
	Where results make sense

Topic: Sonar

Related Topics

Passive radar

Sonobuoy

Radar

Integrated Undersea Surveillance System Badge

LIDAR

Synthetic aperture radar

Modern naval tactics

Types and uses of radar

Echolocation

History of radar

ASW

Chirp

SOSUS

SINAD

Fishfinder

In the News (Fri 25 Jul 08)

Gordon Brown

Derby County

Mike Huckabee

Lute Olson

Pearl Harbor

Sonia Gandhi

Ricky Hatton

Narendra Modi

Jesus Christ

Rudy Giuliani

	Sonar Kollektiv
		Like every year Sonar Kollektiv is throwing a big party at popkomm, unlike every year this year we throw a big birthday bash in one of Berlins most outstanding new locations:TAPE!
		Sonar Kollektiv is celebrating its 10th anniversary and you are...
		Sonar Kollektiv resident siren CLARA HILL reveals us a the folky side of her artistic personality under the project name CLARA HILL’S FOLKWAVES
	www.sonarkollektiv.com (290 words)

	Sonar Info - Encyclopedia WikiWhat.com (Site not responding. Last check: 2007-09-19)
		Sonar (sound navigation and ranging) is a technique that uses sound propagation under water to navigate or to detect other watercraft.
		When active sonar is used to measure the distance to the bottom, it is known as echo sounding.
		Sonar in freshwater lakes is different in operation from sonar at sea.
	www.wikiwhat.com /encyclopedia/s/so/sonar.html (1019 words)

	MSN Encarta - Sonar
		Sonar, acronym for SOund Navigation And Ranging, a detection system based on the reflection of underwater sound waves— just as radar is based on the reflection of radio waves in the air.
		A typical sonar system emits ultrasonic pulses by using a submerged radiating device; it listens with a sensitive microphone, or hydrophone, for reflected pulses from potential obstacles or submarines.
		Spinoffs from the development of sonar technology, or ultrasonics, include acoustic oceanography, the study of ocean properties using a variety of acoustic means, and acoustic tomography, an imaging or remote sensing technique using computer analysis to study the data collected when acoustic signals are passed through an object.
	uk.encarta.msn.com /encyclopedia_761575038/Sonar.html (231 words)

	Sonar - Wikipedia, the free encyclopedia
		SONAR (SOund Navigation And Ranging) — or sonar — is a technique that uses sound propagation under water to navigate or to detect other vessels.
		Active sonar data is obtained by measuring detected sound for a short period of time after the issuing of a ping; this time period is selected so as to ensure that the ping's reflection will be detected.
		In aircraft, active sonar is used in the form of disposable sonobuoys that are dropped in the aircraft's patrol area or in the vicinity of possible enemy sonar contacts.
	en.wikipedia.org /wiki/Sonar (2883 words)

	Side-scan sonar - Wikipedia, the free encyclopedia
		Side scan sonar (also sometimes called side-scan sonar, sidescan sonar, side looking sonar and side-looking sonar) is a category of sonar system that is used to efficiently create an image of large areas of the sea floor.
		Side scan sonar imagery is also a commonly used tool to detect debris items and other obstructions on the seafloor that may be hazardous to shipping or to seafloor installations by the oil and gas industry.
		Side scan uses a sonar device that emits pulses down toward the seafloor across a wide angle perpendicular to the path of the sensor through the water, which may be towed from a surface vessel or submarine, or mounted on the ship's hull.
	en.wikipedia.org /wiki/Side_scan_sonar (731 words)

	Sonar
		Sonar is a great help in determining the depth of the body of water.
		Sonar itself is a device that uses energy to locate objects.
		Sonar determines the distance of an object from the unit by echo ranging.
	www.geocities.com /CapeCanaveral/Cockpit/4745/sonar.html (989 words)

	Fast and Accurate Mobile Robot Sonar Target Tracking using Dual Pulse Coding
		One application of the sonar sensors is to quickly seek out and lock onto reliable ultrasonic reflectors in the environment as the robot moves, similar to the sonar trackers in OxNav (Stevens et al 1995) and a 3D tracker (Kuc 1993).
		Sonar researchers (Jorg and Berg 1998, Peremans et al 1993) have employed pseudo random and Barker pulse coding with durations of 1 to 2 milliseconds that require the use of DSP systems to process the resulting echoes.
		The sonar sensors are 0.33 metres from the robot centre of rotation and the 2 degree overlap intervals correspond to 1 cm of movement of each tracker towards and away from the plane.
	www.ecse.monash.edu.au /centres/irrc/LKPubs/Sensor_review99/sensrev.htm (3609 words)

	sonar. The Columbia Encyclopedia, Sixth Edition. 2001-05
		The main component of sonar equipment is an electroacoustic transducer that is in direct contact with the water.
		Sonar is widely used by commercial fishermen for locating shoals of fish.
		Research has suggested that sonar used for echo ranging can cause a disorder similar to decompression sickness (in which nitrogen bubbles form in body tissues) in some beaked whales and dolphins and that this may be linked to strandings of those species.
	www.bartleby.com /65/so/sonar.html (392 words)

	Sonar
		Sonar was pleased that his antics had helped bring some long overdue attention to Mordora.
		Sonar has battled Green Lantern many times over the years in the continued belief that defeating the hero will bring honor to Modora.
		Sonar recieved profiles in Who's Who: The Definitive Directory of the DC Universe #21 and Who's Who in the DC Universe #5.
	www.angelfire.com /ar/hellUSA/Sonar.html (382 words)

	NOAA Ocean Explorer: Satellites
		Sonar is applied to water-based activities because sound waves attenuate (taper off) less in water as they travel than do radar and light waves.
		Unlike active sonar, passive sonar does not emit its own signal, which is an advantage for military vessels that do not want to be found or for scientific missions that concentrate on “listening” to the ocean.
		Like side-scan, multibeam sonar provides a fan-shaped coverage of the seafloor, But instead of recording the strength of the return echoes, multibeam systems measure and record the time elapsed between the emission of the signal from the transducer to the seafloor or object, and back again.
	oceanexplorer.noaa.gov /technology/tools/sonar/sonar.html (864 words)

	Rip Rowan: SONAR 4 Producer Edition (Site not responding. Last check: 2007-09-19)
		SONAR 4 shows you each track with its own individual settings, and also constructs a track folder “clip” which shows all of the events within the folder as a single combined event.
		SONAR supports 5.1, 7.1, and a host of other surround formats, and the surround panner reflects the surround mode you are working with.
		SONAR 4 gets my unqualified recommendation, and my hat is off to the guys at Cakewalk for listening to their long-time users and fully understanding our needs.
	www.prorec.com /prorec/articles.nsf/files/sonar4 (2915 words)

	Sonar
		The output is used to trigger the sonar units INIT (which initiates a PING).
		This means that an object must be at least this distance from the sonar unit to be detected.
		In most cases, I used the sonar to avoid objects and keeping them around 2ft (60 cm) is a good rule of thumb.
	www.zagrosrobotics.com /sonar.htm (623 words)

	Science Wire from the Exploratorium and Public Radio International
		Sonar is simply making use of an echo.
		Dolphins and whales can tell the difference between objects as small as a BB pellet from 50 feet (15 meters) away, and they use sonar much more than sight to find their food, families, and direction.
		The LFA sonar being tested by the military can travel thousands of miles, and could cover 80% of the earth's oceans by broadcasting from only four points.
	www.exploratorium.edu /theworld/sonar/sonar.html (189 words)

	North Sails One Design
		This comprehensive tuning guide will give you the key information needed to stay in the front of the Sonar Fleet whether you are sailing at the local or national level.
		Your North Sonar jib does not have a wire in it.
		The Sonar has a very big main, therefore, it is very important to balance the boat for different wind strengths.
	www.northsailsod.com /class/sonar/sonar_tuning.html (1810 words)

	The Sex Offender Need Assessment Rating SONAR
		The SONAR subscales were created from the individual questions in the Hanson and Harris (1998, in press) data set that most closely matched the constructs of interest.
		The average SONAR score for the recidivists was 8.0 (SD = 2.4, range 1 to 14) compared to an average score of 5.4 for the non-recidivists (SD = 3.1, range -3 to 12).
		The SONAR was substantially correlated with static measures of risk, such as the VRAG, and the stable items in the SONAR carried most of the predictive accuracy.
	www.sgc.gc.ca /publications/corrections/200001b_e.asp (6040 words)

	Welcome to SePRO!
		While each Sonar formulation provides applicators an abundance of options when seeking to control nuisance aquatic vegetation in a variety of treatment situations, Sonar A.S. is available for immediate uptake into the target plants.
		Sonar A.S. provides the most efficient concentration level and is the ideal choice in waterbodies with minimal water flow and when targeting strands of emersed vegetation.
		Sonar Aquatic Herbicide selectivity is dependent upon dosage, time of year, stage of growth, method of application and water movement.
	www.sepro.com /default.php?page=sonaras (168 words)

	SONAR Home Page (Site not responding. Last check: 2007-09-19)
		SONAR is a service which, when presented with a list of Internet Protocol addresses, attempts to order that list according to the proximity from the SONAR server to each address.
		SONAR is designed to help networked applications make a reasonable choice between several alternative locations for a network-accessible service.
		While the first version of SONAR actively probes the network to estimate proximity, future versions of SONAR may be implemented in routers and thus derive the proximity information ``for free'' using routing tables.
	www.netlib.org /utk/projects/sonar (255 words)

	Sonar: Acoustic Harassment
		The Navy claims that LFA sonar will be able to detect today's "quieter" submarines so reliably that it plans to deploy LFA routinely throughout most of the world's oceans.
		The most recent results of the on-going investigation into this incident indicate that these whales died from the impacts of a loud sound acting on their air spaces—that is, from resonance effects.
		The Navy has had to admit that mid-frequency sonars may pose a serious risk to certain marine mammal species; even so, it continues to maintain that LFA sonar, which operates at a lower frequency than the Bahamas sonars, will be safe for all marine mammals.
	www.hsus.org /ace/11710 (851 words)

	Virginia Systems - Sonar Bookends
		Sonar Bookends is a very powerful and cost-effective solution for creating an index - although not the sophisticated package of the professional version.
		Sonar Bookends Professional has additional intelligence in its sorting routine to allow the sorting order (collating sequence) to be user defined and to take into account names starting with articles and non-alphabetic characters.
		Sonar Bookends Activate is available for Acrobat 4.0 and later on both the Macintosh and Windows operating systems.
	www.virginiasystems.com /products_b.html (2360 words)

	Encyclopedia article on Sonar [EncycloZine] (Site not responding. Last check: 2007-09-19)
		Paul Langévin invented the first sonar type device for detecting submarines in 1915.
		These first sonar devices were passive listening devices.
		Active sonars are extremely useful since they give the exact position of an object.
	encyclozine.com /Sonar (2076 words)

	Lowrance Electronics -- Tutorials -- Sonar -- Introduction (Site not responding. Last check: 2007-09-19)
		Carl and his sons began to conceptualize a compact, battery operated sonar that could detect individual fish.
		After years of research, development, struggle and simple hard work, a sonar was produced that changed the fishing world forever.
		From “little green boxes” to the latest in sonar and GPS technology, Lowrance continues to lead in the world of sportfishing sonar.
	www.lowrance.com /Tutorials/Sonar/sonar_tutorial_01.asp (352 words)

	The Sonar by Peter Harris
		Sonar is a machine that detects depth of oceans by sending sound waves.
		The active sonar sends a sound which is like a ping, when it hits an object; it is sent back up to the boat to tell how deep the water is. This is called echo ranging.
		Sonar I am a helper to many seamen, I serve to protect them from rocks and debris that could cause a hazard.
	www.summercore.com /cp19798/INVHarris.html (389 words)

	Discover: Seeing with sonar - accuracy of dolphins' echolocation is roughly equivalent to their eyesight - Brief Article
		The researchers conclude that sonar provides dolphins with a complex mental image of the world, one that appears to be similar in many respects to the one provided by their eves.
		To see if she could recognize with sonar an object she had first seen with her eves, an assistant stood at the edge of her tank, holding one of the objects, and let the dolphin look at it for a few seconds.
		To reverse the test - that is, to see if Elele could recognize objects visually that she had examined with her sonar - the researchers had her first probe a single object in the underwater box with her sonar.
	www.findarticles.com /p/articles/mi_m1511/is_n6_v17/ai_18289436 (579 words)

	PSIgate - Physical Sciences Information Gateway: Search/Browse Results
		The sidescan sonar data were collected along a grid of tracklines spaced approximately 5 km apart and were used to provide a reconnaissance overview of the surficial geology of the inner shelf.
		Sidescan sonar imagery and high resolution seismic reflection profiles were collected in Las Vegas Bay and Boulder Basin of Lake Mead to determine the surficial geology as well as the distribution and thickness of sediment that has accumulated in these areas of the lake since the completion of Hoover Dam.
		The joint aims of the cruise were firstly to obtain high resolution seismic reflection images and sidescan sonar images of the middle continental slope, secondly to study the acoustic images of the seafloor for evidence of seafloor hazards and thirdly to look for subsurface gas hydrates and their effects.
	www.psigate.ac.uk /roads/cgi-bin/psisearch.pl?term1=sonar&subject=All&limit=0 (1624 words)

	Command : SONAR (Site not responding. Last check: 2007-09-19)
		Only ships at sea may use sonar and sonar only detects ships which are at sea.
		If a ship with sonar gets pinged, that country receives a telegram saying "Sonar ping from x,y detected by ship Z!" In its current implementation, passive sonar is the ability to detect a ping.
		The active and passive sonar modes means that you want to be careful when you use sonar, because you will tell others where you are long before you actually detect them.
	www.wolfpackempire.com /infopages/sonar.html (617 words)

	SolarWinds.Net Toolset Applications - Network Sonar
		Network Sonar has been benchmarked on and was able to discover a network of over 500,000 devices on over 3,000 subnets in just under 4 hours.
		Network Sonar Wizard walks you through the rest of the set-up in less than a minute.
		One of the options of Network Sonar is to build a Microsoft Access Database of all data elements while it performs the discovery.
	www.solarwinds.net /Tools/Network_Discovery/Network_Sonar (206 words)

	Mercury Computer Systems : Industries : Aerospace and Defense : Sonar (Site not responding. Last check: 2007-09-19)
		Sonar systems use acoustic energy to detect objects of interest in water, such as submarines, surface ships, torpedoes, mines, or features of ocean topography.
		The broad array of sonar missions and platforms results in a wide range of computational requirements, from high-frequency beamforming to low-frequency adaptive processing and automated detection.
		Mercury has provided the sonar-processing computers for sonar platforms in submarines, ships, airplanes, and shore installations over many generations of computer technologies.
	www.mc.com /industries/aero/sonar (139 words)

Try your search on: Qwika (all wikis)