Next-generation pushbroom filter radiometers for remote sensing

Tarde, Richard W.; Dittman, Michael G.; Kvaran, Geir

doi:10.1117/12.966853

Cited by 3 publications

(4 citation statements)

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“…The OLI design is described in detail in [2] and compared to previous Landsat sensors in [3]. A summary of design features relative to the radiometric performance is provided here.…”

Section: Oli Design Overviewmentioning

confidence: 99%

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Landsat-8 Operational Land Imager (OLI) Radiometric Performance On-Orbit

et al. 2015

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Expectations of the Operational Land Imager (OLI) radiometric performance onboard Landsat-8 have been met or exceeded. The calibration activities that occurred prior to launch provided calibration parameters that enabled ground processing to produce imagery that met most requirements when data were transmitted to the ground. Since launch, calibration updates have improved the image quality even more, so that all requirements are met. These updates range from detector gain coefficients to reduce striping and banding to alignment parameters to improve the geometric accuracy. This paper concentrates on the on-orbit radiometric performance of the OLI, excepting the radiometric calibration performance. Topics discussed in this paper include: signal-to-noise ratios that are an order of magnitude higher than previous Landsat missions; radiometric uniformity that shows little residual banding and striping, and continues to improve; a dynamic range that limits saturation to extremely high radiance levels; extremely stable detectors; slight nonlinearity that is corrected in ground processing; detectors that are stable and 100% operable; and few image artifacts.

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“…The OLI design is described in detail in [2] and compared to previous Landsat sensors in [3]. A summary of design features relative to the radiometric performance is provided here.…”

Section: Oli Design Overviewmentioning

confidence: 99%

“…Previous Landsat missions used whiskbroom imagers that had short integration times [3] producing relatively low SNR values. Table 4 compares the on-orbit SNR of OLI to those of the ETM+ onboard the Landsat-7 satellite [13].…”

Section: Signal-to-noise Ratiomentioning

confidence: 99%

Landsat-8 Operational Land Imager (OLI) Radiometric Performance On-Orbit

et al. 2015

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“…Another key element of the architecture is an optical design with the aperture stop at the front of the optics [5]. This keeps the on-board diffusers at a reasonable size.…”

Section: Top Level Architecturementioning

confidence: 99%

“…Each detector is also redundant. One of two detectors can be selected for readout for the silicon bands (1)(2)(3)(4)(5)8), and one of three detectors can be selected for the HgCdTe bands (6)(7)9). This redundancy increases manufacturing yield and improves on-orbit reliability, but does introduce an offset that must be accounted for by using the pixel select map (which identifies which detector elements are actively read out) in the geolocation process.…”

Section: Focal Plane Subsystem (Fps)mentioning

confidence: 99%

Landsat-8 Operational Land Imager Design, Characterization and Performance

Knight¹,

Kvaran²

2014

Remote Sensing

211

130

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Abstract:The Operational Land Imager (OLI) on Landsat-8 represents a generational change from heritage Landsat instruments in its design, while it maintains data continuity with the 40+ year Landsat data archive. It preserves the 30-m ground sample distance, 185-km swath width and VIS/NIR/SWIR spectral bands. Furthermore, data continuity resulted from extensive pre-launch and on-orbit calibration and characterization campaigns. This paper presents an overview of the OLI design, the pre-launch characterization results and the on-orbit performance.

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