In-flight absolute calibration of the CBERS-2 CCD sensor data

Flávio J Ponzoni; Jurandir Zullo Junior; Rubens A C Lamparelli

doi:10.1590/s0001-37652008000200015

In-flight absolute calibration of the CBERS-2 CCD sensor data

An Acad Bras Cienc. 2008 Jun;80(2):373-80. doi: 10.1590/s0001-37652008000200015.

Authors

Flávio J Ponzoni¹, Jurandir Zullo Junior, Rubens A C Lamparelli

Affiliation

¹ Divisão de Sensoriamento Remoto, Instituto Nacional de Pesquisas Espaciais, São José dos Campos, SP, 12227-010, Brazil. flavio@dsr.inpe.br

PMID: 18506263
DOI: 10.1590/s0001-37652008000200015

Abstract

Since the first images of the sensors on board of CBERS-2 (China-Brazil Earth Resources Satellite) satellite were made available by the National Institute for Space Research (INPE), users have asked information about the conversion of image digital numbers to physical data (radiance or reflectance). This paper describes the main steps that were carried out to calculate the in-flight absolute calibration coefficients for CBERS-2 CCD level 2 (radiometric and geometric correction) images considering the reflectance-based method. Remarks about the preliminary evaluation of these coefficients application are also presented.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Brazil
Calibration
China
Environmental Monitoring / instrumentation
Environmental Monitoring / methods*
International Cooperation*
Signal Processing, Computer-Assisted*
Spacecraft / standards*