Application of non-uniform B-Splines of 2-nd order for description vertical distribution of sound speed in water

• Autorzy: Makar A.
• Języki publikacji: EN

Abstrakty

EN

Modeling of the vertical distribution of the sound speed in water is useful during determination of the depth on the basis of the acoustic method, modeling refraction phenomena and determination the trajectory of the acoustic wave. For modeling 1D functions (vertical distribution of the sound speed) and 2D (surface of the sea bottom for hydrography) uniform B-Splines was used. In this paper description of uniform B-Splines and description and application of non-uniform B-Splines have been presented.

Słowa kluczowe

EN

hydroacoustics; B-splines; sound speed

• Wydawca: Polskie Towarzystwo Akustyczne. Oddział Gdański
• Czasopismo: Hydroacoustics
• Rocznik: 2009
• Tom: Vol. 12
• Strony: 133--140
• Opis fizyczny: Bibliogr. 17 poz., rys., wykr.

Twórcy

autor

Makar A.

• Polish Naval Academy 69, Śmidowicza Str., 81-103 Gdynia, Poland,

Bibliografia

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• [4] A. Makar, Influence of the Vertical Distribution of the Sound Speed on the Accuracy of Depth Measurement, Reports on Geodesy, 5 (60), Warsaw, pp. 31-34, 2001.
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• [6] A. Makar, Vertical Distribution of the Sound Speed and its Mean Value in Depth Measurements Using a Single-beam Echosounder, Reports on Geodesy, 2 (62), Warsaw, pp. 79-85, 2002.
• [7] A. Makar, Methods of Movement Disruptions Compensation of Sounding Vessel, Reports on Geodesy, 1 (68), Warsaw, pp. 27-34, 2004.
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• [9] A. Makar, WGS-84 Ellipsoid as Vertical Reference System for Hydrographic Surveys. Reports on Geodesy, 2(83), 2007, pp. 95-102, 2007.
• [10] A. Makar, M. Zellma, Application of splined functions in bathymetry (in Polish only – original title: Wykorzystanie funkcji sklejanych w batymetrii), VII Scientific-Technical Conference of Marine Traffic Engineering, Szczecin, pp. 261-270, 1999.
• [11] A. Makar, M. Zellma, Dynamic system’s identification on the basis of basic splines of 5-th order, New Trends of Development in Aviation, Koszyce, pp. 146-154, 2000.
• [12] A. Makar, M. Zellma, Regression Function Described by Basic Splines of 1-st Order for Determination of Vertical Distribution of Sound Speed in Water, X International Scientific and Technical Conference on Sea Traffic Engineering, Szczecin, pp. 175-187, 2003.
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• [17] M. Zellma, A. Makar, Modelling of the Dynamic Systems by Means of the Basic Splines, International Carpathian Control Conference, Krynica, 2001.