Considering quasi-stationary principle

analysis and evaluation about helicopter wing components on the radar scattering characteristics were investigated based on electromagnetic high-frequency method. Firstly

in order to obtain effects about the radar scattering characteristics of the helicopter wing components

the RCS(radar cross section) changes

the strong scattering regions

and the time-frequency domain of echo signal were analyzed considering the dynamic features of rotor high-speed rotation; as a result

the scattering mechanisms of wing components were revealed. Then

according to the strong scattering distributions and multiple response characteristics of the helicopter

the radar detection range of the helicopter with different wing components was compared

four levels warning mechanism and angle domains about azimuthal

pitch and roll attitudes were proposed

and the corresponding strategy against the radar detection was given. It shows that the radar exposure distance of helicopter fuselage with difference wing components such as the horizontal stabilator

wingstub and their combinations

increase by 11.54%

14.88% and 18.06%

respectively

and comprehensive radar stealth performances of the helicopter are declined.