Detection and Number Estimation of LFM Signal Components in Single Channel Composite Signal

Based on constructing mathematical model of single channel composite signal, wepropose an algorithm of linear frequency modulation (LFM) signal components detection and number estimation based on delay multiplication. The algorithm realizes LFM signal components detection of single channel composite signal, and estimates component amount, corresponding parameters of every component, such as modulation slope and so on. Simulation results validate the algorithm's feasibility and availability.