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You're talking about the uncertainty of the bearing.
It varies with the design of the sonar equipment.
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∙ 15y ago
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Do sonar produces ultrasound waves to map and locate objects underwater?
Active sonar ping is audible, so is not ultrasonic. Passive sonar just listens, but it takes time to determine objects bearing, speed & direction of travel. There is ultrasonic sonar for short range detection such as mines and frogman.
What is the meaning sonar?
sonar means '...of, or relating to sound'
Why is sonar an acronym?
SONAR=Sound Navigation And Ranging
What does the letters in sonar stand for?
SONAR = SOund Navigation And Ranging SONAR = Symantec Online Network for Advanced Response SONAR =Switch On No Activity Received SONAR = SOlar Near-surface Active-region Rendering Hope I helped.
When was the sonar invented by Lewis Nixon?
The SONAR was invented in 1906.
What is the technique used by submarines to locate their enemies?
They use sonar to find the enemy. Passively, they listen for the sounds of the other ships, which will give them a bearing to the target. Active sonar will ping the enemy and provide a range as well.
Do sonar produces ultrasound waves to map and locate objects underwater?
Active sonar ping is audible, so is not ultrasonic. Passive sonar just listens, but it takes time to determine objects bearing, speed & direction of travel. There is ultrasonic sonar for short range detection such as mines and frogman.
What will happen if you increase the frequency in the sonar?
You may be able to have smaller antennae for the same resolution. If you use the same size of antenna, then spatial resolution will increase, provided the equipment has been so designed.
How does a ship use sonar?
There are two types of SONAR (Sound Navigation and Ranging) used...active and passive. Passive SONAR is simply listening under water using hydrophones. With passive SONAR a vessel can determine the bearing (direction) of whatever is creating the noise right away. Using triangulation (multiple bearings at timed intervals) passive SONAR can now determine range, bearing, and speed. But this can be time consuming. Pro - stealth Con - time consuming Active SONAR requires emitting a noise underwater that is on multiple frequencies. Not just a single loud 'ping' like in the movies. As the sound reaches an object underwater the noise bounces back to the vessel that emitted the sounds. Sounds travel at given speeds, and using a calculation you can almost immediately determine range along with bearing. A second quick active SONAR burst and you now have speed. But, now everyone listening knows you are there as well. Pro - quick results Con - exposes yourself
Will Scan resolution have a direct bearing on print resolution?
No, only on the quality. If you have a picture that is in low quality, perhaps because you scanned it that way, printing in high resolution won't be able to improve the image quality.
Can a sonar machine identify the object showing up on the sonar?
Sonar (which stands for SOund NAvigation and Ranging) can be made to identify the object it pings on - if active sonar; if passive sonar, identify the object making the sound it picks up. The higher the frequency of the active sonar ping, the better the resolution - but the shorter the range. At higher resolutions, it is not hard for the sonar to identify the object it pings on. At lower frequencies, the range is greater but it is harder for the sonar to identify what is being pinged. Another benefit of active sonar is the range and direction of the target can be discerned. Passive sonar just listens to the ambient water. Identification of the sound source can be made if the frequencies of the target making the sound are known and identified in a database. One problem with passive sonar is that it is hard to know the range of the target making the sound, although the direction will be known. Water temperature and depth have a great effect on sonar, so this must be taken into account when calculating distance. Sonar is used in the Military, Geological Surveying, and the Medical field.
How did sonar effect the world war 1 outcome?
It didn't; Submarine Sonar wasn't developed until the '30's, and during WWII it saw limited use aboard submarines. Back then, it was essentially a bearing / speed indicator for a target, but not much more.
What function does a periscope do on a submarine?
Periscopes have several primary functions: 1. Visual verification & identification of current Sonar targets. 2. Navigational fixes by using visual references (near shore or by use of attached sextant for star fixes). 3. Aiding in target tracking/range calculation. 4. Bearing, Speed, Angle on the Bow and Range match with Sonar and Fire Control prior to weapon shot. 5. Visual detection of any targets not picked up by Sonar due to poor sound conditions. Due to the way sound propagates in the ocean, it is possible to perform a Sonar sweep and not have any close-aboard (collision range) targets on sonar. However, when coming to Periscope Depth, if there is a thermal layer blocking sonar and any targets, it is essential to get a quick ID, range and bearing to any close-aboard target that may have been undetected by sonar. This is why the periscope is so important when ascending to PD. The Con officer can then order the helmsman to steer clear or emergency dive to avoid any close-aboard contacts. Visual verification, bearing and range are matched against Sonar's target information for 3 reasons: 1. You don't want to shoot anything you're not supposed to. 2. Sound propagation and ocean properties can alter the actual received target bearing, and hence the estimated range. 3. Visual verification, bearing and range via periscope ensures the best target solution for the torpedo before shooting. Of course this only applies to surface targets, and not submerged submarines. In such cases, a sonar-only target solution is used and fed into the torpedo guidance system prior to shooting.
Which method of studying the ocean floors gives some degree of proximity but is efficient in terms of time as well?
sonar sonar sonar sonar SONAR
Which method of studying the ocean floor gives some degree of proximity but is efficient in terms of time as well?
sonar sonar sonar sonar SONAR
Which is more expensive a boat with sonar or a satellite with sonar?
sattelite with sonar
What do bats have sonar or radar?
Sonar
