A reference surface uniformity and isotropy evaluation for orbital or airborne sensors absolute calibration

A reference surface uniformity and isotropy evaluation for orbital or airborne sensors absolute calibration
Cibele Teixeira Pinto1,2, Flávio Jorge Ponzonni1 and Ruy Morgado de Castro2,3

1.Instituto Nacional de Pesquisas Espaciais – INPE, Caixa Postal 515 - 12227-010 - São José dos Campos - SP, Brasil (cibele@dsr.inpe.br, flavio@dsr.inpe.br)
2.Instituto de Estudos Avançados - IEAv/CTA, Caixa Postal 6044 - 12.231-970 - São José dos Campos - SP, Brasil (cibele@ieav.cta.br, rmcastro@ieav.cta.br)
3.Universidade de Taubaté – UNITAU, Caixa Postal 515 - 12201-970 - Taubaté - SP, Brasil (rmcastro@unitau.br)

Abstract:The aim of this work is to present the methodology used to evaluate two features of a surface potentially considered as a reference in imaging sensors absolute calibration missions: uniformity radiometric and isotropy. Addition this work also estimates the main sources of uncertainties associated with radiometric measurement process.

Keywords: calibration, reference surfaces, uniformity, isotropy, uncertainties

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