Method of retrieving the hollow scale of target based on dynamic changes of radiation energy

Aiming at the problem that infrared detectors can only measure the surface radiation of a target while flying in space. And it is difficult to obtain the hollow scale of the target. This paper designs a method for inverting the hollow scale based on the dynamic change of radiation energy. Taking a hollow sphere as an example, the relationship between the target radiation intensity and the hollow scale and time is given. Analyzed the relationship between the target radiation amount its influencing factors. On this basis, the ralationship feature between radiation and hollow scale under different time conditions is given. Through the method in this paper, hollow scale of the target can be estimated to support target detection and recognition analysis.