Accession Number:

ADA076494

Title:

Effects of Random Shading, Phasing Errors, and Element Failures on the Beam Patterns of Line and Planar Arrays.

Descriptive Note:

Technical document,

Corporate Author:

NAVAL UNDERWATER SYSTEMS CENTER NEW LONDON CT NEW LONDON LAB

Personal Author(s):

• Quazi ,Azizul H.
• Nuttall,Albert H.

Report Date:

1979-09-17

Pagination or Media Count:

14.0

Abstract:

The effects of random shading, phasing errors, and element failures on the beam patterns of line and planar arrays are investigated. The results indicate that the effects of element failures and random phasing errors on the beam pattern are more pronounced than the effect of shading errors. The deep side lobe level, in both line and planar arrays, is critically affected by random errors that include shading, phasing, and element failures. The combined effect of random shading, phase, and element failures on the beam pattern of a line array is more dramatic than it is on the beam pattern of a planar array. Author

Descriptors:

• *PATTERN RECOGNITION
• *ACOUSTIC BEAMS
• PHASE STUDIES
• ERRORS
• BEAM FORMING
• ACOUSTIC ARRAYS
• ACOUSTIC FILTERS
• HYDROPHONES
• ANALOG TO DIGITAL CONVERTERS
• STANDARD DEVIATION

Subject Categories:

• Acoustic Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE