Title :
Adaptive beamforming with the multichannel least squares lattice using beam-space constraints
Author :
Wazenski, M. ; Alexandrou, Dimitrios ; Breed, B. ; DeFatta, D.
Author_Institution :
Dept. of Electr. Eng., Duke Univ., Durham, NC, USA
Abstract :
Rejection of reverberant interference in active sonar systems via adaptive beamforming is approached by means of adaptive noise canceling (ANC). The multichannel version of the joint process least squares lattice algorithm (JPLSL) is the selected adaptive engine by which interfering reverberation is eliminated from beamformed data. Through application of beamspace constraints, signals arriving from selected directions are protected from cancellation by the JPLSL filter. Simulated data, generated by the Sonar System Toolset (SST) software, are used to demonstrate adaptive beamformer performance
Keywords :
acoustic signal processing; array signal processing; digital simulation; electrical engineering computing; least squares approximations; noise abatement; reverberation; sonar; Sonar System Toolset software; active sonar systems; adaptive beamforming; adaptive noise canceling; beam-space constraints; filter; joint process least squares lattice; multichannel least squares lattice; reverberant interference rejection; Active noise reduction; Adaptive systems; Array signal processing; Engines; Interference cancellation; Lattices; Least squares methods; Noise cancellation; Reverberation; Sonar;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1992. ICASSP-92., 1992 IEEE International Conference on
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-0532-9
DOI :
10.1109/ICASSP.1992.226031
