Applying an absorbing coating to the surface of an aircraft is a widely used target
stealth method. For high-speed motion vehicles, the temperature of the stealth coating profile is
non-uniform due to the "aerodynamic effect", which affects the millimeter wave radiation of the
target. In this paper, we study the calculation method of millimeter wave radiation of stealth
coating for sports aircraft. Firs
tly, the temperature variation model of the coating under different
boundary conditions was analyzed. Then, the coating brightness temperature under non-uniform
temperature distribution was simulated and calcul
ated, and the brightness temperature difference
of the coating with or without
temperature gradient was analyzed. Finally, the millimeter wave
radiation measurement experiment of the coat
ing verified the accuracy of the simulation
calculation, and the millimeter-wave radiation ch
aracteristics of the non-uniform temperature
stealth coating are obtained.
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