Abstract
Naval vessels emit electric fields, which propagate through seawater and therefore are susceptible of being detected by recently developed underwater electric field sensors. In order to quantify the underwater electric signature of the Naval vessels, a measurement facility is established on the west coast of India. The measured data is required to be analysed which could help in designing the Naval Stealth platforms. This paper aims to bring out the methodology to extract the target navigation parameters like tracking the motion of the target i.e., either it is approaching or receding the particular location and also identification of target/source location i.e., either it is on port or starboard side in relation to the sensor axis. The results of this study suggests that the approaching target gives more Extremely Low Frequency Electric (ELFE) signature than receding ones. The results of this study also suggest that the sign discernment of athwart and vertical field components is used to estimate port/starboard location of target with respect to sensors.
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