Distance Measurement Error Reduction Analysis for the Indoor Positioning System

Abstract

ABSTRACT INTRODUCTION Sputnikovaya In the paper the introduction is followed by the section wireless communication channel model, which describes the model, its impairments and TOA/TDOA channel profile. In Section 3, the deployment of an indoor positioning system and experimental details are discussed. Section 4 includes the results obtained and finally the paper is concluded in Section 5. WIRELESS COMMUNICATION CHANNEL MODEL We can simply model the wireless channel in frequency where β is called phase factor and represented by: where c is the free space speed of light. The received signal will have a time delay τ which depends on range r. The relation between time delay and the distance can be written as follows: The electric field now can be written as: The signal is received through multiple number of paths in a typical wireless communication system. These paths, shown in A typical wireless channel generally comprises these paths and its CIR can be represented by a tapped delay module, shown i