학술논문

Development of a two dimensional synthetic aperture radiometer at L-band
Document Type
Conference
Source
IGARSS 2000. IEEE 2000 International Geoscience and Remote Sensing Symposium. Taking the Pulse of the Planet: The Role of Remote Sensing in Managing the Environment. Proceedings (Cat. No.00CH37120) Geoscience and remote sensing Geoscience and Remote Sensing Symposium, 2000. Proceedings. IGARSS 2000. IEEE 2000 International. 7:2994-2996 vol.7 2000
Subject
Geoscience
Signal Processing and Analysis
Radiometry
Instruments
Testing
Aerospace engineering
Aircraft propulsion
L-band
Receiving antennas
Antenna arrays
Polarization
Patch antennas
Language
Abstract
A synthetic aperture radiometer that uses aperture synthesis in two dimensions is being built as part of NASA's Instrument Incubator Program by a team at the Goddard Space Flight Center, the University of Massachusetts and Quadrant Engineering Inc. This will be an aircraft instrument operating at L-band. It is being designed to operate in a nadir-pointing mode, although other options are possible. The antenna will consist of an array of dual polarized patch antennas and each patch will have its own receiver. The IF from each receiver will go to a central processor where the signal will be digitized and the correlations performed. Breadboards for the components are being tested and it is expected that the instrument will be ready for flight tests by summer of 2001.