Progress in Implementation of the Portable Remote Imaging Spectrometer (PRISM) Coastal Ocean Sensor
No abstract available
pushbroom imaging spectrometer↗
Engineering topics
Sarture, C.
Publications and source records attributed to Sarture, C..
Progress in implementation of the Portable Remote Imaging Spectrometer (PRISM) coastal ocean sensor.
PRISM is a pushbroom imaging spectrometer currently in its second year of development at the Jet Propulsion Laboratory, intended to address the needs of airborne coastal ocean science research. We give an overview of the instrument functionality and then describe progress in component and subsystem fabrication. In the second year, all critical components have been received and most have been integrated into their respective subsystems. The design of the vacuum enclosure has also been completed. We present results from the telescope and spectrometer sub-assemblies, the focal plane electronics, and the overall system assembly implementation.
Yee, K.↗
Initial estimates of the temperature and fractional areas of fires at the World Trade Center Disaster from AVIRIS
This paper reports the measurements, algorithms, analyses, and results of the fire temperature and fractional area determinations with AVIRIS calibrated spectra at the World Trade Center site in September 2001.
AVIRIS remote sensing imaging spectroscopy↗
Overview of the AVIRIS 2000 flight season
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AVIRIS overview flight season↗
A new absolute radiometric calibration standard: the AVIRIS 3000 Kelvin black body source
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AVIRIS radiometric calibration irradiance lamps↗
AVIRIS Investigator's Guide for High and Low Altitude Experiments
This guide serves as a brief overview of the AVIRIS instrument and its role in the field of imaging spectrometry.
AVIRIS hyperspectral remote sensing↗
Predicted Accuracy and Validation of the AVIRIS Radiometric Calibration Standard
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Predicted Accuracy Validation AVIRIS Radiometric C↗
Recent Improvements to the AVIRIS Sensor
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AVIRIS Sensor Earth Science Improvements↗
Operation Calibration Georectification and Reflectance Inversion of NASA's Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) Four- and Two-Meter Data Acquired from a Low-Altitude Platform
This paper presents key aspects of the implementation, operation, calibration, georectification, and validation of AVIRIS on a low-altitude platform in the Autumn of 1998.
AVIRIS Low Altitute Imaging Spectrometer↗
Thermal Stability of the AVIRIS On-Board Calibrator
The AVRIS On-Board Calibrator (OBC) provides essential data for refining the calibration of each AVIRIS data run.
Thermal↗
Recent Improvements to the Airborne Visible/Infrared Imaging Spectrometer (AVRIS)
Several improvements have been made to the Airborne Visible/Infrared Imaging Spectrometer (AVRIS) since 1994--new focal plane arrays, a new analog and digital chain and an onboard calibration lamp controlled by radiance feedback. These changes increased the signal-to- noise ratio by 2 to 3 times, eliminated noise spikes and the need for spectral sampling, and greatly reduced dark-current noise.
AVRIS improvements spectrometer↗
Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) Onboard Calibration System
The AVIRIS instrument uses an onboard calibration system to provide auxiliary calibration data. The system consists of tungsten halogen cycle lamp imaged onto a fiber bundle through an eight position filter wheel. The fiber bundle illuminates the back side of the foreoptics shutter during a pre-run and post-run calibration sequence. The filter wheel contains 2 neutral density filters, 5 spectral filters and blocked position.
spectrometer↗
Improvements to the Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) Calibration System
As a continuing effort to increase the calibration accuracy of the AVIRIS data a number of recent improvements have been implemented and are in the process of being tested during the 1994 flight season. These include the following innovations: A direct observation of a laboratory radiance standard is now used to double check the wide field-of-view calibration via an integrating sphere source. Launch site field calibration of the AVIRIS sensor is now being planned to augment the laboratory and inflight calibration. Modification to a dry air conditioning unit has been made to enable ground calibration at flight operating temperatures. One hundred lines of dark imagery has been added to the end of each flight line to assist in the analysis and removal of residual coherent noise. The intensity of the onboard calibration lamp has been modified to improve response in the blue end of the spectrum. Novel spectral filters have been installed in the onboard calibration source.
Airborne Visible/Infrared Imaging Spectrometer Cal↗
High Altitude Hyperspectral Remote Sensing with AVIRIS
None given. From Intro: This paper describes AVIRIS (the Airborne Visible and InfraRed Imaging Spectrometer) as a remote sensing instrument that is supported, calibrated, and maintained by JPL.
AVIRIS detector fiberoptics remote sensing spectro↗