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Real-Time On-Board Processing Validation of MSPI Ground Camera ImagesThe Earth Sciences Decadal Survey identifies a multiangle, multispectral, high-accuracy polarization imager as one requirement for the Aerosol-Cloud-Ecosystem (ACE) mission. JPL has been developing a Multiangle SpectroPolarimetric Imager (MSPI) as a candidate to fill this need. A key technology development needed for MSPI is on-board signal processing to calculate polarimetry data as imaged by each of the 9 cameras forming the instrument. With funding from NASA's Advanced Information Systems Technology (AIST) Program, JPL is solving the real-time data processing requirements to demonstrate, for the first time, how signal data at 95 Mbytes/sec over 16-channels for each of the 9 multiangle cameras in the spaceborne instrument can be reduced on-board to 0.45 Mbytes/sec. This will produce the intensity and polarization data needed to characterize aerosol and cloud microphysical properties. Using the Xilinx Virtex-5 FPGA including PowerPC440 processors we have implemented a least squares fitting algorithm that extracts intensity and polarimetric parameters in real-time, thereby substantially reducing the image data volume for spacecraft downlink without loss of science information.
Document ID
20100031266
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
Pingree, Paula J.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Werne, Thomas A.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Bekker, Dmitriy L.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 25, 2013
Publication Date
June 22, 2010
Subject Category
Instrumentation And Photography
Meeting Information
Meeting: ESTF 2010 (Earth Science Technology Forum)
Location: Arlington, VA
Country: United States
Start Date: June 22, 2010
Distribution Limits
Public
Copyright
Other
Keywords
Earth Sciences Decadal Survey
on-board signal processing
Aerosol-Cloud-Ecosystem (ACE)
polarimetry data

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