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  2. 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.

  3. 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 ).

  4. Garmin - Wikipedia

    en.wikipedia.org/wiki/Garmin

    Garmin Tech Center (台灣國際航電科技大樓) is the head office of Garmin (Asia) Corporation and located in the Xizhi District of New Taipei City, Taiwan. In 2010, Garmin opened a facility in Cary, North Carolina as part of the Research Triangle Park. [82] Garmin operates in several other countries besides the UK, USA, and Taiwan. [83]

  5. Underwater acoustic communication - Wikipedia

    en.wikipedia.org/wiki/Underwater_acoustic...

    Underwater vector sensor applications have been focused on sonar and target detection. [11] They have also been proposed to be used as underwater multi‐channel communication receivers and equalizers. [13] Other researchers have used arrays of scalar sensors as multi‐channel equalizers and receivers. [14] [15]

  6. Underwater acoustic positioning system - Wikipedia

    en.wikipedia.org/wiki/Underwater_acoustic...

    Accuracy depends on transducer spacing and mounting method. When a wider spacing is employed as when working from a large working barge or when operating from a dock or other fixed platform, the performance can be similar to LBL systems. When operating from a small boat where transducer spacing is tight, accuracy is reduced.

  7. 10 Old Tech Gadgets Worth a Pretty Penny Today

    www.aol.com/10-old-tech-gadgets-worth-140005518.html

    Hailing from Japan, these digital pets were all the craze in the ’90s. By enabling users to care for a virtual pet, the pocket-sized devices mimicked all the responsibilities of real pet ...

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