Title :
Delay-Doppler Maps study over ocean, land and ice from space
Author :
Ferre-Lillo, P. ; Rodriguez-Alvarez, N. ; Bosch-Lluis, X. ; Valencia, E. ; Marchan-Hernandez, J.F. ; Camps, I. Ramos-Perez A
Author_Institution :
Dept. TSC, Univ. Politec. de Catalunya, Barcelona, Spain
Abstract :
This work analyzes the properties of the Delay-Doppler Maps (DDM) derived from the limited experimental data freely available from the UK-DMC. The quality of the received signal over ocean, land and ice is evaluated. In this study the minimum number of incoherent integrations after 1 ms basic coherent integration that are needed to obtain a quality DDM over each surface type is determined using three different techniques: studying the volume of the DDM against the incoherent integration time, observing the signal-to-noise ratio of the signal, and finally analyzing two pixels of the DDM, the maximum and another one noisier, and performing histograms of these points as a function of the incoherent integration time.
Keywords :
Doppler measurement; hydrological techniques; ice; moisture; ocean waves; oceanographic techniques; reflectometry; remote sensing; soil; GNSS reflectometry; Global Navigation Satellite Systems; UK Disaster Monitoring Constellation; UK-DMC; ice surface delay Doppler maps; incoherent integration time; land surface delay Doppler maps; ocean surface delay Doppler maps; signal-noise ratio; space based delay Doppler maps; Delay; Distributed decision making; Global Positioning System; Ice; Information retrieval; Oceans; Performance analysis; Satellites; Signal to noise ratio; Space technology; Delay-Doppler Map; GNSS-R; ice; land; ocean;
Conference_Titel :
Geoscience and Remote Sensing Symposium,2009 IEEE International,IGARSS 2009
Conference_Location :
Cape Town
Print_ISBN :
978-1-4244-3394-0
Electronic_ISBN :
978-1-4244-3395-7
DOI :
10.1109/IGARSS.2009.5418190
