8Liebe H J. An Updated Model for Millimeter Wave Propagation in Moist Air[J]. Radio Sci, 1985, 20(5) :1069-1089.
9Atlas D. The Estimation of Cloud Content by Radar[J]. Meteorol, 1954, 11:309-317.
10Clothiaux E E, Miller M A, Albrecht A A, et al. An Evaluation of A 94 GHz Radar for Remote Sensing of Cloud Properties[J]. Journal of Atmospheric and Oceanic Technology,1995,12(2):201-229.