Accession Number:

AD0752763

Title:

Optimum Passive Signal Processing for Array Delay Vector Estimation

Descriptive Note:

Corporate Author:

NAVAL ORDNANCE LAB WHITE OAK MD

Personal Author(s):

• Hahn, William R.

Report Date:

1972-09-01

Pagination or Media Count:

22.0

Abstract:

For the purpose of localizing a distant noisy target, or inversely, calibrating the receiving array, the time delays defined by the propagation across the array of the target-generated signal wavefronts are to be estimated in the presence of array self-noise. The Cramer-Rao matrix bound is used to show that either properly filtered beamformers or properly filtered systems of multiplier correlators can be used to provide efficient estimates. The effect of suboptimally filtering the array outputs is discussed.

Descriptors:

• *SONAR SIGNALS
• OPTIMIZATION
• PROCESSING
• MATRICES(MATHEMATICS)
• SONAR ARRAYS
• SONAR TARGETS
• PASSIVE SYSTEMS
• POSITION FINDING
• CALIBRATION

Subject Categories:

• Cybernetics
• Acoustic Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE