Extraction of Virtual Scattering Centers of Vehicles by Ray-Tracing Simulations
- 21 November 2008
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Antennas and Propagation
- Vol. 56 (11), 3543-3551
- https://doi.org/10.1109/tap.2008.2005436
Abstract
Radar images of complex targets can be understood as a superposition of the reflected signals from a high number of scattering centers. To model complex targets for radar simulations, the plurality of scattering centers should be reduced to few significant scattering centers in order to minimize computational effort. The scope of this work is to present a technique to generate a significantly simplified RCS model of the vehicle with a limited number of virtual scattering centers, each with its own scattering characteristic, and how to group these scattering centers in a cluster database. The work is based on ray-tracing simulations of complex vehicle models. The ray-tracing simulations have been validated by measurements. The scattering centers may not be physically existing strong scattering centers, but virtual scattering centers representing a certain scattering behavior. In this paper, a technique for extracting such virtual scattering centers from a complex 3D-vehicle-model is presented. It is based on ray-tracing simulations of such models. As an example, the design model of a Ford Focus is used.Keywords
This publication has 17 references indexed in Scilit:
- Verification of 3D Ray-tracing with Non-Directional and Directional Measurements in Urban Macrocellular EnvironmentsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2006
- Scattering centre extraction for extended targetsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- A new inter-vehicle communications (IVC) channel modelPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- Interference from 24-GHz automotive radars to passive microwave earth remote sensing satellitesIEEE Transactions on Geoscience and Remote Sensing, 2004
- Impact of road surfaces on millimeter-wave propagationIEEE Transactions on Vehicular Technology, 2000
- A data compression technique for scattered fields from complex targetsIEEE Transactions on Antennas and Propagation, 1997
- Three-dimensional scattering center extraction using the shooting and bouncing ray techniqueIEEE Transactions on Antennas and Propagation, 1996
- GRECO: graphical electromagnetic computing for RCS prediction in real timeIEEE Antennas and Propagation Magazine, 1993
- Reduction of sidelobe and speckle artifacts in microwave imaging: the CLEAN techniqueIEEE Transactions on Antennas and Propagation, 1988
- A polarimetric model for the recovery of the high-frequency scattering centers from bistatic-monostatic scattering matrix dataIEEE Transactions on Antennas and Propagation, 1987