Abstract
Band-limited acoustic sources of small spatial extent produce radiation patterns well approximated by those of multi-poles. Assumed limits on dimensionless size Ka and source efficiency lead to explicit rules for the necessary length of the multi-pole series.
Original language | English (US) |
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Pages (from-to) | 15-21 |
Number of pages | 7 |
Journal | Journal of Mechanics |
Volume | 16 |
Issue number | 1 |
DOIs | |
State | Published - 2000 |
Keywords
- Acoustic wave propagation
- Far-field pattern
- Multi-pole expansion
- Source modeling