ABSTRACT
In the last two decades, underwater acoustic communications has
experienced significant progress. The traditional approach for ocean-
bottom or ocean-column monitoring is to deploy oceanographic sensors,
record the data, and recover the instruments. But this approach failed
in real-time monitoring. The ideal solution for real-time monitoring of
selected ocean areas for long periods of time is to connect various
instruments through wireless links within a network structure. Basic
underwater acous ....etc

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ISOLOOP MAGNETIC COUPLERS'.Couplers, also known as isolators because they electrically isolate as well as transmit data, are widely used in industrial and factory networks, instruments, and telecommunications. Every one knows the problems with optocouplers. They take up a lot of space, are slow, optocouplers age and their temperature range is quite limited. For years, optical couplers were the only option. Over the years, most of the components used to build instrumentation circuits have become ever smaller. Optocoupler t ....etc

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Underwater acoustic networks are generally formed by acoustically connected ocean bottom sensor nodes, autonomous underwater vehicles (AUVs), and surface stations that serve as gateways and provide radio communication links to on-shore stations. The QoS of such networks is limited by the low bandwidth of acoustic transmission channels, high latency resulting from the slow propagation of sound, and elevated noise levels in some environments. The long-term goal in the design of underwater acoustic networks is to provide for a se ....etc

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I need matlab coding for microstrip coupler.It is very urgent can pleas send this coding on below mentioned mail id [email protected] ....etc

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ACOUSTIC COUPLERS

The term acoustic means sound. This is a device used in telecommunication field for coupling electrical signals by acoustical means. Its main working is related to our telephone. Acoustic coupler is a terminal and interface device to page link data terminals and radio sets with telephone. Acoustic couplers are used to transmit data over telephone lines using modems. This is a device onto which telephone handset is placed to connect computer to the network, a modem will be also there. Modems that do not use acoustic coupler ....etc

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Composites of shape memory alloys (SMA) with a matrix have been widely studied to suppress the propagation of damage. In these studies, the SMA is used as an actuator. A multi-functional SMA as both sensor and actuator is suitable for constructing intelligent material, such as a material with a sensing and suppressing function. The damage of materials is related to the amount of strain. We studied the use of SMA wire parts as sensors to measure the amount of strain for damage estimation. The acoustic emission (AE) signals induced by phase trans ....etc

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ACOUSTIC NOISE CANCELLATION USING ADAPTIVE FILTERING


Abstract
All the physical systems when they operate produce physical noise, which is a mixing of an infinitive number of sinusoidal harmonics with different frequencies. So, the initial signal information is corrupted with this noise. This complex signal, may be very noisy, so much that the human ear or other system which may follow it, cannot receive correct the initial signal.

2. Literature Survey
Some of the earlie ....etc

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Hey,plz do send me the applications,advantages and disadvantages and few interesting slides on Audio finger printing @ Acoustic finger printing.. ....etc

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Hi this is sunita here. I wanted detailed information on the working of ISO loop magnetic couplers, their advantages over optocouplers and their future scope? ....etc

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To get more information about the topic isoloop magnetic coupler. please refer the page link below
http://seminarsprojects.net/Thread-isoloop-magnetic-coupler ....etc

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