Title :
Acoustic communication in very shallow water: results from the 1999 AUV Fest
Author :
Freitag, Lee ; Grund, Matt ; Singh, Sandipa ; Johnson, Mark
Author_Institution :
Woods Hole Oceanogr. Instn., MA, USA
Abstract :
The 1999 AUVFest was held near Gulfport, Mississippi in a shallow-water area with depths between 3 and 8 meters. The acoustic channel was characterized by multipath spanning up to 20 msec and high noise levels from snapping shrimp. Acoustic communication testing was performed with the REMUS AUV transmitting both known test data and realtime status information. In addition, a series of ship-to-ship tests were performed in order to characterize stationary performance at ranges of one to five kilometers. Data rates of 60-5000 bits per second were transmitted and, despite the very shallow water conditions, the communication link was reliable at ranges up to 5 km at all data rates
Keywords :
oceanographic regions; oceanography; underwater acoustic communication; underwater acoustic propagation; underwater acoustic telemetry; 3 to 8 m; AUV Fest; AUVFest; Gulf of Mexico; Gulfport; Mississippi; REMUS AUV; USA; acoustic channel; acoustic communications; acoustic telemetry; coast; communication link; high noise levels; multipath; ocean; ship-to-ship; snapping shrimp; stationary performance; underwater sound; very shallow water; Acoustic testing; Block codes; Decision feedback equalizers; Multiaccess communication; Performance evaluation; Phase locked loops; Throughput; Underwater acoustics; Underwater communication; Underwater vehicles;
Conference_Titel :
OCEANS 2000 MTS/IEEE Conference and Exhibition
Conference_Location :
Providence, RI
Print_ISBN :
0-7803-6551-8
DOI :
10.1109/OCEANS.2000.882253
