  Cosmic Rays (CRs) include Galactic Cosmic Rays (GCRs) and Anomalous Cosmic
Rays (ACRs). The CR flux data of protons and heavy-ions observed with
spacecraft are often seriously contaminated by Solar Energetic Particle (SEP)
events. In this work, we separate SEPs from CRs of ACE/SIS spacecraft
observations with an automatic despiking algorithm, so we are able to study the
different variations of SEPs and CRs over a solar cycle. In particular, we
study the elemental ratio, first ionization potential dependence and elemental
dependence, and information entropy of SEPs and CRs. So that we can gain new
insights into energetic particles' different compositions, origins, and
transport processes, etc.
