PublisherIEEE Press. Institute of Electrical and Electronics Engineers
Rights accessOpen Access
The Microwave Imaging Radiometer by Aperture
Synthesis (MIRAS) is the single payload of the European Space
Agency’s (ESA) Soil Moisture and Ocean Salinity (SMOS) Earth
Explorer Opportunity mission. MIRAS will be the first two-dimensional
aperture synthesis radiometer for earth observation.
Two-dimensional aperture synthesis radiometers can generate
brightness temperature images by a Fourier synthesis process
without mechanical antenna steering. To do so and have the
necessary wide swath for earth observation, the array is formed by
small and low directive antennas, which do not attenuate enough
bright noise sources that may interfere with the measurements.
This study analyzes the impact of the radio-frequency emission
from the sun in the SMOS mission, reviews the basic image
reconstruction algorithms, and proposes a technique to minimize
CitationCamps, A. [et al.]. Sun effects in 2D aperture synthesis radiometry imaging and their cancellation. "IEEE transactions on geoscience and remote sensing", Juny 2004, vol. 42, núm. 6, p. 1161-1167.
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