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Algra, T. (author), Looyen, W.J. (author), de Brouwer, M. (author), Venema, J.C. (author)This paper describes the conceptual design of a synthetic aperture radar (SAR) sensor operating at P-band frequency (435 MHz). It is part of the FAME (Forest Assessment and Monitoring Environment) initiative for the realisation of a global operational end-to-end service to allow forests to be monitored at national and sub-national level. The...report 1997
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Algra, T. (author), Looyen, W. (author), de Brouwer, M. (author)This document describes the results of research activities related to critical issues of the FA^ffi mission, carried out by NLR. FAME constitutes a dedicated infrastructure, consisting of a space segment and a ground segment, for the global monitoring of forests. The space segment is a single-mission satellite carrying a Synthetic Aperture Radar...report 1997
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Looyen, W.J. (author), Algra, T. (author), de Brouwer, M.G.A. (author)Effective global forest monitoring can be achieved by means of Earth Observation techniques. The most promising technique in this respect is the synthetic aperture radar (SAR) technique. Due to the high percentage of cloud cover in tropical and temperate regions SAR offers excellent opportunities to monitor the forests. Requirement studies in...report 1996
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Looyen, W.J. (author), Algra, T. (author), de Brouwen, M.G.A. (author)Effective global forest monitoring can be achieved by means of Earth Observation techniques. The most promising technique in this respect is the synthetic aperture radar (SAR) technique. Due to the high percentage of cloud cover in tropical and temperate regions SAR offers excellent opportunities to monitor the forests. Requirement studies in...report 1996
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Looyen, W.J. (author)This document describes the activities that are being carried out by the ROBO-members. The description of these activities serves as input for discussions on remote sensing support for the Global Force Resource Assessment (FRA 2000) at the workshop, which will be held from 12-14 March 1996 in Washington D.C., USA.report 1996
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Looyen, W.J. (author), Hendriks, C.F.W. (author)A new approach towards assessment and monitoring has been presented in previous work [1, 2]. This approach, the monitoring concept, has been taken as the basis to develop DEMON, the DEmonstration MONitoring system. DEMON will demonstrate the monitoring concept for two fields of applications: (i) tropical forest monitoring and (ii) military...report 1994
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- Looyen, W.J. (author), Hendriks, C.F.W. (author), Zeppenfeldt, F.O. (author) report 1993
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Zeppenfeldt, F.O. (author), Looyen, W.J. (author), Hendriks, C.F.W. (author)In a multidisciplinary field like earth observation, not only assessment but also the monitoring of processes is important. Assessment is defined as the arrangement of objects in classes through characteristic attributes at a certain moment in time, whereas monitoring is defined as the detection of changes of objects explicitely using existing...report 1993
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van der Burg, G. (author), Looyen, W.J. (author), Venema, J.C. (author)Effective management of forest resources requires suitable, up-todate information on the state, extent and distribution of forest. Remote Sensing data can provide this information. FAO has initiated a feasibility study on a global operational forest cover monitoring network using satellite remote sensing data within the framework of the Tropical...report 1993
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Looyen, W.J. (author), Zeppenfeldt, F.O. (author), Venema, J.C. (author), van der Burg, G. (author), Hoekman, D.H. (author), van der Sanden, J.J. (author), Reichert, P.G. (author), Westinga, E. (author)Effective management of forest resources requires suitable, up-to-date information on the state, extent and distribution of forest. Remote Sensing data can provide this information. FAO has initiated a feasibility study on a global operational forest cover monitoring network using satellite remote sensing data within the framework of the...report 1993
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Rietveld, A.J. (author), Looyen, W.J. (author), Habets, G.M.H.J. (author)This document contains the functional and detailed design of an information System for CO-REgistration of sea-images taken by the CAESAR scanner based on image matching techniques (SCORE). CEASAR (CCD Airborne Experimental Scanner for Applications in Remote sensing) is a multispectral push-broom scanner designed for land- and sea(water)...report 1990
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- Looyen, W.J. (author), Verhoef, W. (author), Clevers, J.G.P.W. (author), Lamers, J.G. (author), Boerma, J. (author) report 1990
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Looyen, W.J. (author), Verhoef, W. (author), Clevers, J.G.P.W. (author), lamers, J. (author), Boerma, J. (author)CAESAR, a multispectral pushbroom-scanner, was developed in The Netherlands within the framework of the National Remote Sensing Programme. In 1988 the scanner became available for specific remote sensing research. CAESAR is capable of obtaining information on the directional reflectance of objects on the ground by the acquisition of...report 1990
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Looyen, W.J. (author)Working with Remote Sensing data can be generalized into four categories: - registration - processing - interpretation - presentation. A short overview of these four categories will be given. Emphasis will be put on the Dutch airborne multichannel pushbroom scanner CAESAR showing specific geodetic points of interest in working with Remote...report 1989
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Looyen, W.J. (author), van Swol, R.W. (author)Within the framework of the National Remote Sensing Programme, an airborne push-broom scanner was developed in The Netherlands by the National Aerospace Laboratory NLR and the Institute for Applied Physics TNO-TH (TPD). With the development of this scanner, named CAESAR, two objectives were fulfilled: technical knowledge about CCD detectors and...report 1989