Accession Number:

ADA031426

Title:

Maximization of Reverberation Index.

Descriptive Note:

Technical rept.,

Corporate Author:

NAVAL UNDERWATER SYSTEMS CENTER NEW LONDON CONN NEW LONDON LAB

Personal Author(s):

Report Date:

1976-10-02

Pagination or Media Count:

61.0

Abstract:

Investigations into the problem of maximizing array gainDI for situations where ambient noise is the dominant interference have been conducted over the preceding two decades and possibly earlier. These investigations have resulted in mathematical solutions having significant promise in various practical applications. A closely related problem arises when interference is dominated by reverberation in this situation the gain against reverberation the reverberation index, RI must be maximized. The same general mathematical approach can be applied to both problems in that the omnidirectional ambient noise limited condition can be considered a specific case of the more general directional ambient noise limited condition and the reverberation limited condition. Much of the existing theory that has been developed has been directed at specific cases, thus leaving unfinished a comprehensive treatment of the general case. A concomitant existing problem involves the determination of the computational complexity involved in the mathematical solution to the described problems since this complexity strongly influences the degree to which computational methods can be applied to practical problems.

Subject Categories:

  • Cybernetics
  • Acoustic Detection and Detectors
  • Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE