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  2. Chirp - Wikipedia

    en.wikipedia.org/wiki/Chirp

    A chirp is a signal in which the frequency increases (up-chirp) or decreases (down-chirp) with time. In some sources, the term chirp is used interchangeably with sweep signal . [ 1 ] It is commonly applied to sonar , radar , and laser systems, and to other applications, such as in spread-spectrum communications (see chirp spread spectrum ).

  3. Garmin - Wikipedia

    en.wikipedia.org/wiki/Garmin

    The new Panoptix Livescope provided both scanning or imaging sonar as well as real-time, live sonar. [37] In April 2018, Garmin launched Connect IQ 3.0 along with new apps—MySwim Pro, Yelp, Trailforks and iHeartRadio. [43] In May 2018, Garmin partnered with the University of Kansas Medical Center to tackle sleep apnea and atrial fibrillation ...

  4. Sonar - Wikipedia

    en.wikipedia.org/wiki/Sonar

    Modern versions of the net sounder, using multiple element transducers, function more like a sonar than an echo sounder and show slices of the area in front of the net and not merely the vertical view that the initial net sounders used. The sonar is an echo-sounder with a directional capability that can show fish or other objects around the vessel.

  5. Sonar signal processing - Wikipedia

    en.wikipedia.org/wiki/Sonar_signal_processing

    Sonar systems are generally used underwater for range finding and detection. Active sonar emits an acoustic signal, or pulse of sound, into the water. The sound bounces off the target object and returns an echo to the sonar transducer. Unlike active sonar, passive sonar does not emit its own signal, which is an advantage for military vessels.

  6. He's Goffstown's sonar search expert - AOL

    www.aol.com/hes-goffstowns-sonar-search-expert...

    Jun. 21—The images captured from the lake bottom were surprisingly clear: a piece of aircraft fuselage, painted with black and red stripes, the plane's instrument panel and engines. A mystery ...

  7. Tonpilz - Wikipedia

    en.wikipedia.org/wiki/Tonpilz

    The term tonpilz or "acoustic mushroom" may refer to a certain type of underwater electro-acoustic transducer. By sandwiching active (i.e. piezoelectric or magnetostrictive) materials between a light, stiff radiating head mass and a heavy tail mass, the transducer can effectively operate as either a projector (source) or a hydrophone (underwater acoustic receiver).

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