According to the theory analysis

mathematical mode showing the lineal relationship between the response of airborne scanner and the effective reflected brightness of targets has been established under the reasonable assumption

exact physical significance for related parameters is given.The measuring method of absolute parameters i.e. solar reflected radiance distribution function on the ground

has been solved under the condition of the field measurement

and it makes the sychronous measurement become practible.Based on the airborne and field data obtained in Gold-Sea Lake

Gaoyaing and Anxing counties

59 regressive equations were obtained by regressive analysis at different area

temporal

height and detective angles.t test and r test show that the correlations are obvious or quite obvious. The correlative coefficient are almost larger than 0.98

the remainder are not smaller tthan 0.93

various factors influence on the regressive coefficient

the formation of the reflected brightness image and band reflectance image have been researched.