Simplification of Mapping Function For Global Positioning System (GPS)Tropospheric Delay

Sakidin, Hamzah and Tay, Choo Chuan (2010) Simplification of Mapping Function For Global Positioning System (GPS)Tropospheric Delay. In: RCAEM 2012, 2012, Kuala Lumpur.

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The mathematical modeling on the mapping function models should be revised and also simplified to improve the calculation of the GPS tropospheric delay. The zenith tropospheric delay can be amplified by a coefficient factor called mapping function to form total tropospheric delay. There are many mapping functions have been established to calculate the scale factor which can affect the total tropospheric delay. Most of the modern models have separated mapping Junctions for the hydrostatic and the wet part. Recently, the developed tropospheric delay models use mapping functions in the form of continued fractions which is quite tedious in calculation. There are 26 mathematical operations for Neill Mapping Function (NA4F) to be done before getting the mapping function scale factor. There is a need to simplify the mapping function models to allow faster calculation and also better understanding of the models. The mapping functions for NMF models for hydrostatic and wet components are given in a form of continued fraction, whereby the elevation angle is the variable. These mapping function models have been selected to be simplified, because of their ability to achieve mapping function scale factor, down to 3 degree of elevation angle.

Item Type: Conference or Workshop Item (Paper)
Subjects: Q Science > Q Science (General)
Divisions: Faculty of Electrical Engineering > Department of Control, Instrumentation & Automation
Depositing User: Choo Chuan Tay
Date Deposited: 13 Mar 2013 03:06
Last Modified: 28 May 2015 03:46
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