Based on the first airbome underwater targets detection test in China and Monte Carlo simulation

me key factors to the airberne oceanic lidar system

which include effective attenuation coefficient

atmosphere

speed of wind

turbidity layer

sloping of the undempter target

are studied. Some new approximation estimation formulation and curves which are suitabIe for engineering design are firstly derived. The abnormal phenomena in the test are explained. The problems needed to pay nrore attention to are also put forward.