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Polarimetric technology has been one of the most important advances in microwave remote sensing during recent decades. The Entropy-α decomposition, which is a type of polarimetric analysis technique, has been common for terrain and land-use classification in polarimetric synthetic aperture radar. For certain scenarios, this kind of processing is also of interest for the interpretation of Ground Penetrating...
The estimation of surface properties of small bodies in our solar system like asteroids, comets and small moons from RADAR observations is a particularly challenging task. Due to limitations in orbitography and instrument dynamics the associated inverse problems are usually ill-posed. Common methods in the solution of these kind of problems are regularized least-squares approaches where the proper...
The 3D FDTD simulation of wave EM propagation in large structures like the cometary nucleus of 67P/Churyumov-Gerasimenko is computationally expensive. With other approximative methods not all propagation phenomena can be sufficiently modeled. We propose to use the PSTD. This method overcomes the computational burdens and memory demands of the FDTD, while it allows accurate modeling of wave propagation...
The Mars Advanced Radar for Subsurface and Ionosphere Sounding, ldquoMARSISrdquo, on board MarsExpress is the first and so far only space borne radar that observed the Martian moon Phobos. Radar echoes were measured for different flyby trajectories. The primary aim of the low frequency sounding of the crust of Phobos is to prove the feasibility of deep sounding. In this paper we present a numerical...
OPC UA XML Web services mapping offers a Web service interface to access process data. Web services use XML technology for data exchange. Present-day Web browsers include XML functionality already as a standard feature, they are therefore very promising candidates for the implementation of monitoring and operating functions for industrial processes. However, the acceptance of Web services in industrial...
In this paper, an approach to overcome the limits of XML encoded device descriptions by employing semantic Web technologies is presented. Starting with an illustration of the state of the art of working with XML device descriptions, reasons for a need to overcome these limits are given. The semantic Web, as idea and implementation, is then introduced shortly, followed by a presentation of the architectural...
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