Method of Narrowband Signal Blind Deconvolution Based on Array Model

In marine engineering technology, when targets are detected by a torpedo, we need to separate and locate the signals of targets. The signals that the torpedo sensor-array receives are always convolution mixture ones. Considering only the narrowband signal in the pure time-delayed convolution mixture, we combine blind separation with array signal processing, and transform real number convolution mixture to complex number instantaneous mixture. Therefore, based on array model of blind separation, we complete the blind deconvolution via complex number blind separation. Simulation results prove that the method is efficient, and the signals of multi-target source from sine signal deconvolution facilitate the feature identification and localization of multi-target.