Test plan for a calibration demonstration system for the reflected solar instrument for the climate absolute radiance and refractivity observatory

Thome, Kurtis J.; McCorkel, Joel; Hair, Jason; McAndrew, Brendan; Daw, A. N.; Jennings, Donald E.; Rabin, D. M.

doi:10.1117/12.930337

Cited by 11 publications

(15 citation statements)

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“…SYSTEM-1501 integrating sphere calibration results show when the input current [12] Analyze four sets of data corresponding to different currents, the output digital image gray value which is calculated by multi-frame superposition averaged is the corresponding signal spectrum S i,j , and the noise N i,j is calculated by multi-frame image gray value changes-the RMS of multi-frame image at a same pixel. (i, j)is the position of an arbitrary pixel.…”

Section: The Noise Level and Snr Testingmentioning

confidence: 99%

The application and quantitative testing of 150 million pixel CMOS image sensor

et al. 2013

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With the requirements of high time resolution, high spatial and high spectral resolution development in geostationary orbit, photodetector pixel size has gradually become the bottleneck of the space exploration technology. Shanghai Institute of Technical Physics of Chinese Academy of Science has made a new breakthrough in CMOS image sensor area. The scale of its new CMOS image sensor achieves 2.5K × 2.5K, and then use 24 detectors to achieve a detector whose scale is 150 million. The detector has been successfully imaging on the ground. In the application process, presents a systematic test and measurement methods to deal with the time noise, dark current, fixed pattern noise, MTF and other parameters of the detector. The test results are below. The MTF of the detector is 0.565 which is measured at 57.21/mm Nyquist frequency.The number of saturated electrons reaches 8.9 × 10 4 . The total number of transient noise electrons is smaller than 16. The signal to noise ratio is 58.02dB. Through comprehensive analysis and measurement, it shows that the overall performance of the 2.5K×2.5K detector among the same types of products is in the leading position currently.

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Section: The Noise Level and Snr Testingmentioning

confidence: 99%

The application and quantitative testing of 150 million pixel CMOS image sensor

et al. 2013

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“…Additional details on the instrument design and performance requirements can be found in [4]. Key components in the error budget, assessed using the SOLARIS calibration demonstration system are given in [5], and [6].…”

Section: Introductionmentioning

confidence: 99%

CLARREO calibration uncertainty assessment tool: status and path forward

Efremova

Wu²,

Xiong

et al. 2014

SPIE Proceedings

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The Climate Absolute Radiance and Refractivity Observatory (CLARREO) mission is designed to make SItraceable measurements and provide a long-term benchmarking data record for the detection, projection, and attribution of changes in the Earths climate system. The CLARREO mission will include instruments operating in the reflected solar (RS) wavelength region from 320 nm to 2300 nm and the thermal infrared wavelength region from 5 µm to 50 µm. A major objective of CLARREO is to improve the accuracy of SI-traceable absolute calibration in the infrared and reflected solar wavelengths. In this paper we describe a tool developed to assess the uncertainty of the top of the atmosphere (TOA) Earth reflectance, to be measured by the CLARREO reflected solar (RS) instrument. The tool provides an error estimate based on the preliminary prototype instrument design. The on-orbit calibration approach currently implemented in the tool uses a direct view of the Sun through an attenuator. Several attenuation approaches are considered and incorporated as options of viewing the Sun through: a pinhole; a perforated plate; a combination between a pinhole and reduced exposure time and/or a neutral density (ND) filter. Additional approaches can readily be implemented. The tool is realized in Excel and is intended to facilitate error budget assessments specifically of the CLARREO RS instrument. Towards deriving a realistic estimate we started compiling a database of values for the various uncertainty contributors using results from testing prototypes or from other missions utilizing similar design.

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“…SOLARIS is the reflected solar instrument of the climate absolute radiance and refractivity observatory (CLARREO) mission. [9][10][11] The objective of the SOLARIS sensor is the development and inspection of calibration techniques, establish methods to obtain SI-traceability, and estimate reflectance from measurements of the sun and the scene. 9 The mission plan is to have the SOLARIS sensor placed on the ISS platform to investigate techniques and benefits in obtaining highly accurate measurements before placing high-budget satellites into service.…”

Section: Introductionmentioning

confidence: 99%

“…[9][10][11] The objective of the SOLARIS sensor is the development and inspection of calibration techniques, establish methods to obtain SI-traceability, and estimate reflectance from measurements of the sun and the scene. 9 The mission plan is to have the SOLARIS sensor placed on the ISS platform to investigate techniques and benefits in obtaining highly accurate measurements before placing high-budget satellites into service. 9 As a platform, the ISS has become an attractive option to perform intercalibration studies, as the long service life of the ISS along with the presence of a human crew and various equipment provide the possibility of performing various studies, which are not feasible with spaceborne satellites.…”

Section: Introductionmentioning

confidence: 99%

“…9 The mission plan is to have the SOLARIS sensor placed on the ISS platform to investigate techniques and benefits in obtaining highly accurate measurements before placing high-budget satellites into service. 9 As a platform, the ISS has become an attractive option to perform intercalibration studies, as the long service life of the ISS along with the presence of a human crew and various equipment provide the possibility of performing various studies, which are not feasible with spaceborne satellites. 12 The ISS intercalibration studies presented here utilize the Aqua-MODIS instrument as a test sensor.…”

Section: Introductionmentioning

confidence: 99%

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Development of a simulation environment to support intercalibration studies over the Algodones Dunes system

Eon

Gerace

Montanaro

et al. 2017

J. Appl. Remote Sens

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"Development of a simulation environment to support intercalibration studies over the Algodones Dunes system," J. Appl. Remote Sens. 12(1), 012008 (2017), doi: 10.1117/1.JRS.12.012008. Abstract. The ability of sensors to detect changes in the Earth's environment is dependent on retrieving radiometrically consistent and calibrated measurements from its surface. Intercalibration provides consistency among satellite instruments and ensures fidelity of scientific information. Intercalibration is especially important for spaceborne satellites without any on-board calibration, as accuracy of instruments is significantly affected by changes that occur postlaunch. To better understand the key parameters that impact the intercalibration process, this paper describes a simulation environment that was developed to support the primary mission of the Algodones Dunes campaign. Specifically, measurements obtained from the campaign were utilized to create a synthetic landscape to assess the feasibility of using the Algodones Dunes system as an intercalibration site for spaceborne instruments. The impact of two key parameters (differing view-angles and temporal offsets between instruments) on the intercalibration process was assessed. Results of these studies indicate that although the accuracy of intercalibration is sensitive to these parameters, proper knowledge of their impact leads to situations that minimize their effect. This paper concludes with a case study that addresses the feasibility of performing intercalibration on the International Space Station's platform to support NASA's CLARREO, the climate absolute radiance and refractivity observatory, mission. © The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Test plan for a calibration demonstration system for the reflected solar instrument for the climate absolute radiance and refractivity observatory

Cited by 11 publications

References 0 publications

The application and quantitative testing of 150 million pixel CMOS image sensor

The application and quantitative testing of 150 million pixel CMOS image sensor

CLARREO calibration uncertainty assessment tool: status and path forward

Development of a simulation environment to support intercalibration studies over the Algodones Dunes system

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