公开(公告)号：US11499912B2

公开(公告)日：2022-11-15

申请号：US16737597

申请日：2020-01-08

Applicant: CHEMIMAGE CORPORATION

Inventor： Patrick J. Treado ,  David W. Caudle ,  Matthew P. Nelson ,  Shawna Tazik

IPC: G01N21/27

Abstract: In order to avoid friendly fire incidents in the combat theater, novel covert identification systems and methods of identifying friendly forces are provided. The systems include at least a spectroscopic imaging device and a marker that interact with each other by using a synchronized, predetermined filter tuning sequence. The filter tuning sequence enables interacted photons to wavelength hop according to the predetermined tuning sequence. As a result, the covert identification system allows friendly forces to clearly identify each while avoiding detection by enemy forces that employ conventional broadband and night vision sensors.