Study On Back-scattering Light Of Bubbles And Tubulence In Ship Wake

Laser pulse backscatter used for backward detection of wakes is a new research direction of underwater weapon guidance. The study focus is the influence of bubbles and turbulence in ship wake on the backscattered laser pulse and how to develop a wake backward detection method.In this paper, an optical detection method to detect wakes is proposed and a detection system is build for experiment. The system is used to study the influence on the backscattered laser pulse of bubbles and turbulence experimentally in a pool with10m length.The experimental result shows that bubbles and turbulence can make obvious influence on backscattered laser pulse signal characteristics in time domain, so this method is feasible and can be used to distinguish the bubbles and turbulence in ship wake. This work will be a basis of a practical application in the detection system of the underwater weapon guidance.