Assessment Report: Theoretical and Measured Performance Limits of Raytheon DE723M, Atlas AN1021 and Ross Surveyor Echo Sounders, Used on A Type 711 Survey Launch,
Abstract
In depth sounding, the sonar is called upon to perform detection and estimation of the bottom. For both its detection and estimation performance analysis, a suitable signal-to-noise ratio at the input to the transducer (or at some other reference point) is needed. and thus will be focused upon in this sonar equation analysis. For, at any time after transmission of the sounding pulse if the input signal-to-noise ratio is above a certain 'detection threshold' (fulfilling a specified false alarm probability criterion), a decision will be made by the receiver system that the bottom was observed, and a depth measurement provided. This report discusses the theoretical depth measurement accuracy limit (assuming the bottom echo has been properly detected) imposed by additive noise, and considers the detection threshold depth limit imposed by the false alarms.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 21, 1975
- Accession Number
- ADA028305
Entities
People
- Ali Zolfaghari
- Eui Koh
- John D. Sherman
- Talivaldis I. Smits
- William Bela Penzes
Organizations
- The Catholic University of America