sensors for full implementation of the river information services of border and lower section of the Oder in Poland

Moving average optimization in digital terrain model generation based on test multibeam echosounder data

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