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Performance Evaluation of Delay Locked Loop based GPS Multipath Estimation Algorithm over Low Latitude Region


Dr.N. Swathi, Dr.V.B.S. Srilatha Indira Dutt and Dr.G. Sasibhushana Rao
Abstract

GNSS has been modernizing rapidly which lead to less sources of error. There exist many algorithms to mitigate atmospheric and other errors. Whereas Multipath Error (MPE) and shadowing are still major and time dominant providers to error. It is very hard to model MPE because of its dependency on receiver-satellite geometry and its non-correlation. Many procedures are proposed to moderate MPE by different analysts. So, it is required to find a better algorithm to mitigate MPE effectively. Hence, in this paper, we are going to discuss about Multipath Estimating Delay Locked Loop (MEDLL) algorithm, and how its performance gets affected by various parameters like number of correlators, Data rate, Additive noise and Time delay.

Volume 12 | 07-Special Issue

Pages: 2395-2403

DOI: 10.5373/JARDCS/V12SP7/20202368