Optimum broadband beamforming for coherent broadband signals and interferences

Agrawal, Monika ; Prasad, Surendra (1999) Optimum broadband beamforming for coherent broadband signals and interferences Signal Processing, 77 (1). pp. 21-36. ISSN 0165-1684

Full text not available from this repository.

Official URL: http://www.sciencedirect.com/science/article/pii/S...

Related URL: http://dx.doi.org/10.1016/S0165-1684(99)00020-1


The problem of optimum broadband beamforming using linear arrays is considered with a view to avoid signal cancellation that normally results when signal-correlated interferences are present in the environment. The optimum approaches proposed here are based on a harmonic model for signals and interferences on the one hand, and a convenient characterization of the signal-free interference subspace from the observed data, on the other. The characterization so obtained leads to a broadband generalization of results reported earlier in the literature for narrowband beamforming. The three beamformers proposed here completely eliminate signal cancellation without any adverse effects. Computer simulations are presented which validate the expected performance of the three beamformers proposed here in the presence of correlated and uncorrelated interferences.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Wideband Optimum Beamforming; Coherent Sources; Uniform Linear Arrays; Correlated Sources
ID Code:54694
Deposited On:12 Aug 2011 06:13
Last Modified:12 Aug 2011 06:13

Repository Staff Only: item control page