sonar

while it looks round from the information so far, the resolution of the sonar image was not high enough to verify that it is indeed round.

You can have your subs emit sonar pings to see other objects, but these pings will give away their location to any listening devices.

Klopper said he was unaware of details, but past speculation has included sonar buoys able to identify sharks and transmit a warning signal.

One of the first uses of the material is likely to be in warships trying to avoid sonar radar, which picks up on the noise ships emit.

The system uses sonar to locate and define structure, composition, as well depth directly below the transducer of up to 45 degrees coverage.

In an earlier press release issued on February 6, the Ministry of Defense said the vessel's sonar dome had been damaged in a collision.

Compared with optical image, the sonar image resolution is lower, and the sonar image generally has no very complicated graphics to process.

Note: Do not place the Sonar sensor directly on an icy surface, cut a whole in the ice first and then place the sonar in the water.

Sonar Signal Simulator is one of the important equipments used in the debugging and mensuration of performance parameters of sonar system.

This was a surprise, as bats' sonar should allow them to detect moving objects even better than they do stationary ones.

If you enjoy fishing, then you'll have the time of your life finding fish with this fish finder that uses sonar technology.

According to reports, the "ship" of the sonar system is not in working condition, so even where the submarine could not find.

The U. S. government says Chinese vessels harassed the USNS Impeccable, noting it was using sonar equipment designed to monitor submarines.

A device used to automatically follow a sonar signal to which it is assigned.

It covers the general features of sonar systems, transducers and arrays, signal processing and performance evaluation.

But Google said the lines represented sonar data collected from boats.

As the sea lion pups splash happily in the water, they're revealing their location to the finely tuned sonar receptors of the whales.

Ship radiant noises obtained by an array sonar are convolutive mixtures for multiple - sources and ocean noises through multiple -paths .

We make maps of these mountain ranges with sound, with sonar, and this is one of those mountain ranges.

A Cuban plant that depends on bat pollination evolved a special leaf that acts like a satellite dish for bats' sonar, new research says.

When you load a project, SONAR checks to see if the exact same output ports are assigned as when the project was saved.

Some scientists say noise from all the boat traffic may impair a whale's sonar ability as much as 95 percent.

Sonar : Technique for detecting and determining the distance and direction of underwater objects by tracking acoustic echoes.

The sonar utilized by the military is a very dense and a somewhat electrical frequency.

And we'll start off from shallow water and use side scan sonar, trolling it up and down lanes as we call it paths.

"The high frequencies make the bats' sonar beam very focused and short-ranged, " he said.

The presented algorithm can be used to estimate multi-path coefficients in radar, sonar and communication systems.

World-class equipment, including advanced sonar sound machines and sand pumps, will be used for the mission.

This project proposed to develop a convenient and automatic sonar depth measurement system which can be operated in these circumstances.

Metal tested to endurance creaks and groans; a sonar pings just often enough to maximise the tension.

The traditional way of general use sonar ships berthing alongside the slower but sonar, precision is not accurate enough.

Array signal processing has found wide applications in many areas, including radar, sonar, mobile communications, medical engineering, etc.

The initial reports were the result of bad weather and faulty sonar and radar readings.

French submarine is being sent to join in the search. It has sonar equipment that could help locate the airliner's flight data recorders.

It proves the validity of the recognised arithmetic, and provides theoretical foundation for the detected sonar of the diver.

And they were able to do more intensive sonar work there and were able to identify more structures.

By emitting high-pitched sounds and listening to the echoes, also known as sonar, bats locate prey and other nearby objects.

Ship-based sonar would help, but ship-based instruments have mapped only about 10 percent of the ocean floor so far.

Sonar captures numerous metrics for your code base and shows them in charts and other visualizations.

In the case of military submarines they would have the advantage over sonar of being passive.

Rare earths are essential for a wide range of military hardware, be it missiles or sonar.

Researchers discover that whales and bats each evolved with the sophisticated ability to use sonar in identifying objects from a distance.

Deep tow devices are used for some side-scan sonar, gravity and magnetic surveys.

provides intact theory prove to sonar direction finding precision formula, and derives out the more accurate calculation formula.

Compared with a conventional fish-finding sonar it is a miracle, with a scanning rate that runs a million times faster.

The native and foreign researchers have done a great deal of work in this field to improve the ability of sonar systems.

In his work to develop radar, sonar and ultrasound he performed all the necessary tests and provided all the proofs required.

Extracting line spectrum from ship- radiated noise is a key technique for identification of underwater targets in passive sonar system.

A spot of light on a radar or sonar screen indicating the position of a detected object, such as an aircraft or a submarine.

Well then he must be under water. And obviously we don't have Sonar.

Each Solo carries a camera at either end, sonar to scan below the water, and lasers to search sewer walls for acid corrosion.

BBN has developed the ARTS array vehicle concept specifically to address the formidable problems of low-frequency active sonar sources.

With the appearance of the quiet submarine, active sonar is attached much more importance and play a more and more important role.

The researchers also studied the intensity and direction of simulated bat sonar reflecting from the M. evenia leaves.

the detection of man-made object in sonar image is one of crucial problems in the field of underwater detection.

Environmentalists are arguing that the sonar can cause whales to beach themselves and harms other marine animals.

Modern sonar, radar, and other communication systems testing and simulation require high-precision signal waveforms with certain regularity.

SONAR's port assignments can change if you load the project on a different hardware configuration or change driver models.

Lower a submarine strongly from the bad voice, the work environment of the improvement submarine sonar.

Actual data were utilized to train BP neural network that can be used to accurately forecast submarine sonar self-noise.

Sound reflection and sound shadow of high frequency imaging sonar detecting sea mine underwater was simulated with computer.

A design method for an intellectual sonar signal processing system is provided.

In the sonar room Chief Petty Officer Mike Morrison and Sonarman First Class Billy Stewart faced display screens and computer keyboards.

Underwater warfare by Sonar is a key topic and major type of the oceanic acoustic information engagement.

High quality signal source is the basic guarantee of the realization of high-performance imaging sonar.

Next year's model will have a Doppler sonar to help it avoid high-speed collisions with unsuspecting swimmers.

High speeds can make it hard to decipher the sonar signals used for guidance.

Under photoelectric imaging is an effect complement of sonar detection.

The frequencies used in sonar systems vary from infrasonic to ultrasonic.

Thales Australia is collaborating on sonar evolution with DSTO Maritime Operations Division.

Ocean is a complicated and changeable channel which may distort the signal and degrade the performance of sonar system.

Feature extraction of targets radiated-noise is the key technique of passive sonar target recognition system.

Searches were conducted using hot-air-balloons and infrared night time cameras, sonar scanners and submarines.

In object detection of high frequency sonar image, it needs to get the parameters of foreground objects after image segmentation.

In this dissertation, we study a supergain hydrophone array to improve the detection performance of passive sonar.

System composition, capability of mine hunting sonar and expendable ROV are briefly introduced in the article.

In the following years, he applied his programming and DSP expertise to other interesting areas, including sonar and underwater acoustics.

Noise reduction for interferometric phase images in synthetic aperture sonar(SAS) is addressed in this paper.

The sonar installation platform is equipped with the sonar array which is isolated with the inner part of the towed body housing.

Video and sonar data from the submarine are displayed as a volleyball-sized hologram.

The laser, infrared, and sonar sensors can provide distant and directional information about an object.

Guests watch performances at the 17th Advanced Music and Multimedia Art International Sonar Festival in Barcelona, Spain.

The simulation of high-frequency multibeam sonar image is the main task in the dissertation.

It's an important part of aviation antisubmarine to search submarine by using dipping sonar witch is equipped in the helicopter.

The multi channel data acquisition and signal processing system in the novel digital imaging sonar are studied.

To solve some knotty problems in sonar target detection measures, a new compound deciding network model is proposed.

During the pressure test, BP engineers are continuing to monitor the well with seismic, sonar and other equipment.

Extended spirality searching model of dipping sonar and submarine moving models were built.

Lawsuit Filed in California Claims Navy Sonar Disturbs and Sometimes Kills Whales and Dolphins.

In the past, sling sonar's antisubmarine efficiency was simply managed, that was out of accord with fact.

A path following method is introduced with virtual sonar's model which originates from the behavior of human beings.

Analysis of seafloor interface side-scattering is the key technology of improving the detection performance of bistatic sonar.

They are using sonar to locate the engines which are believed to have detached after the US Airways Airbus A320 hit the water on Thursday.

Development is more suitable for the submarine sonar, offshore work to improve the working environment.

U. S. military spokesmen have confirmed only that the navy ship's sonar equipment was damaged, but not how that damage occurred.

obtained the formula of sonar array space-time correlation function of bathymetric sidescan sonar (BSSS).

As to the oscillation of the outputs of the positioning sonar, the linear smoothing method is adopted.

Why might the Costa Concordia's depth-sounding sonar have been ignored?

Sound waves emitted by or reflected from an object are detected by sonar apparatus and analyzed for information.

Years passed, and evidence proving Nessie's existence (including photographs, video and even sonar) mounted.

Besides, the Pentagon claims that China attacked the sonar system of the Impeccable first.

Scientists have long suspected seabed rivers can form, after sonar scans revealed meandering channels in many of the world's oceans.

I'm getting a strong response on the sonar.

Array signal processing is widely used in various industries, such as radar, communication, sonar and earthquake detecting etc.

We will utilize sonar to assist in transmuting the remaining electrical and radioactive distortion that pervades your field.

Targets captured by passive sonar are currently the radiant noises of ships or torpedoes.

It belonged to Prof. Harold Edgerton, the inventor of the sonar device.

Searching for submarine by Anti-submarine air fly using lifting sonar isn't successive.

and the test ranges for torpedo, sonar, and submarine-launched ballistic missile in the east coast.

An alternative to rolling your own is the open source tool Sonar (see Resources).

SONAR quarantines files that are already excluded.

To build a good salt delve gas storage reservoir, sonar measuring technique is introduced.

In the past, the Navy has denied that sonar noise from its warships could cause whales to beach.

The sonar reveals acres of cobblestone fields surrounding our craft.

Embed a light version of Sonar in the sonar-eclipse plugin to enable code review prior to SCM commit.

Three months later, the USS John McCain DDG 56 had her towed array sonar damaged by a Chinese submarine.

So, as in submarine films, all eyes are on the pressure gauge, all ears on the sonar.

This thesis studies the target identified by analyzed scattering signal which is from active sonar impinged under water.

There's probably more than one way to accomplish this, but you'll do it by mounting a sonar sensor on the robot's left side.

Deep-sea sonar altimeter is a depth sounder to equip deep-sea detection devices.

On the final dive of the trip, the scanning sonar detected a large object on the seafloor.

a high precision and automatic sonar pulse measuring technique is developed.

An American architect used sonar in 2004 to reveal man-made walls a mile deep in the Mediterranean between Cyprus and Syria.

Anyway, one morning I was very sleepy and my sonar systems were not working very well and I swam right into the scientists equipment.

It's also possible that Navy sonar tests, which may have caused mass beachings in the Bahamas, are to blame.

I think the rare you a lifetime to you, make sonar, gentle and poured out I love life!

The mathematical model for biomass estimation in deep water net cages is constructed based on sonar signal processing.

Next, I'll show two illustrations of technical debt: the first generated by hand and the second using a tool called Sonar.

In the blue-lit sonar room near the bow, Chief Sonarman Mike Morrison relayed the order to the operator.

An apparatus, as one in a submarine, using sonar.

They can sometimes be spied by coast guard patrols and their sound can be picked up by Navy submarines equipped with sonar.

The compression of mass underwater image data is a subject that must be solved with the development of image sonar.

This sonar can scan thousands of square kilometres of the shallow-shelf seas at one time and see schools of fish moving within them.

Better have those sonar-equipped destroyers close by.

The towed array sonar is used extensively in modern antisubmarine, ocean geologic and resources surveying techniques.

The device can be used, for example, in electromechanical transducers of sonar antennas.

Changes in the environment and the increasing use of sonar equipment on board ships has affected the toothed whales very badly.

The principles are similar to sonar used by boats and submarines.

It's here today -- with night vision, sonar bumpers, video games.

The information they have is based on the sonar readings and the dredging they have done.

The towed sonar system is used extensively in modern antisubmarine , ocean geologic and resources surveying.

'Orcas had millions of years to optimise their sonar and it shows, ' said researcher Onur Kilic.

UEF T3 Sonar Platform's rate of fire decreased and damage increased.

Not to the Spring Festival, the sonar gave you worship a early!

We sat listening to the chat-chat-chat of the sonar.

Further, they recalled the sonar systems they saw at war.

Thus research has been going on for some time in the area of low frequency active (LFA) towed array sonar.

Firstly, the prediction model was induced according to the equation of sonar.

People copied the feature of bat's sonar system onto radar.

Sonar would send the invitations .

At the same time the laser range finder, sonar, radar, GPS and other advanced sensor development in the mobile robot is also widely used.

However, it can only be located by sonar-equipped ships.

exampt the Navy from environmental laws banning sonar use .

Today's vessels can find their prey using satellites and sonar, which were not available 50 years ago.

The thermocline is important to the sonar detection.

Synthetic Aperture Sonar is a kind of imaging sonar with high resolution.

VSS? Variable SONAR System?

Sub collides with US destroyer's sonar.

A realtime navigation method for mobile robot based on sonar data is presented.

The optical mosaics each consist of 1, 500 high-resolution images rectified using sonar data.

Anti-sub warfare is based on sonar and acoustic detection of underwater craft.

We picked up two submarines on sonar .

Has anyone looked into nano-sonar?

on the US Navy's use of sonar during training exercises in the Pacific Ocean.

And what we demand most now is developing the advanced high resolution imaging sonar in the world.

A bat does not have good eye sight and flies by sonar.

Industry and Technology Patents Profiles - Communications: Radar and Sonar Systems.

"No ambush" nuclear submarine sonar and radar are also very sensitive, you can find 5, 000 km outside the vessel.

The digitization of analog sonar can not be realized without data collecting system.

The example in Listing 2 demonstrates the use of sonar and how to detect a hit (an object detected).

T1 and T2 Sonar now have a minimum build distance from shore.

The outlying sonar picket. was to detect , localize, and engage any submarine trying to close the convoy(Tom Clancy)

So precise is this sonar view of the world that bats can distinguish by size, shape and texture something as small as a mosquito.

An Algorithm Model and Its Realization for Multiple Mobile Target Tracking of a Digital Sonar System

Have you ever taken this test(sonar examination) before? How long has it been since last time? Were they ok?

An estimate of the gas transfer rate from oceanic bubbles derived from multibeam sonar observations of a ship wake

The emergence of the sonar makes the ships warship boat have the bright eye, but it is an inspiration that acquires from the dolphin body;

Study of the Structure Designment and Etching Micropattern of PZT Thick Film Ferroelectric Sonar Transducer

Evolutionary Programming Based Adaptive Gauss Neural Network with the Applications on Passive Sonar Target Classification

Study of the way of judging port and starboard ambiguity of towed linear array sonar

Image Segmentation Based upon Bounded Histogram and Its Application to Sonar Image Segmentation

Fuzzy Adaptive PID Control of the Attitude Stabilization System for a Sonar Array

Compound Deciding Network of New Structure Applied to Sonar Target Detection

A Real-time Obstacle Avoidance Method for AUV Using a Multibeam Forward Looking Sonar

Simulation of Vertical Directivity of Hydrophone Triplets Towed Line Sonar by the Optimal Array Processing

Develop the submarine sonar of the more suitable for neritic work, resolve the target in the neritic water to identify a problem especially;

Numerical computation of the motion of an underwater towed sonar array system

Calculation of Vibration Level Difference of Vibration Isolation Modules in a Towed Array Sonar

Conservationists say the largest generation of military sonar being used by Nato threatens the North Sea's whales and bottlenose dolphins

A Recognizing Method Based on Fuzzy Clustering on the Sonar Image of a Small Target on the Sea Bed

Research on Technique of Passive Sonar Target Recognition Based Modulation Line Spectrum Feature Extraction

Registration of interferometric synthetic aperture sonar complex images

Wide-band synthetic aperture sonar data processing and image reconstruction with back projection algorithm

Modeling and Simulation the Efficiency of the Dipping Sonar on the Antisubmarine Helicopter

Design of an extensible universal sonar signal processing system in parallel

Analysis for the key technique in ultrashort baseline sonar localization underwater

Development and trials of interferometric synthetic aperture sonar prototype

Many unexplained deaths of marine mammals could be caused by soundwaves from underwater military sonar equipment, zoologists believe

Hardware design and realization of automatic testing platform for seaborne digital sonar equipment

Elementary Introduction to Synthetic Aperture Sonar and Interferometric Synthetic Aperture Sonar

An Application of the Variable Window in Dimension and Compound Window in the Sonar Image Registration

Bottom side-scan sonar with a parametric profilograph;

Synthetic aperture sonar imaging and its developments

Simulation of Self- Noise and Ambient- Noise of Torpedo SONAR and Its Application

Comprehensive Utilization of Side Scan Sonar and Multi-beam Sounding System in Oceanographic Research

Sea-ice draft from submarine-based sonar: Establishing a consistent record from analog and digitally recorded data

On Improving Joint Estimation of Doppler Frequency and Multipath Time Delay of Overlapping Echoes for LFM Pulse Sonar

Innovations for sonar: new technology and designs for underwater acoustic transducers

An Study of Ambiguity of Passive TDOA Location of Multiple Sonar Array

Study of Non-solution of Passive TDOA Location of Multiple Sonar Array

satellite - doppler sonar integrated navigation system

Research on Searching Effectiveness Model of Dipping Sonar in Checking Anti-Submarine of Helicopter

Maneuver Principles for Submarine Equipped with Distant Early Warning Sonar at Finding Targets

A Real Time Technique for Measuring Parameters of Sonar Pulse

Simulation Researches on Synthetic Environment for Torpedo Warning Sonar

Digital sonar simulation on a general-purpose signal processing platform

Problems with Displacement, Transfiguration and Noise in Side Scan Sonar System Graphing

A chirp scaling algorithm for high-resolution spotlight synthetic aperture sonar imaging

Stabilization and Control of a Mine-hunting Sonar Array

Long Distance Source Localization with Passive Synthetic Aperture Sonar

Using cameras and sonar to assess the state of the river,

Study on the Application of Adaptive Signal Decomposition to Active Sonar Signal Processing

Noise reduction for interferometric phase images in synthetic aperture sonar

Sea ice thickness in the southwestern Sea of Okhotsk revealed by a moored ice-profiling sonar

Application of Side-Scan Sonar to Submarine Survey and Vessel Dynamic Positioning Technique

Measurement and observability of the target motion analysis for sonar

Parallel Signal Processing Technique for High-Resolution Imaging Sonar

Sonar Image Recognition by Wavelet Decomposition and Fractal Dimension

Submarine sonar self-noise forecast base on BP neural network and L-M Bayesian Regularization algorithm

Numerical simulation research on acoustic radiation of sonar hull equipment

Analysis and Compensation Research of Synthetic Aperture Sonar Motion Error

Influence of acoustical baffle parameters of spheroidal sonar dome on bow on afterbody sound field

Variation about vibration specialties of the sonar dome can be caused by fixing manner

Velocity measurement with correlation sonar and sea test verification

Detection Probability of Dipping Sonar Working in a Passive Mode

Data Acquisition for Long-Distance and Optimal Implementation of Beam-Forming in Sonar System

Research and Realization of the Application of the MIC in Shipboard Sonar Device

Sound Reflection and Sound Shadow Simulation Technology of High Frequency Sonar

Study on Double-threshold Tracks Correlation Algorithm for Active Sonar to Passive Sonar

A Synthetic Aperture Sonar Imaging Algorithm Using Frequency Scaling

Research on terminal trajectory of torpedo attack --torpedo with side-looking sonar

Twice Demodulation Algorithm of Sonar Array Signal Acquisition

Accurately locate target points using programmable sonar array

On alias target problem in coherent addition algorithm of synthetic aperture sonar

Research and Simulation of Strap-Down Mode Sonar Array Attitude Compensation Model

Experimentation and investigation of chirp sonar for dam inspection

A quantitative analysis of the effect of underwater acoustical environment on the sonar range

Simulation Research of Sling Sonar's Antisubmarine Efficiency

The Simulation Research on Forecasting the Detection Range of Active Sonar

Principle and Application of Land Sonar Method for Detection of Underground Karst