Title :
An innovative algorithm for radar altimeter acceleration bias compensation
Author :
Xi-Yu, Xu ; He-Guang, Liu
Author_Institution :
Graduate Univ. of the Chinese Acad. of Sci., Beijing
Abstract :
In this paper, the characteristics of the alpha-beta filter in altimeter height loop are analyzed. The "acceleration lag bias" is firstly described and the previous approaches are reviewed, and then, an innovative algorithm is designed to compensate the error. Finally, a numerical simulation is presented to test the effectiveness. It is shown that bias can be almost totally compensated by the algorithm.
Keywords :
error compensation; filtering theory; radar altimetry; remote sensing by radar; spaceborne radar; acceleration lag bias; alpha-beta filter; altimeter height loop; error compensation; radar altimeter acceleration bias compensation; Acceleration; Algorithm design and analysis; Equations; Filters; Frequency response; Radar tracking; Satellites; Sea surface; Spaceborne radar; Tracking loops; α-βFilter; Acceleration Lag Effect; Radar Altimeter; Twice-Filtering Algorithm;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2007. IGARSS 2007. IEEE International
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-1211-2
Electronic_ISBN :
978-1-4244-1212-9
DOI :
10.1109/IGARSS.2007.4423678
