A HYBRID APPROACH TO GPS IMPROVEMENT IN URBAN CANYONS

Abstract

 GPS has become important tool in everyday life for safe and convenient transportation of automobiles. Pedestrians use hand held smart devices to know their own position in a town, modern vehicles in intelligent transport systems use relatively sophisticated GPS receivers for estimating current position of vehicle for safe driving. However, in urban areas with canyon of buildings where the GPS satellites are occluded by tall buildings, trees and reflections of GPS signals from nearby vehicles, GPS position estimation becomes poor. In this paper, a hybrid approach to improve GPS data is presented. GPS data is captured at a single point in urban area around which many tall buildings are present. The data is taken under different times of day so that satellites positions are changed and under dynamic environmental conditions so that occlusions are changed.. The data is processed and analyzed using statistical methods. The improvement methods are used to obtain an optimal position estimate among all the measured data points. The improvement results are compared with many publically available datasets. The obtained position estimation improvement made with the hybrid approach are promising.

Authors and Affiliations

Ashwani Kumar Aggarwal

Keywords

Related Articles

 Analysis of Single phase inverter with Boost Converter and Photovoltaic module

 Now a day’s renewable energy like solar, wind becomes very popular. To convert solar energy into electrical energy inverter is an one of the main components. The performance of inverter is different for different...

 Human factors in Aviation: A Survey

 The topic of human factors is continually gaining higher levels of visibility in all spheres of engineering, however, the elements that drive future human interactions with emerging technologies have room for furt...

 3-Level Neutral-Point Clamped Inverters Using Multi Carrier Pulse Width Modulation for FACTS Applications

 In this paper, a novel technique used to keep the voltage across the dc split capacitors of neutral point clamped inverter using multi carrier pulse width modulation and also compensate the reactive power. It can...

A COMPARATIVE ASSESSMENT OF TOPOLOGIES AND THEIR ISSUES IN WIRELESS SENSOR NETWORKS

A Wireless Sensor Network consists of small, self - configur able sensor nodes, which have very small storage capacity and low processing power. Sensor nodes are scattered over a field and they organi...

 A Mechanism to Overcome Link Failures in Single Path Network Architecture

 In a single link network architecture if a link fails, system hunts for the substitute link and transmits the data through that link. It is always necessary for system to search the reason for path break then conf...

Download PDF file
  • EP ID EP117303
  • DOI -
  • Views 150
  • Downloads 1

How To Cite

Ashwani Kumar Aggarwal (0).  A HYBRID APPROACH TO GPS IMPROVEMENT IN URBAN CANYONS. International Journal of Engineering Sciences & Research Technology, 4(10), 358-363. https://europub.co.uk/articles/-A-117303