A new data acquisition and processing system for profiling sonar

Abstract

A multi-beam chirp sonar based on IP connections and DSP processing nodes was proposed and designed to provide an expandable system with high-speed processing and mass-storage of real-time signals for multi-beam profiling sonar. The system was designed for seabed petroleum pipeline detection and orientation, and can receive echo signals and process the data in real time, refreshing the display 10 times per second. Every node of the chirp sonar connects with data processing nodes through TCP/IP. Merely by adding nodes, the system’s processing ability can be increased proportionately without changing the software. System debugging and experimental testing proved the system to be practical and stable. This design provides a new method for high speed active sonar.

Keywords

profiling sonar / IP network / data acquisition / parallel processing / DSP

References

[1] Li Qihu. The design theory of digital sonar[M]. 2002, Hefei: Anhui Education Press, 154-172

[2] Abraham D. A., Willett P. K. Active sonar detection in shallow water, using the page test[J]. IEEE Journal of Oceanic Engineering, 2002, 27(1): 35-46

[3] Wang Runtian. Progress in detecting the geological formations and sediment properties by sound[J]. Technical Acoustics, 2002, 21(1): 96-98

[4] Shen Lansun. High-speed data acquisition system principles and applications[M]. 1995, Beijing: Posts & Telecom Press, 148-151

[5] Li Jiabiao. The methods & principle of multi-beam exploration technology[M]. 1999, Beijing: China Ocean Press, 67-69

[6] Xu J., Li Xuegan. Parallel processing technology[M]. 1999, Xi’an: Xidian University Press, 15-23

[7] Craig H. TCP/IP Network Administrator[M]. 1997, Sebastopol, United States: O’Reilly & Associates Inc, 10-15