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In order to improve the accuracy of INS/GPS integrated navigation system during GPS signals blockage, an effective and low-cost method is to design the corresponding linear or non-linear predictor to predict the position and velocity errors between INS and GPS during GPS blockage and then to correct the results of INS. Based on the distributed data fusion system, a novel hybrid prediction method that...
Portable GPS mobile terminal antennas suffer from multipath effects. Environmental objects like vehicles, buildings, trees and ground plane (earth) make incident radio waves to reflect, diffract and scatter. Free space antenna parameters therefore, do not give an accurate account of antenna performance in real working scenarios. Statistical models are considered to be an efficient way to replicate...
The portable GPS mobile terminal antennas experience multipath effects as the environmental objects in the vicinity cause the incident radio waves to reflect, diffract and scatter. Therefore, the GPS antenna's performance in real working environment cannot be judged on the basis of traditional electromagnetic analysis of the free space antenna parameters. Moreover, the mobile terminal GPS antennas...
Electromagnetic waves transmitted by GPS satellite arriving at a GPS mobile terminal antenna undergo reflection, diffraction and scattering from various environmental objects in the vicinity. It results in the formation of a multipath arrival of the wave at the receiving mobile terminal antenna. The traditional approaches to analyse the antenna performance are therefore, not capable to describe the...
Incident waves on a GPS antenna on mobile terminals suffer from multipath effects due to reflection, diffraction and scattering from environmental objects including buildings, trees, vehicles and ground. A traditional electromagnetic approach to analyse the GPS antenna performance is therefore unable to give a correct account of the antenna working in a real multipath environment. A new technique...
Global Positioning System (GPS) provides navigation and positioning services to millions of users worldwide. Evolution of GPS mobile receivers added to its popularity and made it an essential element of wireless body area networks (WBAN) and wireless personal area networks (WPAN). Human body is the integral part of such applications and affects their performance. This paper investigates the effects...
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