Title :
Selection of Pulse Repetition Frequency in High-Precision Oceanographic Radar Altimeters
Author :
Ka, Min-Ho ; Baskakov, Aleksandr I.
Author_Institution :
Dept. of Electron. Eng., Korea Polytech. Univ., Siheung
fDate :
7/1/2007 12:00:00 AM
Abstract :
A readily computable formula to perform versatile analysis of the nonstationary pulse-to-pulse correlation properties of ocean altimeter returns is presented. Using this formula, the correlation coefficient and correlation interval depending on the reference time, sea state, and system parameters have been analyzed. The results have suggested that the pulse repetition frequency should adaptively be adjusted to the sea state to ensure precise altitude measurements.
Keywords :
oceanographic equipment; radar altimetry; correlation coefficient; correlation interval; high-precision oceanographic radar altimeter; nonstationary pulse-to-pulse correlation; pulse repetition frequency; sea state; Decorrelation; Estimation theory; Frequency; Oceans; Pulse measurements; Rough surfaces; Sea measurements; Sea surface; Spaceborne radar; Thumb; Correlation interval; high precision; nonstationary correlation function; oceanography; pulse radar altimeter;
Journal_Title :
Geoscience and Remote Sensing Letters, IEEE
DOI :
10.1109/LGRS.2007.895679
