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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Kyung-Hun Hwang Do-Eun Kim Dong-Hun Lee Tae-Young Kuc |
| Copyright Year | 2006 |
| Description | Author affiliation: Sch. of Inf. & Commun. Eng., Sung Kyun Kwan Univ., Suwon (Kyung-Hun Hwang; Do-Eun Kim; Dong-Hun Lee; Tae-Young Kuc) |
| Abstract | This paper introduces a simple indoor GPS system using ultrasonic sensor. Conventional ultrasonic GPS systems require at least 3 transmitters, which restricts update time of location information by 5 cycles/sec so that the ultrasonic waves from the 3 transmitters do not overlap. This system consists of 1 transmitter having ultrasonic and RF and 2 receivers. The transmitter irradiates RF and ultrasonic, and the receivers calculate corresponding distance with reference to the RF signal. The 2 distance values are used for determining the location of the transmitter by trigonometrical functions. Due to the characteristics of ultrasonic sensors, noise occurs in sensor values by surrounding temperature or obstacle. Location error is minimized by prediction and correction of the noise with linear Kalman filter. In order to prove the effectiveness of this system, experiments were carried out in a room dimensioned by 3.5 m*2.2 m, wherein the location error showed 2 cm max |
| Starting Page | 2915 |
| Ending Page | 2918 |
| File Size | 3749261 |
| Page Count | 4 |
| File Format | |
| ISBN | 8995003847 |
| DOI | 10.1109/SICE.2006.314996 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2006-10-18 |
| Publisher Place | South Korea |
| Access Restriction | Subscribed |
| Rights Holder | The Institute of Control, Automation and Systems |
| Subject Keyword | Global Positioning System Mobile robots Kalman filters Transmitters Temperature sensors Radio frequency Sensor phenomena and characterization Filtering Sensor systems Error correction Kalman Filter Ultrasonic GPS |
| Content Type | Text |
| Resource Type | Article |
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