|
homepage of Robert Geise |
|
expert‘s report on bearing error calculation methods performed by the Deutsche Flugsicherung in the context of the VHF omnidirectional radio range and wind turbines Gutachten über die Bewertungsmethodik der Deutschen Flugsicherung zur Berechnung des Störeinflusses von Windenergieanlagen auf das Drehfunkfeuer client and consortium: Enercon Windpark GmbH task:: development of an expert‘s report—easy understandable for non-experts— about the bearing error analysis as performed by the German flight safety organisation.. duration: 2 Weeks
scaled measurements of landing course disturbances due to plate lines for minimizing wake turbulences scope: construction of plate lines at airport runways for reduction of wake turbulences of aircraft client and consortium: German Aerospace Center (DLR), institute of atmospheric physics, task: compliance analysis, whether plate lines can disturbe the landing course signal of the instrument landing system, by means of scaled measurements developed in earlier research projects duration: 1 month
EU-Project SIRENA scope: development of a simulation tool for calculating field strengths of radar and navigation systems at airports client and consortium: EU-project in the sixth framework program task: planning and performing representative field strength measurements at the airport Toulouse/Blagnac, validation and optimization of the software tools by assessment of measurement data duration: 1,5 years
experts‘s report on the enhancement of the airport Frankfurt/Main scope: creating a quality assuring report client: ministry of economics, transportation and technology, state of Hessen task: review and assessment of external reports with respect to integrity of radar and navigation systems, as well as technical and biological electromagnetic compatibility , comparison with self-made analyses and measurements duration: 0,5 years
measurements for certification of GSM-systems onboard aircraft scope: analysis and experimental proof of electromagnetic compatiblity of GSM systems onboard aircraft client: Airbus Deutschland GmbH task: planning and performing on-ground and in-flight measurements, to ensure EMC of GSM-systems onboard aircraft, design of adequate measurement setup duration: 1 year
measurements of dielectric properties of complex and composite materials scope: determination of dielectric constants of various materials and complex structures inside an aircraft cabin client: Diehl Aerospace GmbH task: depending on the frequency range and material sample different measurement setups are used to determine the dielectric properties of various aircraft cabin interiors as an input basis for channel modelling tools. duration: 4 months
calibration of aircraft antennas scope: determination of antenna factors of ILS localizer and glide-antennas mounted on a measurement aircraft client: Cobham Aviation Services UK, AFI Flight Inspection GmbH task: calibration of reference antennas, planning and performing measurements with an aircraft on-ground, measuring antenna factors and directional patterns duration: 4 months
coverage measurements in aircraft cabin scope: investigation by measurements on an optimal antenna architecture for sufficient signal coverage in an aircraft cabin client: Airbus Deutschland GmbH task: planning and performing measurements within an aircraft cabin and corresponding evaluation of antenna structures for a good signal coverage of handheld passenger devices. duration: 2 months participation on several EMC measurements performing standardized immunity tests and investigations of radiated and cable bound coupling mechanisms for the project partners Airbus Deutschland Gmbh, Lufthansa-Technik, Daimler Benz AG |
|
projects with industrial partners |
|
home |
|
curriculum vitae |
|
projects |
|
publications |
|
references |
|
hobbies |
|
home | curriculum vitae | projects | publications | references | hobbies |
|
electromagnetic compliance analysis of wind turbines with aeronautical navigation systems development of standards with scaled measurements and tests with 1:1 flights for validation This research project intends to create an objective, scientifically based and litigable decision basis for compliance analysis between the VHF omnidirectional radio range (VOR) and wind turbines as static and dynamic scattering objects. This provides an up-to-now non-existing basis for plan-approval procedures of wind farms. Currently, 1800 MW of potential installed wind power is blocked due to concerns of compliances. The project at hand comprises measurements in a miniaturized environment, which allows necessary investigations with sufficient accuracy and flexible variations of input parameters. In particular, input parameters describing states of wind farms, e.g. rotation speed, wind direction, synchronicity, terrain topology can be considered to have crucial influence. The particular ability of predicting compliance between wind turbines and the VOR with the means of scaled measurements will be validated with special significant scenarios, e.g. worst case scenarios. More information can be found here.
development and validation of an airport environment that is electromagnetically scaled: increase safety and capacity of airports -project „Sk-ILS“ In this reserach project, funded by the german ministry of education and reserach, a mini-airport (size about 30m x 6m) is validated to investigate multipath propagation issues for navigation systems, especially the instrument landing system. This scaled airport environment offers high flexibility and availability and aims at an increase of safety and capacity of airports.The scaled airport environment can be adopted to arbitrary navigation systems, e.g. the VHF omni directional radio range (VOR), probably influenced by rotating wind turbines. More information can be found here.
enhancement of radar cross section for different scattering problems (theoretical considerations and measrurements) The classical definition of the radar cross section is further developed for the cases of moving objects, such as rotating wind turbines,.and for the case of non-ideal illumination. Beside fundamental investigations with scattering scenarios with generic objects like spheres and plates new mathematical models will be developed.
measurement and characterization of different environments for UWB and wireless applications Propagation properties of wireless channels are measured inside buildings, aircraft, busses and cars. Relevant measures are derived and generalized for channel modelling. Further applications are car-to-car communication scenarios, for which the scattering properties of traffic signs are relevant, as well as different traffic situations, such as cross roads, urban or rural traffic.
modular construction system for arbitrary antenna patterns Modular waveguide elements are combined to antenna arrays to synthesize arbitrary antenna patterns, linear and circular polarization. With a special element design synthesis technique full wave simulations for optimizations become obselete for pattern synthesis.
|
|
research projects |