关键词: 海底电缆, 声学定位

Abstract: When conducting subsea cable seismic exploration, information of subsea geophone position is of vital importance to the quality of seismic signal acquisition. BPS underwater secondary positioning system is a set of precise equipment designed for getting accurate information of subsea geophone position. This system is mainly composed of GPS receiver, main controller, transponder, encoder and OBCPos positioning software. The basic work principle is that the object is bound with the acoustic transponder to precisely identify geophone position by means of the subsea acoustic positioning processing algorithm. As compared to the traditional first-wave positioning, this system not only provides more precise location of geophone but also remarkably improves operational rate and production efficiency and substantially improves the quality of seismic data. With good application results and economic performance achieved, this system has a broad prospect for application.

Key words: subsea cable; acoustic positioning; transponder