Near-Field Target Scattering Characterization and Radar Modeling
[Technical Report, Technical Report]
U.S. Army Combat Capabilities Development Command ,Army Research Laboratory
Pagination or Media Count:
This report develops near-field radar modeling techniques designed to produce the power-calibrated radar-received signal for arbitrary antennas and target configurations, based on computational electromagnetic simulations. The near-field radar cross-section concept is formulated together with its evaluation for simple-shape targets. Subsequently, we develop a general form of the radar equation that preserves the signals phase, the impact of near-field geometry, and the polarimetric coupling effects between the antenna patterns and target scattering. These concepts are brought together in a practical method of simulating complex near-field radar sensing scenarios with the AFDTD modeling software. Numerical validation examples are presented, emphasizing the differences between the near- and far-field radar operational regimes.
- Active and Passive Radar Detection and Equipment