The development of an underwater telephone for digital communication purposes

• Autorzy: Schmidt J.
• Języki publikacji: EN

Abstrakty

EN

The underwater telephone HTL-10 has been designed to provide voice and data communication between helicopter and submarines using acoustic waves. It works in a halfduplex mode and uses analogue power-efficient modulation in the form of a single side-band, suppressed carrier, in a wide range of frequencies. It generates the transmitted signal, and processes the received signals. It is implemented with the use of digital signal processing techniques. Although it was designed several years ago, the flexible structure of the underwater telephone ensures a convenient platform for the implementation of various types of communication, as well as testing. This ability is due to the particular characteristics of the digital signal-processing module, which was designed by the author, both in hardware and software. The main elements of the module consist of the fixed-point signal processor, and the floating-point high performance digital signal processor. The article demonstrates the ability to adapt HTL-10 to implement digital communication in shallow waters, with a robust low data rate spread spectrum approach.

Słowa kluczowe

EN

digital signal processor; spread spectrum; DDC; DUC; STANAG 1074/1475

• Wydawca: Polskie Towarzystwo Akustyczne. Oddział Gdański
• Czasopismo: Hydroacoustics
• Rocznik: 2016
• Tom: Vol. 19
• Strony: 341--352
• Opis fizyczny: Bibliogr. 8 poz., rys.

Twórcy

autor

Schmidt J.

• Gdansk University of Technology Faculty of Electronics, Telecommunications and Informatics Narutowicza 11/12, 80-233 Gdańsk, Poland

Bibliografia

• [1] Reichspatentamt, Patentschrift Nr 668943 Klasse 74d Gruppe 609, Wassertelefonieeinrichtung, Electroacustic G.m.b.H. in Kiel, 1935.
• [2] R.A. Poisel, Electronic Warfare Receivers and Receiving Systems, Artech House, 2014.
• [3] J. Schmidt, K. Zachariasz, R. Salamon, Underwater communication system for shallow water using modified MFSK modulation, Hydroacoustics, Vol. 8, 179-184, 2005.
• [4] K. Zachariasz, J. Schmidt, R. Salamon, Code signals transmission using MFSK modulation in shallow waters, Hydroacoustics, Vol.4, 261-264, 2001.
• [5] J. Schmidt, Reliable underwater communication system for shallow coastal waters, Hydroacoustics, Vol.17, 171-178, 2014.
• [6] J. Potter, J. Alves, D. Green, G. Zappa, I. Nissen, K. McCoy , The JANUS underwater communications standard, Underwater Communications and Networking, 2014.
• [7] J. Marszal, Experimental study of silent sonar, Archives of Acoustics, Vol. 39, No. 1, pp. 103–115, 2014.
• [8] J.Yang, T.K. Sarkar, Doppler-invariant property of hyperbolic frequency modulated waveform, Microwave and optical technology letters, 48, 8, 1174– 1179, 2006.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)