Study on frequency dividing method of weak AC/DC hybrid signal of ship´s electric field

As an important signal source for the development of new weapon in the world, the detection and analysis of ship´s electric field signal has become the focus of the current research. Ship´s electric field signal is a weak AC/DC hybrid signal contains low frequency electric field and static electric field. The article explains the problem “why the hybrid signal need frequency dividing”. And then put forward a frequency dividing method using coupling transformer and subtractor, which is been proved work well by experiments.