Radiation source fingerprint extraction method and device based on C-E features and individual identification system

The invention belongs to the technical field of radiation source individual identification, and particularly relates to a radiation source fingerprint extraction method and device based on C-E features and an individual identification system. The method comprises the steps of extracting envelope spectrum information entropy in a signal sample as a fingerprint feature; and for the fingerprint features, combining the instantaneous parameter complexity and the entropy features to obtain C-E features used for identifying the radiation source individuals. According to the method, through radiationsource fingerprint feature extraction of Hilbert envelope spectrum information entropy, joint C-E features for radiation source individual identification are obtained by combining complexity and entropy features of instantaneous parameters; compared with a single-class feature, the feature has the advantages that the recognition rate is greatly improved at a weak time cost, and the accuracy is improved by 15.2% and 19.7%