Distributed data acquisition and storage architecture for the SuperNova Acceleration Probe

Author

Rivera, Ryan

Author_Institution

Fermi Nat. Accel. Lab., Batavia

Volume

2

fYear

2007

fDate

Oct. 26 2007-Nov. 3 2007

Firstpage

1087

Lastpage

1093

Abstract

The SuperNova acceleration probe (SNAP) instrument is being designed to collect image and spectroscopic data for the study of dark energy in the universe. This paper describes a distributed architecture for the data acquisition system which interfaces to visible light and infrared imaging detectors. The architecture includes the use of NAND flash memory for the storage of exposures in a file system. Also described is an FPGA-based lossless data compression algorithm with a configurable pre-scaler based on a novel square root data compression method to improve compression performance. The required interactions of the distributed elements with an instrument control unit will be described as well.

Keywords

astronomical telescopes; data acquisition; FPGA-based lossless data compression algorithm; NAND flash memory; SuperNova acceleration probe; dark energy; distributed data acquisition; telescope; universe; Acceleration; Dark energy; Data acquisition; Data compression; File systems; Infrared detectors; Infrared imaging; Instruments; Probes; Spectroscopy; Data acquisition; Index Terms; data compression; distributed memories; space vehicle electronics;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record, 2007. NSS '07. IEEE

Conference_Location

Honolulu, HI

ISSN

1095-7863

Print_ISBN

978-1-4244-0922-8

Electronic_ISBN

1095-7863

Type

conf

DOI

10.1109/NSSMIC.2007.4437198

Filename

4437198