NDLI: Electronic scanning of sonar beam from a phased array of acoustic transducers controlled through programmable digital delay lines

Content Provider	IEEE Xplore Digital Library
Author	Balasubramanian, K. Rajaravivarma, V.
Copyright Year	2002
Description	Author affiliation: Dept. of Comput. Sci. & Eng., Eur. Univ. of Letke, Mersin, Turkey (Balasubramanian, K.)
Abstract	Electronic scanning of the beam with phased arrays is faster compared to rotating antennas, and with the phased arrays kept stationery, the beam could be shifted in a manner as desired by the system by controlling the phases. By and large, delay lines are used for producing the necessary phase shifts for the array elements. The use of digital delay lines improve further the rate of scanning and avoids the installation of bulky acoustic delay lines whose performance characteristics are affected by the environment in which it is operated. The recently reported digital delay line has simplicity in controlling the delay lengths from a single analog source. This project employs that digital delay line for scanning the beam in linear directions and also for scanning a sector like raster scanning. The implementations and performance characteristics are reported.
Starting Page	366
Ending Page	370
File Size	295201
Page Count	5
File Format	PDF
ISBN	0780373391
ISSN	00942898
DOI	10.1109/SSST.2002.1027069
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-03-19
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Phased arrays Sonar Acoustic beams Acoustic arrays Acoustic transducers Delay lines Antenna arrays Control systems Phase shifters Signal processing
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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