Generalised noise cancellation method for wave estimation by HF surface wave radar

Wang, Wei, and Wyatt, Lucy (2014) Generalised noise cancellation method for wave estimation by HF surface wave radar. IET Radar Sonar And Navigation, 8 (6). pp. 622-631.

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High frequency (HF) surface wave radar (HFSWR) has been demonstrated, in many experiments and papers, to be a powerful tool for sea-state detection. However, the availability and accuracy of the HFSWR measurements are limited by various unwanted clutter and interferences (collectively called 'noise') that contaminate the radar received signals, especially for wave estimation. This study extends the image recognition, segmentation and subspace projection method for removing the radio frequency interference developed in the previous study, to the mitigation of more general types of noise. Applications of this generalised method are presented. The results show that the noise can be largely removed regardless of their correlation in Doppler or range, their size in the range-Doppler domain and whether they are homogeneous or inhomogeneous. The effectiveness of all these approaches is validated by using data obtained with the Pisces HF radar, which is a high-performance radar developed for long-range wave measurement, operating in the lower half of the HF band (5-10-MHz).

Item ID: 36072
Item Type: Article (Research - C1)
ISSN: 1751-8792
Date Deposited: 12 Nov 2014 11:25
FoR Codes: 09 ENGINEERING > 0906 Electrical and Electronic Engineering > 090609 Signal Processing @ 50%
09 ENGINEERING > 0911 Maritime Engineering > 091103 Ocean Engineering @ 40%
04 EARTH SCIENCES > 0405 Oceanography > 040503 Physical Oceanography @ 10%
SEO Codes: 96 ENVIRONMENT > 9611 Physical and Chemical Conditions of Water > 961104 Physical and Chemical Conditions of Water in Marine Environments @ 70%
96 ENVIRONMENT > 9610 Natural Hazards > 961006 Natural Hazards in Marine Environments @ 15%
85 ENERGY > 8505 Renewable Energy > 850508 Wave Energy @ 15%
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