In-flight absolute calibration of the CBERS-2 CCD sensor data
نویسندگان
چکیده
منابع مشابه
In-flight absolute calibration of the CCD/CBERS-2 sensor data
The success of any remote sensing program is directly related to the knowledge of both spectral and radiometric characteristics of the sensors involved. The Brazilian remote sensing user’s community has explored the relationship between orbital radiometric data and biophysical data since the beginning of the nineties using the Thematic Mapper (TM) sensor as the main source of data. Since the fi...
متن کاملIn-flight absolute calibration of the CBERS-2 CCD sensor data.
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 ca...
متن کاملPre-Launch Absolute Calibration of CCD/CBERS-2B Sensor
Pre-launch absolute calibration coefficients for the CCD/CBERS-2B sensor have been calculated from radiometric measurements performed in a satellite integration and test hall in the Chinese Academy of Space Technology (CAST) headquarters, located in Beijing, China. An illuminated integrating sphere was positioned in the test hall facilities to allow the CCD/CBERS-2B imagery of the entire sphere...
متن کاملResults of POLDER in-flight absolute calibration
POLDER is a CNES instrument on-board ADEOS polar orbiting satellite, which was succesfully launched in august 1996. In november 1996, POLDER entered its nominal acquisition phase and functionned perfectly until ADEOS early end of service in june 1997. POLDER is a multispectral imaging radiometer/polarimeter designed to collect global and repetitive observations of the solar radiation reflected ...
متن کاملFlux Calibration of the ACS CCD Cameras IV. Absolute Fluxes
ISRs I–III in this series define the charge transfer efficiency (CTE) for the CCD detectors, the encircled energy fractions, and the optical throughput degradation. This fourth ISR establishes the absolute flux calibration for the photometry, as corrected with the algorithms specified in I–III. Synthetic photometry from the SEDs of three primary hot 30,000–60,000K WDs define these sensitivity c...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Anais da Academia Brasileira de Ciências
سال: 2008
ISSN: 0001-3765
DOI: 10.1590/s0001-37652008000200015