Title :
Polarimetric radiometer-retrieved wind direction ambiguity removal using twice-scan schedule
Author :
Yin, Xiaobin ; Wang, Zhenzhan ; Liu, Jingyi ; Jiang, Jingshan
Author_Institution :
Chinese Acad. of Sci., Beijing
Abstract :
We present a method for evaluating characteristics of wind vector retrieval error´s from polarimetric radiometer measurements such as WindSat. Focus is put on moving wind direction errors due to ambiguous solutions, with azimuth angle being 0 and 180. We propose a method to obtain wind direction according to first and second rank solutions of the first scan and first rank solution of the second scan. This algorithm can avoid ambiguous solution.
Keywords :
measurement errors; microwave measurement; oceanographic techniques; polarimetry; vectors; wind; azimuth angle; first rank solution; ocean surface wind; polarimetric microwave radiometer measurement; second rank solution; twice-scan schedule; wind direction ambiguity removal; wind vector retrieval error; Antennas and propagation; Azimuth; Cost function; Microwave antennas; Microwave measurements; Microwave radiometry; Microwave theory and techniques; Oceans; Sea measurements; Wind forecasting; Ambiguity removal; Ocean; Polarimetric radiometer; Wind direction;
Conference_Titel :
Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2007 International Symposium on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4244-1045-3
Electronic_ISBN :
978-1-4244-1045-3
DOI :
10.1109/MAPE.2007.4393480
