Accession Number : ADA291316

Title :   Acoustic Sounding System for Long Range Propagation in Middle East Surroundings.

Descriptive Note : Interim rept. no. 1, Nov 94-Jan 95,

Corporate Author : TECHNION RESEARCH AND DEVELOPMENT FOUNDATION LTD HAIFA (ISRAEL) EORD DIV

Personal Author(s) : Salem, L. B. ; Zlotnick, Z.

PDF Url : ADA291316

Report Date : 31 JAN 1995

Pagination or Media Count : 12

Abstract : The current report briefly covers the activities carried out during the first interim period. One of the tasks performed was the design and development of the Acoustic Directive Receiver Antenna (ADRA). The main parts of the ADRA namely the microphone array the data acquisition and data processing units have been developed. The ADRA is unitwise functional. A second task performed was the design and development of the Acoustic Power Source (APS) based on standard exponential horn type elements. The horns and associated drivers were selected based on their performance in the low frequency range (50-1000 Hz) . Procurement orders for the APS components have been placed.

Descriptors :   *RECEIVERS, *ACOUSTIC EQUIPMENT, ISRAEL, SOURCES, MIDDLE EAST, LONG RANGE(DISTANCE), DATA ACQUISITION, POWER SUPPLIES, PROCUREMENT, RANGE(EXTREMES), ANTENNA ARRAYS, MICROPHONES, NOISE(SOUND), DATA PROCESSING EQUIPMENT, SOUNDING, LOW FREQUENCIES.

Subject Categories : Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE