Naval Postgraduate School
Bandwidth optimization of underwater acoustic communications systems
01Mar_Houdeshell_Redacted.pdf (1.594Mb)Abstract
Current underwater acoustic communication systems operate in the frequency band of 1 - 10 kHz and utilize various forms of signal processing to improve data rates. In this work, the influence of the environment on long-range propagation of acoustic signals will be examined over the band of 1-5 kHz. The transmission loss (Th) as a function of range over the bandwidth will be one measure to determine the optimal operating character of the communications channel. Additionally, estimates of signal variance over the bandwidth as a function of range will be computed. The variance will be generated from source platform motion and interface roughness. Particular attention will be paid to the 2 - 4 kHz band of certain operating systems for long-range transmission
Description
Approved for public release; distribution is unlimited.
Collections
Related items
Showing items related by title, author, creator and subject.
-
Adaptive node capability metric to assess the value of networking in a general command and control wireless communication topology
(Monterey, California. Naval Postgraduate School, 2011-09);In order to quantify any node's capacity to support optimal information flow within a distributed command and control network, a novel node capability value calculation is developed from first principles. The expression ... -
Subband channelized radar detection and bandwidth estimation for FPGA implementation
(2000);The theory of optimum radar detection is well known and is generally implemented in expensive ASICs or supercomputers. However, today's state-of-the-art FPGAs are capable of performing relatively complex algorithms and ... -
Cooperative control of distributed autonomous systems with applications to wireless sensor networks
(Monterey, California. Naval Postgraduate School, 2009-06);This thesis extends previously developed self-tuning adaptive control algorithms to be applied to a scenario where multiple vehicles autonomously form a communication chain which maximizes the bandwidth of a wireless sensor ...
