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Development of an Accurate Positioning System Using Low‐Cost L1 GPS Receivers
Author(s) -
Saeki Masayuki,
Hori Muneo
Publication year - 2006
Publication title -
computer‐aided civil and infrastructure engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.773
H-Index - 82
eISSN - 1467-8667
pISSN - 1093-9687
DOI - 10.1111/j.1467-8667.2006.00433.x
Subject(s) - global positioning system , computer science , antenna (radio) , precision lightweight gps receiver , assisted gps , positioning system , hybrid positioning system , real time computing , displacement (psychology) , wireless sensor network , gps receiver , electronic engineering , embedded system , telecommunications , engineering , computer network , psychology , structural engineering , node (physics) , psychotherapist
The present article reports the development of an accurate positioning system based on GPS technology. This system employs an inexpensive L1 GPS receiver and a small patch antenna. As these devices are very inexpensive and small, they can be attached to an array of sensor nodes of a wireless network sensing system. In the present study, we first develop a program that can be used to estimate the relative positions of receivers and evaluate its performance. Next, a number of experiments were conducted to assess the performance of the inexpensive L1 GPS receiver with a patch antenna. Compared to the results obtained using a sophisticated antenna, the present measurement system, which uses a patch antenna, is less accurate. However, the present system achieves an accuracy of 1–2 cm. This system can be used as a localization system for the sensor nodes or, because of its accuracy, as a displacement monitoring system.