eprintid: 700
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/07/00
datestamp: 2023-11-09 15:48:50
lastmod: 2023-11-09 15:48:50
status_changed: 2023-11-09 15:22:59
type: article
metadata_visibility: show
creators_name: Sakidin, H.
creators_name: Abu Bakar, M.R.
creators_name: Mohamed Shariff, A.R.
creators_name: Md Noorani, M.S.
creators_name: Matori, Abd.N.
creators_name: Mohamed, A.
title: Effect of GPS tropospheric delay Neill mapping function simplification
ispublished: pub
note: cited By 2
abstract: 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 functions 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 (NMF) 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.
date: 2009
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-70349225633&partnerID=40&md5=f1dcf78f23f45bbdcb2c2de2daeb22fb
full_text_status: none
publication: Malaysian Journal of Mathematical Sciences
volume: 3
number: 1
pagerange: 95-107
refereed: TRUE
issn: 18238343
citation:   Sakidin, H. and Abu Bakar, M.R. and Mohamed Shariff, A.R. and Md Noorani, M.S. and Matori, Abd.N. and Mohamed, A.  (2009) Effect of GPS tropospheric delay Neill mapping function simplification.  Malaysian Journal of Mathematical Sciences, 3 (1).  pp. 95-107.  ISSN 18238343