Title :
Adaptive cardioid processing
Author :
Cox, Henry ; Zeskind, Robert M.
Author_Institution :
Orincon Corp., Arlington, VA, USA
Abstract :
Algorithms for adaptively steering the null of a cardioid to achieve interference rejection are developed. The algorithms are basically broadband, but by frequency filtering it is easy to steer independently in different frequency bands. Of particular interest is the nulling of highly directional reverberation when sonobuoys are considered as multistatic active receivers. Simple adaptive algorithms are shown to be effective in simulations
Keywords :
acoustic arrays; acoustic receivers; acoustic signal processing; adaptive filters; array signal processing; filtering and prediction theory; interference suppression; reverberation; sonar; acoustic array; adaptive algorithms; bearing estimation; broadband algorithms; cardioid processing; frequency filtering; highly directional reverberation; interference rejection; multistatic active receivers; null steering; nulling; optimum beamforming; sonobuoys; Acoustic sensors; Adaptive algorithm; Cardiology; Direction of arrival estimation; Filtering algorithms; Frequency; Interference; Packaging; Reverberation; Sensor arrays;
Conference_Titel :
Signals, Systems and Computers, 1992. 1992 Conference Record of The Twenty-Sixth Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
0-8186-3160-0
DOI :
10.1109/ACSSC.1992.269137
