Surface-mounted acoustic vector-sensor array processing

We consider the passive direction-of-arrival (DOA) estimation problem using arrays of acoustic vector-sensors located in a fluid, at or near a plane boundary. We formulate a general measurement model applicable to most surfaces, and derive an expression for the Cramer-Rao bound (CRB) of a single sou...

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Veröffentlicht in:1996 IEEE International Conference on Acoustics, Speech, and Signal Processing Conference Proceedings Jg. 6; S. 3169 - 3172 vol. 6
Hauptverfasser: Hawkes, M., Nehorai, A.
Format: Tagungsbericht
Sprache:Englisch
Veröffentlicht: IEEE 1996
Schlagworte:
Acoustic measurements
Acoustic sensors
Array signal processing
Direction of arrival estimation
Pressure measurement
Sea measurements
Sea surface
Sensor arrays
Sonar
Velocity measurement
ISBN:9780780331921, 0780331923
ISSN:1520-6149
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Abstract We consider the passive direction-of-arrival (DOA) estimation problem using arrays of acoustic vector-sensors located in a fluid, at or near a plane boundary. We formulate a general measurement model applicable to most surfaces, and derive an expression for the Cramer-Rao bound (CRB) of a single source. The CRB is used to analyze the practically important cases of ideal rigid and pressure-release surfaces in detail. An important quantitative comparison is made between a stand-off array of pressure sensors and a surface-mounted array of velocity sensors for the latter surface. In particular, we define and find an expression for the critical distance, at which the arrays have an equivalent performance.
AbstractList We consider the passive direction-of-arrival (DOA) estimation problem using arrays of acoustic vector-sensors located in a fluid, at or near a plane boundary. We formulate a general measurement model applicable to most surfaces, and derive an expression for the Cramer-Rao bound (CRB) of a single source. The CRB is used to analyze the practically important cases of ideal rigid and pressure-release surfaces in detail. An important quantitative comparison is made between a stand-off array of pressure sensors and a surface-mounted array of velocity sensors for the latter surface. In particular, we define and find an expression for the critical distance, at which the arrays have an equivalent performance.
Author Nehorai, A.
Hawkes, M.
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PublicationTitle 1996 IEEE International Conference on Acoustics, Speech, and Signal Processing Conference Proceedings
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Snippet We consider the passive direction-of-arrival (DOA) estimation problem using arrays of acoustic vector-sensors located in a fluid, at or near a plane boundary....
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StartPage 3169
SubjectTerms Acoustic measurements
Acoustic sensors
Array signal processing
Direction of arrival estimation
Pressure measurement
Sea measurements
Sea surface
Sensor arrays
Sonar
Velocity measurement
Title Surface-mounted acoustic vector-sensor array processing
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