Energy dispersive X-ray diffraction research using coherence function

A method based on energy dispersive X-ray diffraction (EDXRD) spectrum of illicit objects of complex background using coherence function was proposed. After theoretical analysis and calculation of the coherence function, we got the best extracting frequency and the numbers of segment, and the results can also ensure that the requirements of resolution and smoothness. Then, the spectra of EDXRD of several samples of complex background were identified by coherence function, which method has been proved effective and reasonable in identifying the presence of suspicious objects packaged with complex background.