A Novel Passive Millimeter-wave Local Encryption Algorithm Research

Passive millimeter-wave imaging is a major research direction of millimeter wave detection. The multi-layer brightness temperature tracing method (MBTTM) is a common method for simulating imaging. However, this method requires a certain amount of time to calculate the imaging results and cannot achieve real-time imaging. This article proposes a new method that can effectively overcome this shortcoming. In the new method, an adaptive encryption algorithm is proposed. This article compares the results of the simulation imaging and the results of the actual measurement. Compared results demonstrate that the new method takes less computation time to simulate rough-surfaced scenes.