Title :
Delay super resolution for GNSS-R
Author :
Clarizia, Maria Paola ; Bisceglie, Maurizio Di ; Galdi, Carmela ; Gommenginger, Christine ; Landi, Luciano
Author_Institution :
Univ. degli Studi del Sannio, Benevento, Italy
Abstract :
Global Navigation Satellite System Reflectometry (GNSS-R) is a new approach for earth observation using signals of opportunity in a bistatic configuration. The system, in the configuration of interest, exploits the 10 bits PN sequence of the GPS system to generate Delay/Doppler maps that are useful for monitoring the sea state. One of the open problems is that the achievable delay and Doppler resolution is limited by the GPS waveform. We will show that, exploiting a MUSIC-based algorithm, it is possible to move further the limits for the achievable delay and Doppler resolution.
Keywords :
Global Positioning System; geophysical signal processing; oceanographic techniques; satellite navigation; Doppler maps; Doppler resolution; GNSS-R; GPS waveform; Global Navigation Satellite System Reflectometry; MUSIC-based algorithm; bistatic configuration; delay maps; delay super resolution; earth observation; sea state; Delay estimation; Delay systems; Earth; Frequency; Global Positioning System; Propagation delay; Reflectometry; Satellite navigation systems; Sea surface; Signal resolution; Bistatic; GNSS-R; Music; Superresolution;
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.2009.5417713
