Real-time inversion algorithm of multi-wavelength atmospheric transmissivity for aerial target infrared radiation

The correlativity between atmospheric transmissivity and laser wavelength was gained by using Mie scattering theory and dominant factors for attenuation of aerial target infrared radiation propagating in atmosphere.With a laboratory apparatus designed by ourselves and laser multipoint fault measuring techniques, we measured atmospheric transmissivity at 1 060 nm wavelength, then inversely calculated transmissivities at 532, 860 and 1 570 nm in real time using the correlativity between wavelength and atmospheric transmissivity. The results indicate that it is feasible to use the correlativity to inverse infrared atmospheric propagation and establish the infrared radiation real time atmospheric propagation correcting model and system platform of aerial target．