RF Fingerprint Extraction Method Based on CEEMDAN and Multidomain Joint Entropy

Algorithm 1

CEEMDAN-MJE method

Input: Signal sequences

Output: Multi-domain Joint Entropy

1. Initialization: ;

2. Get the steady-state part of the signal and the corresponding IMF components are obtained by CEEMDAN decomposition of the signal;

3. From the relevant experience, the frequency distribution of the IMF is selected according to the high and medium frequency components for superposition noted as IMF；

4. The multi-domain joint entropy feature is extracted for the IMF and is denoted as:

5. Classification and recognition of using SVM Classifier;