Title :
A stepped-frequency delta-K microwave radar for oceanographic studies
Author :
Popstefanija, Ivan ; McQueen, David S. ; McIntosh, Robert E.
Author_Institution :
Dept. of Electr. & Comput. Eng., Massachusetts Univ., Amherst, MA, USA
fDate :
5/1/1993 12:00:00 AM
Abstract :
A stepped-frequency delta-K (SFDK) radar has been developed to remotely sense ocean surface characteristics. This C-band radar uses frequency diversity and real-time signal processing for improved ΔK measurements. It is shown how frequency diversity can be implemented to enhance the energy of the resonant peak of the cross-product spectrum relative to the background energy. This feature is essential for making real-time measurements of resonant peak frequency over extended time periods. SFDK was used in a month-long field experiment at North Truro, MA. The results presented show that the phase velocity of ocean surface waves could be precisely measured 87% of the time
Keywords :
diversity reception; microwave measurement; ocean waves; oceanographic equipment; radar systems; remote sensing by radar; C-band radar; North Truro; United States; cross-product spectrum; frequency diversity; ocean surface characteristics; phase velocity; real-time signal processing; remote sensing; resonant peak; stepped-frequency delta-K microwave radar; Frequency diversity; Frequency measurement; Oceans; Radar measurements; Radar remote sensing; Radar signal processing; Resonance; Sea measurements; Sea surface; Time measurement;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
