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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Feng-Qi-Wu, Wang Xin, Zhang Xiao-Fei, Xing Xiao-Ji, Zhang |
| Copyright Year | 2015 |
| Abstract | In order to solve the problem of the passive direction-finding and ranging in a sonar system of the small autonomous underwater vehicle (AUV), the optimized beam-forming (OBF) and the geometric positioning are proposed. Considering the strong target interference, the multiple thresholds are used for mitigating the interference, produced by the strength measurement and duration of signals, and then a beam-forming with receiving signals is done, and three of the biggest beams are interpolated to find the incident direction of signals. The distance between AUV and pingers are calculated by trigonometric function in geometric positioning algorithm, in the condition of keeping the AUV moving along mid-perpendicular between two pingers. The experiments were implemented in an anechoic tank and a swimming pool to evaluate the performance of the ranging and direction finding of the detection system, obtaining the detection mean square error within 2.5°. This work shows that the simultaneous measurement of the multiple underwater pinger' signals is feasible by using this underwater acoustic detection system. |
| Starting Page | 1828 |
| Ending Page | 1831 |
| File Size | 338860 |
| Page Count | 4 |
| File Format | |
| e-ISBN | 9781467377232 |
| DOI | 10.1109/IMCCC.2015.389 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2015-09-18 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | AUV Array signal processing Navigation Passive direction-finding and ranging Interference Position measurement Acoustic measurements Distance measurement Optimized beamforming Underwater acoustics |
| Content Type | Text |
| Resource Type | Article |
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