Accession Number:

ADA114324

Title:

Analog Data Compression for Versatile Experimental Kevlar Array (VEKA) Telemetry.

Descriptive Note:

Technical note,

Corporate Author:

NAVAL OCEAN RESEARCH AND DEVELOPMENT ACTIVITY NSTL STATION MS

Personal Author(s):

• Gholson,Norman H.
• Harris,Portia

Report Date:

1981-08-01

Pagination or Media Count:

38.0

Abstract:

The feasibility of amplitude data compression has been explored with respect to the Versatile Experimental Kevlar Array VEKA analog multiplexed telemetry of acoustic data. A Fourier transform approach has been developed to quantify the potential benefits and penalties associated with a particular invertible compression function. Analysis was performed using sinusoidal signals and white noise. Results of the analysis indicate that substantial gains in dynamic range can be achieved with tolerable sacrifices in telemetry system linearity. Specific examples for a particular telemetry system illustrate an increase in dynamic range from 80dB to approximately 120dB. Author

Descriptors:

• *Acoustic data
• *Telemetering data
• *Data compression
• *Information theory
• Acoustic arrays
• Signal processing
• Data reduction
• Fast Fourier transforms
• Linearity
• Dynamic range
• Signal to noise ratio
• Ambient noise
• Multiplexing
• Trade off analysis
• Algorithms

Subject Categories:

• Cybernetics
• Acoustic Detection and Detectors
• Telemetry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE