| Abstrakt: |
There are multiple sources for the signatures that emanate from ships, such as magnetic, acoustic, radar, pressure, electric, seismic and optical. Over the past few years, the international community's efforts have mainly centred on reducing magnetic signature with the aim of decreasing a ship's detectability by reducing the generated levels of the Earth's magnetic distortion in the sea. Nowadays, the need to act on the magnetic risk is becoming increasingly clear, both in the military and civilian fields, based on requirements for ship stealthiness, security of harbour, critical infrastructures and environmental protection. In order to determine the ship's vulnerability to magnetic detection, all sources generating permanent and induced magnetic fields must be considered. Understanding and controlling magnetic signatures on naval ships is one of the most important aspects for naval forces around the world. A great deal of consideration has been put in this field in many countries such as the USA, European nations including Germany, Netherlands, Sweden and Norway, as well as in our country, Malaysia. The aim of this paper is to provide a basis for understanding underwater ship magnetic signature. This paper deals with an overview of natural magnetism, ship magnetic signature sources, their magnetism characteristics, signature detection and current technology for reducing the resulting magnetic signature. [ABSTRACT FROM AUTHOR] |
