Canadian Forest Service Publications

A low resource imaging radiometer for nanosatellite based fire diagnosis. 2018. Phong, L.N.; Dufour, D.; Johnston, J.M.; Chevalier, C.; Côté, P.; Fisette, B.; Wang, M.; Châteauneuf, F. Proc. SPIE 10765, Infrared Remote Sensing and Instrumentation XXVI:

Year: 2018

Issued by: Great Lakes Forestry Centre

Catalog ID: 39351

Language: English

Availability: PDF (request by e-mail)

Available from the Journal's Web site.
DOI: 10.1117/12.2320661

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Plain Language Summary

Details of a multispectral imaging radiometer specially designed to retrieve fire characteristics from a nanosatellite platform are presented. The instrument consists of an assembly of three cameras providing co-registered midwave infrared, longwave infrared, and visible image data. A method was devised to stagger two linear arrays of 512x3 VOx microbolometers in each infrared detector assembly. Investigation of the first completed detector assemblies showed an alignment accuracy better than 10% of pixel pitch and a response uniformity achieved across 92% of the pixels. Effects of the thermal environment seen by the pixels were evaluated to optimize the radiometric packaging design. The detector assemblies were able to withstand extreme environments with vibration up to 14 grms and temperatures from 218 to 333 K.