Position-Determining System for Sea-Spider Hydrophone Arrays
Abstract
An electronic system has been developed which is capable of measuring the elapsed travel time for three acoustic sources to any one of 12, 24, 36 hydrophones. Though it was developed and configured for the Pacific Sea-Spider array, it is applicable, with modifications, for determining the position of 12 hydrophones relative to three sources in known positions. Pacific Sea-Spider was a trilegged, moored, subsurface array of 30 hydrophones. It had three acoustic sources, one near each anchor point. The position-determining system developed for this array includes control logic to select any of five sets of 12 hydrophones and a single source, a crystal-controlled clock to measure the travel time, 12 level and phase detectors to determine reception of the acoustic signal and to command time transfer, a storage register with jam transfer of the time data, and output logic to control a paper-tape punch for data output. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 30, 1971
- Accession Number
- AD0891210
Entities
People
- W. M. Lawson Jr
Organizations
- United States Naval Research Laboratory