Gerhard Greving

Learn More
Navigation, radar and communication systems rely on radio signals. Objects in the vicinity of these systems can create distortions. This paper outlines the advanced computer system simulation by the integrated scattering analysis with the aid of numerical methods and the adapted system signal processing. Some practical cases are outlined.
Electronically Rotating antennas or rotating scatterers are common in modern systems. This paper deals with the system distortions of radar and navigation systems by objects, in particular by rotation effects. This rotation can be a mechanically or electronically rotating antenna (e.g. VOR/DVOR antenna) or a simple rotating scatterer in the radiation field(More)
  • G. Greving
  • 2009
Navigation, radar and communication systems rely on radio signals. Objects in the vicinity of these systems can create distortions. This paper describes the advanced system simulation by the integrated scattering analysis by numerical methods and the adapted system signal processing. The simulation procedure and the criteria for a suitable method are(More)
System simulations require the systematic scattering analysis of the distorting objects. An adequate efficient 3D-modeling of an A380 and subsequent scattering analysis and numerical system simulations are discussed for different model approximations. The modeling ranges from simple rectangular plates up to the most accurate 3D-model which includes the 3D(More)
This paper describes the application of the numerical scattering analysis embedded into systems simulations for navigation and radar systems. A special focus is on the theory and application and the numerical scattering analysis of the Radar Cross Section RCS for wind turbines WT. WT are installed on the ground and are in the mutual near field of the radar(More)
This paper describes the application of the numerical 3D-modelling and scattering analysis embedded into systems simulations for special applied cases. The effects of helicopter rotors on a DVOR-system and the effects of wind turbines WT on DVOR and on some radar systems (primary radar, weather radar) by its forward scattering are evaluated. The evaluation(More)
Layout changes of airports yield often to a conflict with existing navigation and landing systems. In the treated case, a new rapid exit taxiway has been planned very close to a DVOR/DME navigation system. Effects on the guidance signal can be predicted only by adequate state of the art 3D simulation methodology which takes into account the planned geometry(More)
The applicability of the mono-static radar cross section (RCS) for the weather radar (WR) and the wind turbines (WT) is evaluated by theoretical and numerical results. It is concluded that the RCS scheme is not applicable for objects on the ground and is not a useful parameter for the definition of safeguarding distances of WT to the WR. Proposals for a(More)
This paper describes the application of the numerical 3D-modelling and scattering analysis for the multi-scatterer case, such as for wind-farms WF related to a VOR-navigation system. The superposition of complex field components is discussed in the context of the VOR-system bearing angle errors and the rss-superposition and decomposition of bearing errors.(More)
  • 1