Title :
Frequency hopping underwater data communication system´s synchronization processing
Author :
Feng Tong ; Xiaomei, Xu ; Tianzeng, Xu
Author_Institution :
Dept. of Radio Eng., Southeast Univ., Nanjing, China
fDate :
29 June-1 July 2002
Abstract :
Because of the hostile ocean transmission conditions, underwater acoustic communication is one of the most difficulty communication technologies. Frequency-hopping underwater acoustic communication systems are drawing more and more attention for their good performance under serious noise and multipath interference conditions. Synchronization signal processing is a key factor of FH underwater acoustic communication systems. In the FH shallow underwater acoustic data communication system, employing an adaptive line-spectrum enhancing (ALE) method, frequency diversity, pulse width judgment and frame synchronization signal correlation processing to detect the synchronization signal under the condition of low SNR and heavy amplitude fluctuation, satisfactory ocean experimental results are obtained.
Keywords :
correlation methods; data communication; frequency hop communication; signal processing; synchronisation; underwater acoustic communication; adaptive line-spectrum enhancing method; frame synchronization; frequency diversity; frequency-hopping communication; multipath interference; pulse width judgment; signal correlation; synchronization signal processing; underwater acoustic communication; underwater data communication; Acoustic noise; Communications technology; Data communication; Frequency synchronization; Interference; Oceans; Signal processing; Spread spectrum communication; Underwater acoustics; Underwater communication;
Conference_Titel :
Communications, Circuits and Systems and West Sino Expositions, IEEE 2002 International Conference on
Print_ISBN :
0-7803-7547-5
DOI :
10.1109/ICCCAS.2002.1180620
