The Research On Information Measurement System Of Polarized Light In The Sky By Two-dimensional Scanning

Sun's rays is a sort of natural lamp-house,it will be scattered by oxygen,azote-gas or aerosol during the process of atmospheric transmission and change the polarization characteristic. The atmospheric polarization pattern is the specific distribution of polarization state formed by the polarization light.Significant information about navigation is included by the atmospheric polarization pattern. Effectual information acquisition of the polarization pattern of the sky is the precondition to make use of the polarization information. It designs a two-dimensional scanning measure system, which is on the basis of the special nerve structure of the Cataglyphis's sensitivity to the polarization. The mostly task is as below:(1) It summarizes the status and achievements on the measurement technology of atmospheric polarization information in the world.It proposes a method of information acquisition of the polarization pattern imitated the special nerve structure of the Cataglyphis's compound eye that is sensitive to the polarization.(2) It designs a two-dimensional scanning measure system of atmospheric polarization information. It introduces design method in the mass,the module design and realization of data collecting and control system, two-dimensional circumgyrating system in detail.(3) The practical testing and analysis is carried through,which is aimed at two-dimensional scanning measurement system of atmospheric polarization information.The result of the test indicates that the information acquisition of atmospheric polarization pattern of the partial arid whole region of the sky is actualized.It is valuable to apply the information acquisition of atmospheric polarization.