Adaptive Locally Optimum Processing for Interference Suppression from Communication and Undersea Surveillance Signals
J.W. Bond, Broman, Vincent, David W. J. Stein, Zeidler, James, Hui, Stefen · Defense Technical Information Center (DTIC) · 1994
The technical results contained in this report include: Formulas for optimum processing of complex samples when the sign als has known and unknown phase structure; Formulas for optimum processing of complex sample amplitude, phases, and symmetric phase-differences when the signal has known and unknown phase structure; Formulas for the optimum processing of the frequency domain representation of the signal samples when the signal is narrowband; explicit formulas for processing samples when the statics are modeled by either non- central or central mixture models for which the parameters are estimated or implicit; Processing gain over traditional processing bounds and estimates in terms of model parameters for the above algorithms when the statics are modeled by either non-central or central mixture models; Comparison of processing gain bounds and estimates with performance estimates obtained through simulations for two- and three-state mixture models; Simulation results for averages of the transformed samples; and results for the loss of performance due to target motion for processing at the output of a beamformer.