Underwater communication project at NJIT

Introduction

Underwater communication means the transfer of data from one point to another. There are many ways for performing such communication which involves pressure channels and velocity channels. But in this article velocity channels are discussed.

Underwater communication system

This type of communication system consists of Transmitter, Receiver and Channel. Here Velocity channels are considered and the Receiver to sense it is Vector Sensor.
The traditional way uses pressure channels and hydrophones.

Why Vector sensors?

Historically, ocean acoustic signals have been measured using underwater microphones. Microphones measure the pressure field is typically unidirectional. Recent development in piezoelectric materials has led to the use of vector sensor. Vector sensors measure both pressure and practical velocity both. Also they are smaller in size than hydrophones. And hence the Vector sensor is a better choice than microphones.

Software tools
The simulation of such chnnels can be carried out using the softwares as follows:

1. MATLAB (ACT TOOL BOX) (source )

2. SIMULINK

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See Also

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