| 摘要 |
Apparatus and method for compensating for differences in time at which an incoming acoustic wave is received by an array of acoustic signal receivers to take account of the shape of the incoming wave and the non-zero incidence angle of its approach. Each receiver is provided with a time delay module that introduces a large or coarse scale time delay DELTA tL plus a small or fine scale time delay DELTA tS, where DELTA tL is an integral multiple of a coarse scale time interval length DELTA tc and DELTA tS may be varied continuously from 0 to a predetermined time interval length ( DELTA tS)max that may be made at least as large as DELTA tc.
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