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A New LFM Signal Detection Method Based on Empirical Mode Decomposition

A LFM signal detection algorithm based on empirical mode decomposition and Wigner-Hough transform is put forward. The main interference component is found and eliminated through EMD. According to principal signal separation SNR of target component is increased. Through Wigner-Hough transform the energy of LFM signal is concentrated in a peak. Simulation result shows the detection algorithm is effective and target is detected in low SNR.