초록 ▼

The sonar array post processor employs an adaptive processing, known as matched beam processing, in the beam domain which takes analog or digital conventional beamforming outputs from a sonar array, multiplies them by a set of adaptive weighting coefficients and produces a new set of beams. The new

The sonar array post processor employs an adaptive processing, known as matched beam processing, in the beam domain which takes analog or digital conventional beamforming outputs from a sonar array, multiplies them by a set of adaptive weighting coefficients and produces a new set of beams. The new output beam of highest intensity yields the ideal maximum signal gain and correct target bearing. Continuous target tracking provided by the sonar array post processor in the endfire direction of a horizontal line array minimizes the towing ships maneuvers and for, a bottom mounted surveillance system, a smaller number of arrays are required.

대표청구항 ▼

[ What is claimed is:] [1.] An acoustic signal processor system comprising:means for detecting an acoustic signal at a predetermined time;means for processing the acoustic signal to obtain a conventional beamforming vector;means for computing a beam weighting coefficient to be applied to the convent

[ What is claimed is:] [1.] An acoustic signal processor system comprising:means for detecting an acoustic signal at a predetermined time;means for processing the acoustic signal to obtain a conventional beamforming vector;means for computing a beam weighting coefficient to be applied to the conventional beamforming vector producing a complex beam vector for both the conventional beam and a replica field for source localization to determine matched beam power; andmeans for displaying matched beam power versus time.