Measured channel impulse responses for a mobile source in the northeastern sea off Taiwan
Journal
8th ACM International Conference on Underwater Networks and Systems
Date Issued
2013
Author(s)
Chiu, L.
Abstract
While our understanding of underwater acoustic communications has improved, communications involving mobile assets, e.g., gliders and AUVs, remains quite challenging. In September 2011, the MArine Cable Hosted Observatory (MACHO) was launched in the northeastern sea off Taiwan for surveillance of submarine earthquakes, tsunamis, and the ocean environment. This paper presents preliminary results of the measured underwater acoustic channel impulse response for a mid-frequency band of 4-6kHz in the northeastern sea off Taiwan by using a mobile source with the MACHO system. The data transmitted by a moving source along a track across a canyon is analyzed. The results show that the across-canyon track presents low SNR at certain locations as the mobile source was moving across the canyon. At these low SNR locations, communication between the mobile sources and the receiving stations is broken.
Subjects
Channel impulse response; Mobile source; Synthetic aperture communication
SDGs
Other Subjects
Channel impulse response; Marine cables; Measured channel; Mobile sources; Ocean environment; Receiving stations; Underwater acoustic channels; Underwater acoustic communications; Broadband networks; Communication; Frequency bands; Mobile power plants; Mobile radio systems; Underwater acoustics; Signal to noise ratio
Type
conference paper