Onboard spectral imager data processor

Leonard John Otten III; Andrew D. Meigs; Abraham J. Franklin; Robert D. Sears; Mark W. Robison; Bruce Rafert; Donald C. Fronterhouse; Ronald L. Grotbeck

doi:10.1117/12.366270

27 October 1999 Onboard spectral imager data processor

Leonard John Otten III, Andrew D. Meigs, Abraham J. Franklin, Robert D. Sears, Mark W. Robison, Bruce Rafert, Donald C. Fronterhouse, Ronald L. Grotbeck

Author Affiliations +

Proceedings Volume 3753, Imaging Spectrometry V; (1999) https://doi.org/10.1117/12.366270
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

Previous papers have described the concept behind the MightySat II.1 program, the satellite's Fourier Transform imaging spectrometer's optical design, the design for the spectral imaging payload, and its initial qualification testing. This paper discusses the on board data processing designed to reduce the amount of downloaded data by an order of magnitude and provide a demonstration of a smart spaceborne spectral imaging sensor. Two custom components, a spectral imager interface 6U VME card that moves data at over 30 MByte/sec, and four TI C-40 processors mounted to a second 6U VME and daughter card, are used to adapt the sensor to the spacecraft and provide the necessary high speed processing. A system architecture that offers both on board real time image processing and high-speed post data collection analysis of the spectral data has been developed. In addition to the on board processing of the raw data into a usable spectral data volume, one feature extraction technique has been incorporated. This algorithm operates on the basic interferometric data. The algorithm is integrated within the data compression process to search for uploadable feature descriptions.

Citation Download Citation

Leonard John Otten III, Andrew D. Meigs, Abraham J. Franklin, Robert D. Sears, Mark W. Robison, Bruce Rafert, Donald C. Fronterhouse, and Ronald L. Grotbeck "Onboard spectral imager data processor", Proc. SPIE 3753, Imaging Spectrometry V, (27 October 1999); https://doi.org/10.1117/12.366270

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