Visible light scattering characteristics of space target multi-station observations

The research of light scattering properties of space target has very important application value on the space penetration technology such as target detection, tracking and recognition. We associated the light irradiation with the target scattering intensity by utilizing the bidirectional reflectance distribution function (BRDF) based on the theory of target geometric modeling and track, and calculated the visible light scattering intensity variation of satellite observing at the northeast three stations at a certain time, the three peak values of which reached or approached to 7.510-3W/cm2sr with time, however, the scattering intensity in Aletai of Xinjiang was only 3.7510-3W/cm2sr when the other northeast three stations peaked. The results imply that the satellite optical scattering radiance tendencies at the northeast three sites are similar merely with the time delay induced by the latitude difference, but the radiance variation trend of Aletai, Xinjiang is quite different which has a very big longitude difference. The method proposed has been applied in the acquisition of space target more information selection in multistation observations.