The paper presents the results of experimental researches of data transmission in water using Direct Sequence Spread Spectrum technique and the RAKE receiver. The signal with the QPSK modulation was spread by factor of 4, 8 or 16 chips. Researches were made to verify that spread spectrum technique can be used to underwater voice communications. Static studies were conducted in a small laboratory water tank and in a harbour. Propagation properties were evaluated based on the estimated impulse response of the hydroacoustic channel.
Data transmission in the hydroacoustic channel – experimental researches
Journal of Marine Engineering & Technology ; 16 , 4 ; 409-415
2017-02-02
7 pages
Article (Journal)
Electronic Resource
English
Tema Archive | 1996
|Tema Archive | 1975
|HYDROACOUSTIC MONITORING NETWORK
British Library Online Contents | 2001
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