Title :
The microwave interferometric reflectometer. Part II: Back-end and processor descriptions
Author :
Pascual, D. ; Onrubia, R. ; Alonso-Arroyo, A. ; Park, H. ; Camps, A.
Author_Institution :
Dept. of Signal Theor. & Commun., Univ. Politec. de Catalunya & IEEC/UPC, Barcelona, Spain
Abstract :
This paper describes the Microwave Interferometric Reflectometer (MIR) instrument back-end for GNSS reflectometry (GNSS-R) applications. MIR uses the interferometric (iGNSS-R) and conventional (cGNSS-R) techniques for altimetry and scatterometric observations. MIR is intended for low altitude aircrafts, and can track up to 4 pairs of satellite/reflection points simultaneously. The back-end computes real-time 2D cross-correlations in the delay/Doppler plane and performs incoherent averaging after proper delay and Doppler tracking. Initial results from ground measurements are shown.
Keywords :
Doppler measurement; delays; geophysical equipment; geophysical techniques; height measurement; microwave measurement; radiowave interferometry; reflectometry; remote sensing; satellite navigation; Doppler tracking; GNSS reflectometry applications; GNSS-R applications; MIR instrument back-end; altimetry; back-end description; delay-Doppler plane; ground measurement; incoherent averaging; low altitude aircraft; microwave interferometric reflectometer; processor description; real-time 2D cross-correlation; satellite-reflection points; scatterometric observation; Correlation; Delays; Doppler effect; Global Positioning System; Instruments; Microwave theory and techniques; Oceans; Global Navigation Satellite System Reflectometer (GNSS-R); Passive Reflectometry and Interferometry System (PARIS); altimetry;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2014 IEEE International
Conference_Location :
Quebec City, QC
DOI :
10.1109/IGARSS.2014.6947307
