Share Email Print

Proceedings Paper

Study on Hadamard transform imaging spectroscopy
Author(s): Ji-Zong Wu; Jia-cheng Deng; Ben-zhi Chen
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Hadamard transform imaging spectroscopy (HTIS) based on a measuring principle of double coding modulation for light beam imaging is considered. HTIS is capable of providing high signal-to-noise ratios for spectral testing and detecting weak infrared signals. Topics discussed include a reconstruction formula for the images and spectra in the case of longitudinal folded 2D spatial encoding; design considerations of incidence and exit encoding plates; a schematic diagram of self-made setup of HTIS, a block diagram of software and main electronics to automatically control the whole testing process using IBM PC/XT microcomputer; and results of the infrared absorption imaging spectral testing for CO2.

Paper Details

Date Published: 1 March 1991
PDF: 8 pages
Proc. SPIE 1399, Optical Systems in Adverse Environments, (1 March 1991); doi: 10.1117/12.26100
Show Author Affiliations
Ji-Zong Wu, Tianjin Univ. (China)
Jia-cheng Deng, Tianjin Univ. (China)
Ben-zhi Chen, Tianjin Univ. (China)

Published in SPIE Proceedings Vol. 1399:
Optical Systems in Adverse Environments
Soon Fatt Yoon; M. H. Kuok; Donald E. Silva, Editor(s)

© SPIE. Terms of Use
Back to Top