Single channel pulse train radar signal separation using algebraic method

In the complex radio environment, single sensor may receive a number of mixed time-frequency overlapping radar signals. Considering the pulse train form of these signals, this paper achieves separation of fixed pulse repetition interval signals using their periodicities, and proposes the separation method of variational pulse repetition interval signals using their algebraic properties. Both approaches are based on the linear equations construction and solution without requirement of intra-pulse information of the source signals, and applicable under the situation that the source signals are time-frequency overlapping. The simulation results confirm the validity of their performance.