Search results for: SONAR EQUIPMENT , NAVIGATION , MATHEMATICAL MODEL , ACOUSTIC WAVES , UNDERWATER VEHICLES , DOPPLER SHIFT - Bridge of Knowledge

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Search results for: SONAR EQUIPMENT , NAVIGATION , MATHEMATICAL MODEL , ACOUSTIC WAVES , UNDERWATER VEHICLES , DOPPLER SHIFT

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Search results for: SONAR EQUIPMENT , NAVIGATION , MATHEMATICAL MODEL , ACOUSTIC WAVES , UNDERWATER VEHICLES , DOPPLER SHIFT

  • Zespół badawczo-rozwojowy systemów hydroakustycznych

    * systemy hydroakustyczne (nawigacyjne, echolokacyjne i komunikacyjne) * przetworniki ultradźwiękowe i anteny hydroakustyczne * propagacja fal akustycznych w morzu i wodach śródlądowych * prowadzone są również prace badawcze w zakresie akustyki teoretycznej, przetwarzania sygnałów analogowych i cyfrowych i techniki ultradźwiękowej * Katedry ma bogate, wieloletnie doświadczenie w budowie systemów hydroakustycznych, poczynając od...

  • Zespół Systemów Geoinformatycznych

    Research Potential

    W katedrze prowadzone są badania naukowe w zakresie szeroko rozumianych Systemów Informacji Geograficznej (GIS). Tematyka badań obejmuje zastosowanie GIS w technologiach bezpieczeństwa, wizualizacje i analizy przestrzenne, systemy numerycznego prognozowania pogody, technologie nawigacji w ramach mobilnych systemów informacji przestrzennej, oraz zaawansowane techniki obrazowania satelitarnego. Katedra kontynuuje również badania...

  • Katedra Hydromechaniki i Hydroakustyki

    Zagadnienia związane z oddziaływaniem morza i zachowaniem się obiektów na morzu, zagadnienia bezpieczeństwa (niezatapialność), hydroakustyka.

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Search results for: SONAR EQUIPMENT , NAVIGATION , MATHEMATICAL MODEL , ACOUSTIC WAVES , UNDERWATER VEHICLES , DOPPLER SHIFT

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Search results for: SONAR EQUIPMENT , NAVIGATION , MATHEMATICAL MODEL , ACOUSTIC WAVES , UNDERWATER VEHICLES , DOPPLER SHIFT

  • Underwater Navigation Ssystem Based on Doppler Shift – Measurements and Error Estimations

    A new acoustic navigation system was developed to determine the position and speed of moving underwater objects such as divers and underwater vehicles. The path of an object and its speed were determined by the Doppler shifts of acoustic signals emitted by a transmitter placed on the object and received by four hydrophones installed at the periphery of the monitored body of water. The position and speed measurements were affected...

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  • UUV and AUV Vehicles as the autonomous systems for naval applications

    Publication

    - Year 2019

    There is a growing pressure to investigate how to design and build the unmanned underwater vehicles of different types which are devoted towards performing many tasks under the water surface according to the data missions. During the recent years the Department of Ship Design and Subsea Robotics, Faculty of Ocean Engineering and Ship Technology, Gdansk University of Technology designed and built a few types of unmanned underwater...

  • Underwater Navigation System Based on Doppler Shifts of a Continuous Wave

    Publication

    The paper describes a concept of an underwater navigation system designed to determine the location and speed of its ROVs or divers. Conducted by the Department of Marine Electronic Systems at the Gdansk University of Technology for several years, research has focused on navigation systems which determine positions on the basis of Doppler shifts of echo signals reflected from a moving object. This article presents a different version...

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  • Doppler effect in the CW FM sonar

    When sonars are used for military purposes they have to ensure unobtrusive operation, a feature that can be potentially secured by 'silent sonar' or continuous wave frequency modulation sonars (CW FM sonars). The article presents how these sonars operate and identifies the relations between their parameters. The Doppler effect and its impact on the CW FM sonar are studied to identify how it affects the sonar's parameters. The results...

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  • Underwater Acoustic Imaging of the Sea

    Publication

    Acoustic waves are a carrier of information mainly in environments where the use of other types of waves, for example electromagnetic waves, is limited. The term acoustical imaging is widely used in the ultrasonic engineering to imaging areas in which the acoustic waves propagate. In particular, ultrasound is widely used in the visualization of human organs - ultrasonography (Nowicki, 2010). Expanding the concept, acoustical imaging...

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