Considering the necessity of windshear study, a model and a simulation method of echo signal of airborne forward-looking windshear radar was proposed.

The horizontal and vertical momentum loss caused by the shock of heavy rain in low-level wind shear of thunderstorms on the airframe and wing are analyzed,the water film thickness on the airframe and wings estimated,and the flight resistance resulted from raindrops-striking caused by the roughness of airplane when the heavy rain shocks the airplane is discussed.

The effect of linewidth of the transmitted laser on measurement sensitivity and error of double-edge noncoherent wind lidar is presented.