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Due to electronic jamming transmitted by hostile electronic jamming equipments and unintentional jamming from other illuminating sources in the complex electromagnetic environment,the performance of non-cooperative passive detection systems may degrade it significantly.To solve the problem,a receiving frame with multiple channels for signal preprocessing is designed and a theoretical analysis to the received signals in the complex electromagnetic environment is provided.Furthermore,a scheme for jamming removal using independent component analysis is proposed.Simulation results demonstrate the proposed scheme appears as a very appealing solution for removal of jamming and an approximate 10 dB signal to distortion ratio over traditional schemes is obtained.
Due to electronic jamming transmitted by hostile electronic jamming equipments and unintentional jamming from other illuminating sources in the complex electromagnetic environment, the performance of non-cooperative passive detection systems may degrade it significantly. To solve the problem, a receiving frame with multiple channels for signal preprocessing is designed and a theoretical analysis to the received signals in the complex electromagnetic environment is provided. Future patterns, a scheme for jamming removal using independent component analysis is proposed. Simulation results demonstrate the proposed scheme appears as a very appealing solution for removal of jamming and an approximate 10 dB signal to distortion ratio over traditional schemes is obtained.