Ship Speed Estimation using Wireless Sensor Networks: Three and Five Sensors Formulation

Widely used methods for ship detection are using radar or satellite which is very expensive. Besides the high cost, the satellite image is easy affected by the cloud. Widely used methods for ship detection are using radar or satellites which are very expensive. Besides the high cost, the satellite image is easily affected by the cloud. [...]it is difficult to detect small boats or ships on the sea with marine radar due to the noise or clutters generated by the uneven sea surface. [...]the use of Wireless Sensor Networks (WSN) can reduce the implementation costs compared with using radar or satellite. [...]motivation of using five sensor is to improve detection accuracy. When the accelerometer is used in an ocean environment, the buoy and the accelerometer undergo a generally oscillatory, sinusoidal-like vertical acceleration due to wave action. Because the sensor changes direction randomly in the ocean, we can only consider the z-accelerometer readings which last for a period of 250 seconds.