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Signal Processing for a Lunar Array: Minimizing Power ConsumptionMotivation for the study is: (1) Lunar Radio Array for low frequency, high redshift Dark Ages/Epoch of Reionization observations (z =6-50, f=30-200 MHz) (2) High precision cosmological measurements of 21 cm H I line fluctuations (3) Probe universe before first star formation and provide information about the Intergalactic Medium and evolution of large scale structures (5) Does the current cosmological model accurately describe the Universe before reionization? Lunar Radio Array is for (1) Radio interferometer based on the far side of the moon (1a) Necessary for precision measurements, (1b) Shielding from earth-based and solar RFI (12) No permanent ionosphere, (2) Minimum collecting area of approximately 1 square km and brightness sensitivity 10 mK (3)Several technologies must be developed before deployment The power needed to process signals from a large array of nonsteerable elements is not prohibitive, even for the Moon, and even in current technology. Two different concepts have been proposed: (1) Dark Ages Radio Interferometer (DALI) (2)( Lunar Array for Radio Cosmology (LARC)
Document ID
20110023686
Acquisition Source
Jet Propulsion Laboratory
Document Type
Presentation
External Source(s)
Authors
D'Addario, Larry
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Simmons, Samuel
(Massachusetts Inst. of Tech. Cambridge, MA, United States)
Date Acquired
August 25, 2013
Publication Date
January 5, 2011
Subject Category
Astronomy
Meeting Information
Meeting: National Radio Science Meeting
Location: Boulder, CO
Country: United States
Start Date: January 5, 2011
Distribution Limits
Public
Copyright
Other
Keywords
Fourier Transform Spectrometer
self-healing hardware
fault tolerant embedded systems.
reconfigurable architecture

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