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CHAFF: CubeSat Hyperspectral Application For Farming

Middleton, Callum, Underwood, Craig, Woolliams, Emma, Bridges, Chris and Fox, Nigel (2019) CHAFF: CubeSat Hyperspectral Application For Farming In: 12th IAA Symposium on Small Satellites for Earth Observation, 06-10 May 2019, BBAW, Jägerstraße 22/23, 10117 Berlin.

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Abstract

Presented here is CHAFF (CubeSat Hyperspectral Application For Farming), a design concept for a CubeSat-based Hyperspectral Imager (CHSI) intended to supply high quality hyperspectral image data cubes to the agricultural community. CHAFF has been designed holistically as a system, considering all design and operational characteristics of a CHSI instrument and platform together: including the re-stricted payload mass and volume associated with CubeSats, the platform pointing stability/accuracy limitations, and the restricted downlink data budget. To this end, CHAFF will employ optically aided geometric co-registration methods, which will allow on-board construction of the hyperspectral data cube. This allows the use of powerful lossless data compression schemes to mitigate the downlink data budget limitations. In addition, a calibration methodology using a tuneable laser source at NPL, will be employed pre-flight to achieve rapid and accurate spectral and radiometric calibration, essential for the production of science-grade data sets from the proposed CubeSat constellations. A benchtop prototype has been constructed and a promising spectral resolution of 3nm at around 625nm has been achieved. In addition the auxiliary imager for the optically-aided geometric co-registration has been demonstrated.

Item Type: Conference or Workshop Item (Conference Paper)
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
NameEmailORCID
Middleton, Callumc.j.middleton@surrey.ac.uk
Underwood, CraigC.Underwood@surrey.ac.uk
Woolliams, Emma
Bridges, ChrisC.P.Bridges@surrey.ac.uk
Fox, Nigel
Date : 2019
Funders : Engineering and Physical Sciences Research Council (EPSRC)
Grant Title : iCASE award
Copyright Disclaimer : © 2019 The Authors.
Related URLs :
Depositing User : Clive Harris
Date Deposited : 25 Sep 2019 12:56
Last Modified : 25 Sep 2019 12:56
URI: http://epubs.surrey.ac.uk/id/eprint/852780

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