An Automatic Target Recognition Algorithm Using Time-Domain Features
The capabilities of dolphins and humans to discriminate target properties from target echoes was discussed by Au (this volume). Nachtigall (1980) previously presented a similar review of dolphin discrimination capabilities. Predominant cues seem to be time-domain features related to differences in the highlight structure of target echoes. This paper describes a time domain feature extraction and pattern recognition algorithm which uses cues previously identified as salient for humans (Martin and Au, 1982, 1986). Results are also compared with those of a spectral processing model developed by Chestnut et al. (1979, 1981).
KeywordsAmplitude Ratio Time Separation Pattern Recognition Algorithm Target Echo Pattern Recognition Software
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