Recognition method studies for radar and communication signals based on spectral correlation

In order to address the increasing complexity of electromagnetic environments and adapt to the demanding need of the integrative electronic warfare, it is necessary to study the integrative reconnaissance technology for radar and communication signals from single-platform. At present, the systemic study of integrative reconnaissance has just begun, and the automatic recognition of modulation types is a very important research area in this field. The exploration of the method presented us the following discoveries. First, it utilizes the duty ratio to separate the two types of signals; secondly, based on the excellent features of the second order cycle spectrum it gives the spectral correlation characteristics of the conventional communication and pulse compression radar signals using the CA method; then, we refer the characteristic parameter and allow signals to be automatically identified. The simulation results verify the feasibility and correctness of this method.