Title :
Multiresolution Subspace Beam Formation Using a Partially Coherent Model
Author :
Bonneau, Robert J.
Author_Institution :
AFRL/IFTC, Rome
Abstract :
Traditional beam formation and waveform techniques rely on fixed apertures with single frequency assumptions that restrict the geometry of the aperture. This approach results constraints on the functionality of radar systems such as having simultaneous imaging and tracking ability, eliminating complex interference, and working with platforms that have limited bandwidth and processing resources. We propose an adaptive multiresolution orthogonalized sub-space beam formation method (AMOS) that allows optimization of apertures that may have non-uniform spacing with limited bandwidth. We combine this model with a partially coherent electromagnetic wavefront propagation model. We will show how this method compares to similar methods from a theoretical lower bound standpoint.
Keywords :
aperture antennas; array signal processing; maximum likelihood estimation; radar imaging; signal resolution; adaptive multiresolution orthogonalized subspace beam formation; apertures optimization; electromagnetic wavefront propagation model; partially coherent model; radar systems; radar systems functionality; waveform techniques; Apertures; Bandwidth; Electromagnetic modeling; Frequency; Geometry; Interference constraints; Interference elimination; Optimization methods; Radar imaging; Radar tracking;
Conference_Titel :
Aerospace Conference, 2007 IEEE
Conference_Location :
Big Sky, MT
Print_ISBN :
1-4244-0524-6
Electronic_ISBN :
1095-323X
DOI :
10.1109/AERO.2007.352662