Title :
Adapting the sir algorithm to ASCAT
Author :
Lindsley, Richard D. ; Long, David G.
Author_Institution :
MERS Lab., Brigham Young Univ., Provo, UT, USA
Abstract :
Scatterometers have been launched primarily to measure ocean winds. The value of scatterometer data is increased by application of the SIR (Scatterometer Image Reconstruction) algorithm. The SIR algorithm enhances the effective resolution of the scatterometer data to support its use for other studies. SIR has been used successfully on several scatterometers, including QuikSCAT. In this paper, we describe how the SIR algorithm is adapted to ASCAT data. Using SZF data from ASCAT leads to the best resolution enhancement. SIR requires an estimate of the spatial extent for each measurement. We detail our method to estimate an approximate spatial response function for each ASCAT measurement. Finally, SIR parameters are tuned for use with ASCAT.
Keywords :
image enhancement; image reconstruction; image resolution; ASCAT; QuikSCAT; SIR algorithm; ocean winds; resolution enhancement; scatterometer image reconstruction; scatterometers; Approximation methods; Pixel; Radar measurements; Sea measurements; Spaceborne radar; Spatial resolution; Image reconstruction; Remote sensing; Spatial resolution enhancement;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2010 IEEE International
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-9565-8
Electronic_ISBN :
2153-6996
DOI :
10.1109/IGARSS.2010.5650207