Obstruction Detection and Data Decimation for Airborne Laser Hydrography

Obstruction Detection and Data Decimation for Airborne Laser Hydrography PDF

Author:

Publisher:

Published: 1996

Total Pages: 16

ISBN-13:

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Airborne lidar technology is attractive for hydrographic surveying because of its high rate of area coverage coupled will high spatial data density, rapid-response and reconnaissance capabilities, and cost effectiveness. The National Ocean Service (NOS) has been involved in the design, implementation, and testing of such systems in conjunction with NASA, the U.S. Navy, and the U.S. Army Corps of Engineers (USACE) since 1975. Two topics of current interest are 1) the probability of detection of small objects on the sea bottom as a function of their size, and 2) the efficient reduction of the very large data sets to hydrographically representative but much smaller subsets. Results for both of these are reported here.

Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF

Author:

Publisher:

Published: 1982

Total Pages: 666

ISBN-13:

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Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Applications of Photonic Technology

Applications of Photonic Technology PDF

Author: J. Chrostowski

Publisher: Springer Science & Business Media

Published: 2013-06-29

Total Pages: 558

ISBN-13: 1475792476

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In this book we present a snapshot of the state of the art in photonics in 1994, showing typical applications and emerging new ones; discussing the key technologies behind these applications, their limitations, and prospects. The articles in this book are extended versions of the papers presented at the first International Conference on Applications ofPhotonic Technology (ICAPT'94), held in Toronto, Canada, on June 21-23, 1994. Photonics has been recognized as one of the key technologies for the 21 st century, as electronics was the technology of the 20th centrury and electrical engineering changed the life of people in the 19th century. According to the recent report of the Organization for Economic Cooperation and Development in Paris (OECD), the market for photonics will grow dramatically in the next 10 years with an expected world-wide expenditure of US $230 billion from some US $30 billion in 1992. The explosion of information technology was the largest driving force for the deployment of photonic technology. It created insatiable demand for ever-higher data transmission and processing rates, which cannot be sustained by electronics alone. Boosted by the enonnous investment of the telecommunications and defense industries, the demand for photonics (or optoelectronics) is steadily increasing. It is solidly established in the long haul communications, laser printers and CD-ROMs.