Implementation of Adaptive Filter Algorithm for Underwater Acoustic System
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چکیده
This paper describes development of adaptive filter algorithm for an Underwater Acoustic Telemetry (UWAT) system for communication between the off shore underwater device (UD) and on-shore communication system. In this system, FSK modulation and de-modulation techniques are used with centre frequency of 38 KHz with baud rate of 300Hz. Adaptive filter algorithm has been developed to compensate the distortion introduced due to multipath in under water communication. It has been shown experimentally that received signal has been perfectly demodulated after compensating it by adaptive filter algorithm. This demodulated signal is useful for identifying the commands correctly from the transmitter. The applications of this system can be extended to command and control the activities of underwater data acquisition devices. Index Term—Acoustic telemetry, remote control, modem, adaptive filter , Modulation and Demodulation.
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تاریخ انتشار 2009