NEW CUMULANT-BASED INVERSE FILTER CRITERIA FOR DECONVOLUTION OF NONMINIMUM-PHASE SYSTEMS

This work proposes a neu family of cumulant-based inverse filter crite ria J(M,m), which require a single slice of Mth-order (M greater than or equal to 3) cumulants, a (2m)th-order cumulant, and a (2M - 2m)th-o rder cumulant of the inverse filter output where 1 less than or equal to m less than or equal to M - 1, for deconvolution of linear time-inv ariant (LTI) nonminimum phase systems with only non-Gaussian output me asurements contaminated by Gaussian noise. Some simulation results are then presented for a performance comparison of the proposed criteria, Tugnait's criteria, and Chi and Kung's criteria, Finally, conclusions are presented.