Pseudolite Antenna Calibration Algorithm using a Multiple-Antenna Receiver

Title
Pseudolite Antenna Calibration Algorithm using a Multiple-Antenna Receiver
Authors
김종원전상훈김강호기창돈이택진소형민
Keywords
pseudolite; calibration; multi-antenna; cycle ambiguity; phase center
Issue Date
2012-06
Publisher
International Journal of Aeronautical and Space Sciences
Citation
VOL 13, NO 2, 250-259
Abstract
The need for position information in indoor environments has been growing lately. Several indoor navigation systems have been studied. Among them, pseudolite-based indoor positioning systems are one of the best systems to obtain precise position measurements. However, the installation of such systems is very difficult because the calibration of pseudolite antenna position is complicated. For precise calibration, the use of carrier phase measurements is necessary, and whenever carrier phase measurements are considered, problems with cycle ambiguity appear. In this paper, a new approach to calibrate the positions of pseudolite antennas is proposed. By using a multi-antenna, the ambiguity can be eliminated, epoch by epoch, for every single carrier phase measurement. Moreover, the number of calibration points can be reduced down to 3 by use of measurements collected at unknown positions. Using the proposed methods, the process of the collection of carrier phase measurements becomes considerably simple and convenient. Simulation results are presented to verify the proposed algorithms.
URI
http://pubs.kist.re.kr/handle/201004/42853
ISSN
2093274x
Appears in Collections:
KIST Publication > Article
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