Detection of frequency-hopping radio frequency-switch transients

摘要

When the frequency-hopping (FH) radios' frequency switches, there are transient signals which can be used to identify the specific FH radio. To extract the frequency-switch transients, a linearity detector based on the FH frequency trajectory acquired by time??frequency analysis is proposed to locate the change points between two stable signals. The FH signals that are captured in the real-world environment are used to test the performance of this method.