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Proceedings Paper

Computer-aided performance evaluation system for the on-board data compression system in HIRIS
Author(s): Shen-en Qian; Ruqin Wang; Shuqiu Li; Yisong Dai
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Paper Abstract

This paper describes a computer-aided performance evaluation system for testing and checking the on-board data compression system used in the High-Resolution Imaging Spectrometer (HIRIS). The earth resources spectra from the NASA earth resources spectral information system are taken for simulative spectra of ground objects, and these spectra are sampled and quantized according to the conditions and parameters of HIRIS. Then the simulative spectral data are put in a GIFOV spectral data generator through a computer interface. In testing, the spectral data stored in the generator are sent to the data compression system at the same rate of the readout clock of subdetectors in HIRIS. The data compression system compresses the input data in real-time under the control of the clock of the input data. After compressing, the compression results are returned to the computer through a bidirection interface and compared with the original ones. Finally, the computer gives out testing results. This kind of test system can exactly simulate the original data obtained by HIRIS in space, and objectively evaluate the data compression system.

Paper Details

Date Published: 1 July 1991
PDF: 11 pages
Proc. SPIE 1483, Signal and Image Processing Systems Performance Evaluation, Simulation, and Modeling, (1 July 1991); doi: 10.1117/12.45742
Show Author Affiliations
Shen-en Qian, Changchun Institute of Optics and Fine Mechanics (China)
Ruqin Wang, Changchun Institute of Optics and Fine Mechanics (China)
Shuqiu Li, Changchun Institute of Optics and Fine Mechanics (China)
Yisong Dai, Jilin Univ. of Technology (China)


Published in SPIE Proceedings Vol. 1483:
Signal and Image Processing Systems Performance Evaluation, Simulation, and Modeling
Hatem N. Nasr; Michael E. Bazakos, Editor(s)

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