Physical quantities in passive DSM and sonar equation
Introduction to passive underwater detection

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Physical quantities in passive DSM and sonar equation
Introduction to passive underwater detection

Author : Denis PILLON

Publication date: September 10, 2025 | Lire en français

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2. Physical quantities in passive DSM and sonar equation

2.1 Non-acoustic detection and its limitations

Acoustics are currently used for almost all DSMs. This operational dominance of sonar is a consequence of the many physical properties of ocean water, as described in detail at [K 170] . The question is whether the exploitation of other physical quantities could render sonar, and indirectly the present presentation, obsolete.

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