Title :
Spaceborne imaging radar-C instrument
Author :
Huneycutt, Bryan L.
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
fDate :
3/1/1989 12:00:00 AM
Abstract :
The Shuttle Imaging Radar (SIR)-C instrument has been designed to obtain simultaneous multifrequency and simultaneous multipolarization radar images from a low Earth orbit. It is a multiparameter imaging radar that will be flown during two different seasons. The instrument has been designed to operate in innovative modes such as the squint mode, the extended aperture mode, and the scansar mode, and to demonstrate innovative engineering techniques such as beam nulling for echo tracking, pulse repetition frequency-hopping for Doppler centroid tracking, frequency step chirp generating, for polarization differentiation, and block floating-point quantizing for data compression. The instrument has also been designed to allow flexibility in selection of radar parameters such as pulsewidth and beamwidth in the tradeoff of image quality parameters. These SIR-C capabilities are to be directly transferred to the proposed Earth Observing System (Eos) synthetic aperture radar
Keywords :
antenna arrays; antenna radiation patterns; geophysical equipment; radar antennas; radar applications; radar measurement; radar systems; remote sensing; Doppler centroid tracking; Earth Observing System; Eos; SIR-C; Shuttle Imaging Radar; beam nulling; beamwidth; block floating-point quantizing; data compression; echo tracking; extended aperture mode; frequency step chirp generating; geophysical equipment; image quality; multiparameter imaging radar; multipolarization radar images; polarization differentiation; pulse repetition frequency-hopping; pulsewidth; scansar mode; squint mode; synthetic aperture radar; Apertures; Data engineering; Design engineering; Doppler radar; Frequency; Instruments; Low earth orbit satellites; Radar imaging; Radar tracking; Spaceborne radar;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
