Sonar is a device that uses sound energy to locate objects; measure their distance, direction, and speed; and produce pictures of them. The word sonar comes from sound navigation and ranging. Sonar works well underwater, where sound travels quickly and efficiently over long distances and where radar does not work.
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Výklad snu dle zadání Vězení. Výklad snu: Vězení Vězení - pochybnosti. Arest - nejsi pánem svých rozhodnutí. Basa - udělej si pořádek ve svých věcech. Chládek - spoléhej hlavně sám na sebe
The Ultrasonic Rangefinder, pictured left, is used to detect objects at a distance, without the need for the robot to actually contact them. The Ultrasonic Rangefinder uses sound pulses to measure distance, in a similar way to how bats or submarines find their way around.
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1. Noise levels 2. Sound emissions of the vessel being tracked. The higher the noise level the more difficult it is to detect a sonar signal. Noise comes from ambient (ocean noises due to waves, other vessel traffic, biological noise, noise of your instruments, signal processing capabilities,
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