Title :
High data rate acoustic telemetry for moving ROVs in a fading multipath shallow water environment
Author :
Catipovic, Josko ; Freitag, Lee
Author_Institution :
Woods Hole Oceanogr. Instn., MA, USA
Abstract :
A compact telemetry system for digital data telemetry at rates up to 10 kb/s over 1 to 10 km is presented. The system is designed for worst-case ocean acoustic channel conditions, and operates in the presence of source/receiver motion, fading, and multiple transmission paths. In addition, the system incorporates spatial diversity by utilizing multiple hydrophones and data processing subsystems. This allows much more reliable operation under realistic circumstances where noise events and transducer masking are unavoidable. The result is a system specifically geared toward use at sea with a remotely operated vehicle (ROV). Preliminary dockside test results are presented to demonstrate the effectiveness of this multichannel system
Keywords :
acoustic applications; computerised signal processing; marine systems; mobile robots; telemetering systems; transport computer control; underwater sound; 1 to 10 km; 10 kbit/s; ROV; ROVs; data processing subsystems; digital data telemetry; fading multipath shallow water environment; high data rate acoustic telemetry; hydrophones; multichannel system; multiple transmission paths; remotely operated vehicle; source/receiver motion; spatial diversity; worst-case ocean acoustic channel conditions; Acoustic testing; Fading; Frequency synchronization; Hardware; Oceans; Remotely operated vehicles; Robustness; System testing; Telemetry; Underwater vehicles;
Conference_Titel :
Autonomous Underwater Vehicle Technology, 1990. AUV '90., Proceedings of the (1990) Symposium on
Conference_Location :
Washington, DC
DOI :
10.1109/AUV.1990.110471
