Characterization of near-field scattering using a multiple weighted summed beamformer

Gordon J. Frazer; Moeness G. Amin

doi:10.1117/12.452044

6 December 2002 Characterization of near-field scattering using a multiple weighted summed beamformer

Gordon J. Frazer, Moeness G. Amin

Proceedings Volume 4791, Advanced Signal Processing Algorithms, Architectures, and Implementations XII; (2002) https://doi.org/10.1117/12.452044
Event: International Symposium on Optical Science and Technology, 2002, Seattle, WA, United States

Abstract

The Sensor-Angle Distribution (SAD) is a recently introduced tool representing the power arriving at each sensor as a function of angle (or spatial frequency). It can be used to characterize near-field scatter environments. The SAD, as originally introduced, under-sampled the spatial correlation of the received signal (measured at each sensor) causing the SAD to be aliased for common source location cases. In this paper we indicate how this may be overcome. Additional results are provided showing that the SAD may be implemented as a multiple weighted subarray beamformer.

Citation Download Citation

Gordon J. Frazer and Moeness G. Amin "Characterization of near-field scattering using a multiple weighted summed beamformer", Proc. SPIE 4791, Advanced Signal Processing Algorithms, Architectures, and Implementations XII, (6 December 2002); https://doi.org/10.1117/12.452044

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