MTF DETERMINATION OF SENTINEL-4 DETECTOR ARRAYS
| Autor: | R. Hohn, Ilse Sebastian, Christian Williges, Ralf Reulke |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
lcsh:Applied optics. Photonics
Engineering Gimbal 01 natural sciences lcsh:Technology law.invention 010309 optics Optics law 0103 physical sciences EnMAP MTF evaluation 010303 astronomy & astrophysics CCD Monochromator business.industry lcsh:T Detector lcsh:TA1501-1820 Collimator FPA Lens (optics) Halogen lamp PSF measurement lcsh:TA1-2040 Siemens star business lcsh:Engineering (General). Civil engineering (General) Sentinel-4 |
| Zdroj: | The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XLII-1-W1, Pp 559-565 (2017) |
| ISSN: | 2194-9034 |
| Popis: | The Institute for Optical Sensor Systems was involved in many international space projects in recent years. These include, for example, the fokal plane array (FPA) of the hyperspectral sensors ENMAP or Sentinel-4, but also the FPA for the high resolution FPA for Kompsat-3. An important requirement of the customer is the measurement of the detector MTF for different wavelengths. A measuring station under clean room conditions and evaluation algorithms was developed for these measurements. The measurement setup consist of a collimator with slit target in focus for illumination at infinity, a gimbal mounted detector facing an auxiliary lens in front, a halogen lamp with monochromator or filter, as well as optical and electrical ground support equipment. Different targets and therefore also different measurement and data evaluation opportunities are possible with this setup. Examples are slit, edge, pin hole but also a Siemens star. The article describes the measurement setup, the different measuring and evaluation procedures and exemplary results for Sentinel-4 detector. |
| Databáze: | OpenAIRE |
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