High Continuous Bandwidth Multichannel Acquisition System.

Multichannel data acquisition has been a keystone of 7 ONR sponsored Arctic acoustic research programs conducted jointly by WHOI and MIT investigators from 1978 through 1989. This report describes the status and capability of the most recent system developed at WHOI for the purpose of acquiring digi...

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Bibliographic Details
Main Author: Heydt, Keith Von Der
Other Authors: WOODS HOLE OCEANOGRAPHIC INSTITUTION MA
Format: Text
Language:English
Published: 1991
Subjects:
Acoustics
Command
Control and Communications Systems
*BANDWIDTH
*MULTICHANNEL
DATA TRANSMISSION SYSTEMS
COMPUTERS
INTERFACES
RATES
FEASIBILITY STUDIES
SAMPLING
DATA ACQUISITION
DISKS
RESEARCH MANAGEMENT
STORAGE
OPTICAL STORAGE
DYNAMIC RANGE
ISLANDS
ARCTIC REGIONS
MEASUREMENT
DATA BASES
DIGITAL SYSTEMS
*MULTICHANNEL ACQUISITION SYSTEMS
*ARCTIC ACOUSTIC RESEARCH
SCSI BUS
OPTICAL DISK STORGE
Arctic
Heard Island
Online Access:http://www.dtic.mil/docs/citations/ADA239114
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA239114
Description
Summary:Multichannel data acquisition has been a keystone of 7 ONR sponsored Arctic acoustic research programs conducted jointly by WHOI and MIT investigators from 1978 through 1989. This report describes the status and capability of the most recent system developed at WHOI for the purpose of acquiring digital data from up to 64 channels at sampling rates up to 20 kHz per channel with data bandwidth to 5120 Hz. ONR funded the development of and use of this system and its prototype for 2 Arctic field experiments, PRUDEX 87 and CEAREX 89. It was most recently used during the Heard Island Feasibility Experiment in February 1991. Of note are the auto-gain ranging capability offering a dynamic measurement range of greater than 120 dB, the continuous storage capability of up to 200,000 samples per second to a Small Computer System Interface (SCSI) device, typically optical disk, and easy expandability with additional identical channels connected in parallel.

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