Accession Number:

ADA067111

Title:

AN/SQS-26 Analysis Progress Report. June 1, 1965.

Descriptive Note:

Corporate Author:

TRACOR INC AUSTIN TEX

Personal Author(s):

Report Date:

1965-06-10

Pagination or Media Count:

14.0

Abstract:

The effect of target aspect on the performance of a linear correlator is being studied. Sea data tapes recorded under similar conditions except with the target in varying aspect are on hand. This data will be analyzed to yield several points on the signal processing gain curve for each target aspect. These curves will be compared to determine the effect of target aspect on target strength as seen by a linear correlator one hundred cps FM slide of one-half second duration. The properties of reverberation in surface channel and convergence zone mode are being studied. TRACOR has a set of tapes of CW echo cycles taken with no target present at various depression angles and various relative bearings. This data will be analyzed to study the properties of reverberation in convergence zone and surface channel modes. Also for a typical echo cycle power spectra will be computed at various times in the cycle. This will be used to obtain a feel for the meaning of some of the parameters in reverberation analysis and to possibly improve the reverberation analysis method as a tool.

Descriptors:

• *SIGNAL PROCESSING
• *SONAR SOUND ANALYZERS
• EXPERIMENTAL DATA
• FREQUENCY MODULATION
• SIGNAL TO NOISE RATIO
• CONTINUOUS WAVES
• GAIN
• SHIPBOARD
• MATCHED FILTERS
• REVERBERATION
• ASPECT ANGLE
• SONAR TARGETS
• SONAR PULSES
• CONVERGENCE ZONES

Subject Categories:

• Cybernetics
• Acoustic Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE