Ethernet Telemetry for Towed Arrays

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Ethernet Telemetry for Towed Arrays

Show simple item record Jagathy Raj, V P Anantha Narayanan, S Subash Subramoniam, S Sham Kumar, S 2014-08-06T04:51:21Z 2014-08-06T04:51:21Z 2009-11-18
dc.description Ocean Electronics (SYMPOL), 2009 International Symposium on en_US
dc.description.abstract The towed array electronics is essentially a multichannel real time data acquisition system. The major challenges involved in it are the simultaneous acquisition of data from multiple channels, telemetry of the data over tow cable (several kilometres in some systems) and synchronization with the onboard receiver for accurate reconstruction. A serial protocol is best suited to transmit the data to onboard electronics since number of wires inside the tow cable is limited. The best transmission medium for data over large distances is the optical fibre. In this a two step approach towards the realization of a reliable telemetry scheme for the sensor data using standard protocols is described. The two schemes are discussed in this paper. The first scheme is for conversion of parallel, time-multiplexed multi-sensor data to Ethernet. Existing towed arrays can be upgraded to ethernet using this scheme. Here the last lap of the transmission is by Ethernet over Fibre. For the next generation of towed arrays it is required to digitize and convert the data to ethernet close to the sensor. This is the second scheme. At the heart of this design is the Analog-to-Ethernet node. In addition to a more reliable interface, this helps in easier fault detection and firmware updates in the field for the towed arrays. The design challenges and considerations for incorporating a network of embedded devices within the array are highlighted en_US
dc.description.sponsorship Cochin University of Science and Technology en_US
dc.language.iso en en_US
dc.publisher IEEE en_US
dc.subject Ethernet en_US
dc.subject Towed Array en_US
dc.subject Embedded network en_US
dc.title Ethernet Telemetry for Towed Arrays en_US
dc.type Article en_US

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