Download or read book Fourier Multispectral Imaging in the Shortwave Infrared written by Matthew David Howard and published by . This book was released on 2017 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most multispectral systems try to measure incoming spectra with narrow-band filters at specific central wavelengths which are chosen based upon the application. A shortwave infrared (SWIR) multispectral system using concepts from Fourier multispectral imaging was designed with approximately sinusoidal spectral transmission filters. The filters were implemented as single cavity thin film resonators of varying thicknesses. The prototype system was evaluated using narrow-band spectra with single peaks, narrow-band spectra with multiple peaks, and broadband spectra with atmospheric absorption characteristics. The results show that this technique preserves spectral peaks and absorption bands even though the filters are not perfectly sinusoidal. Additionally, preliminary detection results were evaluated using a synthetic scene.