A superiority inheritance based method to search the ambiguity function main ridge slice of radar emitter signals

Among the approaches to solve the sorting problems of complex radar emitter signals, extracting then supplementing the novel signal characteristics is an effective one. The features extracted from the slice of ambiguity function main ridge (AFMR) have turned out to be one of the best practicable parameters because their good signal resolution and good ability to resist noise. In order to search the AFMR slice of a signal more quickly and more accurately, this paper constructs a smart search scheme based on the strategy of superiority inheritance. The results of simulation experiments show that, the proposed method can reduce the time of searching the slice of AFMR to 28.6% comparing with the original method, and it have a high convergence probability to search the slice. In addition, it is clear that the proposed algorithm can search more accurate AFMR slice via elite preservation strategies of the σ neighborhood. These results enhance the practical application of possibility of the AFMR characteristics.