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Book Synopsis A Riverbank Echo-ranging System for Riverine Positioning by : Lloyd Breslau
Download or read book A Riverbank Echo-ranging System for Riverine Positioning written by Lloyd Breslau and published by . This book was released on 1968 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
One way to specify location in a river is to determine lateral (distance along a riverbank) coordinates using the river itself as the prime reference. This technique is particularly useful in an area where map coverage or electronic navigational coverage is inadequate for acceptable riverine positioning. The riverbank echo-ranging system provides only a lateral coordinate and a longitudinal coordinate must be obtained some other way, such as observation of identifiable shoreline features or electronic navigation fixes. Most oceanographic/hydrographic properties of rivers are much more sensitive to lateral positioning error than longitudinal positioning error and consequently a feasible positioning system could solely consist of riverbank echo-ranging and shoreline observation. The Kelvin Hughes Transit Sonar has proved adequate for riverbank is generated on a dry recording strip chart. The Transit Sonar consists of a shipboard recorder and transceiver console requiring 24 volts DC input power, and a hull-mounted transducer. The sonar output is a 1-milli-second pulse at 48 kHz. The significant feature that this instrument has for riverbank ranging lies in the transducer directivity pattern; a 1.5-degree beam in the vertical plane allows discrimination against the river-bottom echo and a 51-degree beam in the horizontal plane provides independence from ship yaw. Recent field tests in the Apalachicola River, Florida, have demonstrated that a clearly identifiably riverbank echo could be obtained up to a distance of 300 yards, which was the maximum distance tested. (Author).
Book Synopsis A Riverbank Echo-Ranging System for Riverine Positioning by : Lloyd Breslau
Download or read book A Riverbank Echo-Ranging System for Riverine Positioning written by Lloyd Breslau and published by . This book was released on 1968 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: One way to specify location in a river is to determine lateral (distance along a riverbank) coordinates using the river itself as the prime reference. This technique is particularly useful in an area where map coverage or electronic navigational coverage is inadequate for acceptable riverine positioning. The riverbank echo-ranging system provides only a lateral coordinate and a longitudinal coordinate must be obtained some other way, such as observation of identifiable shoreline features or electronic navigation fixes. Most oceanographic/hydrographic properties of rivers are much more sensitive to lateral positioning error than longitudinal positioning error and consequently a feasible positioning system could solely consist of riverbank echo-ranging and shoreline observation. The Kelvin Hughes Transit Sonar has proved adequate for riverbank is generated on a dry recording strip chart. The Transit Sonar consists of a shipboard recorder and transceiver console requiring 24 volts DC input power, and a hull-mounted transducer. The sonar output is a 1-milli-second pulse at 48 kHz. The significant feature that this instrument has for riverbank ranging lies in the transducer directivity pattern; a 1.5-degree beam in the vertical plane allows discrimination against the river-bottom echo and a 51-degree beam in the horizontal plane provides independence from ship yaw. Recent field tests in the Apalachicola River, Florida, have demonstrated that a clearly identifiably riverbank echo could be obtained up to a distance of 300 yards, which was the maximum distance tested. (Author).
Book Synopsis Proceedings of the Symposium by : United States. Navy Symposium on Military Oceanography
Download or read book Proceedings of the Symposium written by United States. Navy Symposium on Military Oceanography and published by . This book was released on with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Annual Report of the Commander by : United States. Naval Oceanographic Office
Download or read book Annual Report of the Commander written by United States. Naval Oceanographic Office and published by . This book was released on 1963 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 992 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalog of United States Government Publications by :
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1969 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bulletin Hydrographique International by :
Download or read book Bulletin Hydrographique International written by and published by . This book was released on 1970 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis MRIS Abstracts by : Maritime Research Information Service
Download or read book MRIS Abstracts written by Maritime Research Information Service and published by . This book was released on 1972 with total page 1120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
This book provides a summary of patterns so far recognized on side scan sonar records and offers interpretations of them in geological and other terms. The author prefers the term side scan sonar, however other names used include: asdic, basdic, sideways asdic, sideways looking sonar, sideways sonar, echo-ranger, horizontal echo sounder and lateral echo sounder.
Book Synopsis Sonographs of the Sea Floor by : R. H. Belderson
Download or read book Sonographs of the Sea Floor written by R. H. Belderson and published by . This book was released on 1972 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a summary of patterns so far recognized on side scan sonar records and offers interpretations of them in geological and other terms. The author prefers the term side scan sonar, however other names used include: asdic, basdic, sideways asdic, sideways looking sonar, sideways sonar, echo-ranger, horizontal echo sounder and lateral echo sounder.
Book Synopsis Oceanic Instrumentation Reporter by :
Download or read book Oceanic Instrumentation Reporter written by and published by . This book was released on 1968 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: