Development of an airborne CCD scanner for land and sea applications

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Published Date

11-09-1984

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NLR MP 84082 U

Abstract

An airborne multispectral CCD-scanner has been developed in the framework of the national remote sensing programme. The objectives of this project are to improve the know-how of the application of CCD detectors for earth observation, to explore technical problem areas and to stimulate application-oriented research. Based on existing requirements a modular design has been chosen to accomodate the instrument for land and sea observation. The scanner consists of three down-looking and one forward-looking camera. Each camera contains three CCDs for measurements in three spectral bands. A data acquisition system has been developed for registration of 12 bits raw data per channel and per pixel on high density tape. Different settings for the integration time can be selected. On-board electronic roll correction is applied. The CCD scanner, named CAESAR, is operated in an NLR laboratory aircraft. Preprocessing software has been developed to apply radiometric and geometric corrections. A calibration facility will be available for relative and absolute calibration. Results of the first test flight are presented.

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