GPS/INS/Odometer Data Fusion for Land Vehicle Localization in GPS Denied Environment

Mohammed Aftatah, Abdelkabir Lahrech, Abdelouahed Abounada and Aziz Soulhi

Modern Applied Science, 2017, vol. 11, issue 1, 62

Abstract: The main purpose of this paper is to present a fusion approach to bridge the period of Global Positioning System (GPS) outages using two proprioceptive sensors that are the Inertial Navigation System (INS) and the odometer in order to assure a continuous localization for land vehicle in urban areas where GPS signal blockage is very often. Odometer and GPS measures are exploited to correct inertial sensor errors. In fact, during GPS availability, INS is integrated with GPS to provide accurate localization solution; whereas during GPS outages, the odometer measurements are used to correct the INS error thereby improving the positioning accuracy and assuring the continuity of navigation solution. The problem of estimation of vehicle localization is realized by Kalman Filter (KF) that merges sensor measurements. The paper thus introduces results from simulation and real data.

Date: 2017
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