Study on Continuous Chaotic Frequency Modulation Signals

This paper introduces the continuous chaotic frequency modulation signals (CCFMS), which have good autocorrelations and flat frequency spectra. We show that the CCFMS have excellent delay and velocity detection performance. Moreover, the CCFMS require far lower realization costs and can provide flexible parameters adjustment. Simulation results show that the delay resolution of the CCFMS can be improved about 12%-15% compared with that of the Gauss noise frequency modulation signal.