Title :
Dependence of HF surface wave radar sea clutter on sea state
Author_Institution :
Defence R&D Canada, Ottawa, Ont., Canada
Abstract :
An empirical relationship between the power of the second-order sea clutter in HF surface wave radar (HFSWR) and the average ocean wave height is derived from the data measured from a trial using the HFSWR at Cape Race, Newfoundland and a TriAxys wave buoy. The power of the second-order sea clutter between Bragg lines, measured at the radio frequency of 3.1 MHz, is found to depend linearly, in logarithmic scale, on average ocean wave height. Significant ocean wave height could be used as an indicator for sea state. The linear relationship therefore provides a gauge of the radar performance in ship detection with respect to sea state.
Keywords :
HF radio propagation; ocean waves; oceanographic techniques; radar clutter; radar detection; ships; spectral analysis; 3.1 MHz; Bragg lines; Cape Race; HF surface wave radar; HFSWR; Newfoundland; TriAxys wave buoy; average ocean wave height; radar performance; radio frequency; sea clutter; sea state; second-order sea clutter power; ship detection; Frequency measurement; Hafnium; Ocean waves; Power measurement; Radar clutter; Radar measurements; Radio frequency; Sea measurements; Sea surface; Surface waves;
Conference_Titel :
RADAR 2002
Conference_Location :
Edinburgh, UK
Print_ISBN :
0-85296-750-0
DOI :
10.1109/RADAR.2002.1174653
