Spectral calibration of the real-time data gathering and spectrum rebuilding system based on FPGA

Ning Zhang; Lijun Zhang; Xiaohua Liu; Weiliang Cao

doi:10.1117/12.916689

28 November 2011 Spectral calibration of the real-time data gathering and spectrum rebuilding system based on FPGA

Ning Zhang, Lijun Zhang, Xiaohua Liu, Weiliang Cao

Proceedings Volume 8200, 2011 International Conference on Optical Instruments and Technology: Optoelectronic Imaging and Processing Technology; 82000A (2011) https://doi.org/10.1117/12.916689
Event: International Conference on Optical Instruments and Technology (OIT2011), 2011, Beijing, Beijing, China

Abstract

Based on the spectrum rebuilding technology of spatially modulated imaging spectrometer, a real-time data gathering and spectrum rebuilding system of all reflection Fourier Transform imaging spectrometer is built on FPGA. It integrates interferogram sampling, spectrum rebuilding, data restoring, VGA display and data transmission on a single chip of FPGA and can make them accomplished in real-time. This paper presents the key technology and the spectral calibration study of this system. Using a mercury lamp as the calibration source, the calibration experiments have been carried on this FPGA-based system. After analysis the experimental results, a function of pixel number-wave number has been established, and the wave number resolution has been got, which is same to the resolution got by a computer-based system.

Citation Download Citation

Ning Zhang, Lijun Zhang, Xiaohua Liu, and Weiliang Cao "Spectral calibration of the real-time data gathering and spectrum rebuilding system based on FPGA", Proc. SPIE 8200, 2011 International Conference on Optical Instruments and Technology: Optoelectronic Imaging and Processing Technology, 82000A (28 November 2011); https://doi.org/10.1117/12.916689

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