Title :
Anomaly detection in VHF radar measurements
Author :
Cochin, Veronique ; Mercier, Grégoire ; Garello, René ; Mariette, Vincent ; Broche, Pierre
Author_Institution :
ACTIMAR, Brest
Abstract :
The present work develops a new aspect in the use of HF radar as a tool for real time operational oceanography. We propose to implement new algorithms for detecting anomalies (outliers) on VHF radar data. Perspectives of such work are to detect changes in sea surface, such as ship or oil pollution. In this preliminary work, no information are given about the anomalies. We propose to study new detection methods based on Support Vector expansion to perform a binary separation between observations. This technique is well adapted to HF radar observations that are never statistically representative but give a good temporal resolution
Keywords :
marine radar; ocean waves; oceanographic techniques; radar signal processing; support vector machines; Support Vector expansion; VHF radar measurement; anomaly/outlier detection algorithm; binary separation; littoral surveillance; oil pollution; real time operational oceanography; sea surface change detection; ship; temporal resolution; Doppler radar; Hafnium; Marine vehicles; Oceans; Pollution measurement; Radar detection; Radar measurements; Sea measurements; Sea surface; Surface waves;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2004. IGARSS '04. Proceedings. 2004 IEEE International
Conference_Location :
Anchorage, AK
Print_ISBN :
0-7803-8742-2
DOI :
10.1109/IGARSS.2004.1368623