21 October 2005 Long quadrilinear CCD sensors equipped with long linear filters: characteristics and performances for the multispectral channel of Earth observing systems
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Abstract
The PLEIADES-HR Earth Observing system combines a high resolution panchromatic channel (0.7 m at nadir) and a multispectral channel allowing a 2.8 m resolution. This paper presents the main characteristics of the sensor equipped with filters for the multispectral channel. A long quadrilinear CCD sensor has been coupled to four long stripe filters. The CCD device provides four lines of 1500 pixels with 52 microns pitch. Each line is associated to a long stripe filter and allows to cover spectral bands from blue to near infra red spectrum. Performances of this sub-assembly are analyzed. Pixel response non-uniformity and relative spectral response have been measured and compared to individual performances of the CCD and the filters. Impacts of instrument optical interfaces on these parameters are included in this analysis. Residual spatial noise performances related to spectral response dispersion are presented.
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Herve Geoffray, Herve Geoffray, Jacques Loesel, Jacques Loesel, Isabelle Loiret, Isabelle Loiret, Jean-Jacques Quicot, Jean-Jacques Quicot, } "Long quadrilinear CCD sensors equipped with long linear filters: characteristics and performances for the multispectral channel of Earth observing systems", Proc. SPIE 5978, Sensors, Systems, and Next-Generation Satellites IX, 597814 (21 October 2005); doi: 10.1117/12.628226; https://doi.org/10.1117/12.628226
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