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Advanced Technique, 1992-1994

Objetivo

The objectives of the work are divided into four main categories:

a) European Signature Laboratory: to undertake signature research in the microwave and optical regions of the electromagnetic spectrum of natural and man-made targets.
b) Signal Processing Facility: to develop software tools for data calibration, geophysical validation, geo-referencing, polarimetric data analysis, automatic analysis of ERS-1 data, radar imaging techniques.
c) Advanced Spectrometric Techniques: to evaluate the use of multi-channel optical high resolution spectrometry for a detailed analysis of ecosystem status and the relationship of signatures.
d) Laser Fluorescence: to provide scientific and technical support to the helicopter mounted Time Resolved Laser Fluorescence (TRLF). In addition to develop analysis techniques for use of the TRLF in sea truth and coastal transport applications.
The installation of the European Signature Laboratory was completed, with first tests being undertaken. In support of this operational software for the laboratory and calibration techniques have been developed. Preliminary measurements have also been undertaken in the Intermim Signature Laboratory, with the development of imaging techniques and the completion of a number of polarimetric radar backscatter measurements of natural and artificial targets to investigate their sensitivity, permitivity, shape and size.

The development of a number of software tools for data analysis has been undertaken. These include a tool for radar scattering matrix analysis (SMTOOL), a tool for the interactive analysis of multichannel radar data sets (DISTOOL), a tool for the georeferencing of radar data, and a tool for the calibration and quality checking of radar data.

The comparison of different remote sensing techniques for vegetation analysis has been undertaken. This has included reflectance analysis (passive) and excited laser fluorescence (active). In addition a contribution has been made to land degradation and soil erosion activities within IRSA by means of undertaking spectrometric measurements of rocks and soil in the laboratory and the field.

Application software for the statistical analysis of the laser fluorescence signal has been developed. This has also been extended to the analysis of water columns, including extinction coefficient, gelbstof and phytoplancton. The time resolved laser fluorescensor has been installed on a helicopter, and the validation of the system under vibration conditions undertaken. The first measurement campaigns with this system were undertaken in the Ligurian Sea, and initial analyses of the data were undertaken.
Progress to end 1991

Progress has been made concerning all the four objectives listed:

a) European Signature Laboratory:
The installation of the European Signature Laboratory was completed, with first tests being undertaken. In support of this operational software for the laboratory and calibration technique have been developed. Preliminary measurements have also been undertaken in the Interim Signature Laboratory, with the development of imaging techniques for linear and circular ISAR, and the completion of a number of polarimetric radar backscatter measurements of natural and artificial targets to investigate their sensitivity, (permitivity), shape and size.

b) Signal Processing Facility:

The development of a number of software tools for data analysis has been undertaken. These include a tool for radar scattering matrix analysis (SMTOOL), a tool for the interactive analysis of multi-channel radar data sets (DISTOOL), a tool for the geo-referencing of radar data, and a tool for the calibration and quality checking of radar data.

c) Advanced Spectrometric Techniques:

The comparision of different remote sensing techniques for vegetation analysis has been undertaken. This has included reflectance analysis (passive) and excited laser fluorescence (active).

In addition a contribution has been made to land degradation and soil erosion activities within IRSA by means of undertaking spectrometric measurements of rocks and soil in the laboratory and the field.

d) Laser Fluorescence:

Within this activity application software for the statistical analysis of the fluorescence signal has been developed. This has also has been extended to the analysis of water columns, including extinction coefficient, (gelbstof)f and phytoplancton.

In addition the Time Resolved Laser Fluorescensor has been installed on a helicopter, and the validation of the system under vibration conditions undertaken. This first measurements campaigns with this system were undertaken in the Ligurian Sea, and initial analyses of the data was undertaken.

Detailed description of the work forseen in 1992 (expected results)

Work forseen in 1992 for the four activities given above is as follows:

a) European Signature Laboratory:

The first full test of the Laboratory will be undertaken with a full calibration of all radar measurement units. In addition the first application measurements will be undertaken, and new data analysis software developed.

b) Signal Processing Facility:

The analysis of the data derived from the ERS-1 satellite will begin, including an input into the calibration of the synthetic aperture radar data (SAR). In preparation for this analysis an automatic ERS-1 workstation will be developed, and software tools developed for the analysis of SAR data will be verified on both ERS-1 data and airborne SAR data.

c) Advanced Spectrometric Techniques:

Laboratory signature measurements using both active and passive systems will be undertaken of a range of targets representative of agricultural, forested, coastal and marine ecosystems. In addition field measurements of marine and terrestrial ecosystems will be undertaken in order to validate interpretation algorithms, to calibrate new airborne and space borne sensors and to aid the interpretation of complex target signatures.

A feasibility study for a calibration laboratory for airborne sensors and field instruments will be undertaken.

Ground based atmospheric measurement techniques will be extended to a wider electromagnetic spectrum.

d) Laser Fluorescence:

Technical and scientific support will be given to the validation of the TRLF and the definition of a lighter and more robust industrial version. In addition methodologies for the analysis of TRLF data for the quantitative determination of substances present in water will be undertaken. This signal analysis software will be produced in a more operational version. Finally, effort will be given to the investigation of new applications of the TRLF.

Short description of evolution of work in 1993

Work will proceed along the lines set out for 1992, with more application measurements of the European Signature Laboratory, agricultural and forestry applications of ERS-1 data will be further developed, advanced spectrometric data analysis techniques will be tested and the TRLF will be tested in a more operational sense.

Tema(s)

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Convocatoria de propuestas

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Régimen de financiación

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Coordinador

Joint Research Centre (JRC)
Aportación de la UE
Sin datos
Dirección
Sito di Ispra
21020 Ispra
Italia

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Coste total
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