It was convenient , shortcut and multi-time and interface compared with the traditional soil moisture monitoring methods by using ATIM .
同传统的水分监测方法相比，表观热惯量法监测土壤水分具有方便、快捷、多时相等特点；
In this paper , hybrid orbital expression of centre atim of common configuration compounds have been derived by using angular overlap factor in angular overlap model .
Based on the analysis of feasibility applying remote sensing methods to monitor soil moisture , the basic theories and particular implement processes monitoring soil moisture were introduced by Apparent Thermal Inertia Method ( ATIM ) .
Free spectrum bands are used for data transmission and reservation mechanism is used during the data channel consultation stage of ATIM window in MMAC protocol . This avoids the competition collision caused by the cognitive nodes which choose the same channel when reusing the CSMA / CA protocol in the subsequent data transmission stage .
