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- Title
An Environmentally-Adaptive Positioning Method Based on Integration of GPS/DTMB/FM.
- Authors
Cong, Li; Wang, Haidong; Qin, Honglei; Liu, Luqi
- Abstract
The Global Positioning System (GPS) yields good precision and availability in open outdoor environment. However, the errors of GPS may suffer degradation in some complex environments, such as forests and urban canyons. To solve this problem, a new positioning method is designed integrating GPS, Digital Terrestrial Multimedia Broadcast (DTMB) and frequency-modulated (FM) radio signal. In this method, the DTMB transmitter acts as a pseudo-satellite to assist GPS positioning. Furthermore, the FM fingerprint positioning is used to correct the positioning bias. An adaptive selection scheme is proposed to provide an optimal integration mode of the sensors. Field experiments in complex environment were carried out for evaluation. Comparing to the GPS-only and GPS + DTMB approach, positioning accuracy was improved by at least 68.21 % and 21.27 % with the proposed method, respectively.
- Subjects
GLOBAL Positioning System; FM radio receivers; RADIO transmitters &; transmission; SIGNAL processing; BROADCAST data systems
- Publication
Sensors (14248220), 2018, Vol 18, Issue 12, p4292
- ISSN
1424-8220
- Publication type
Article
- DOI
10.3390/s18124292