Efficient reference signal cancellation in a passive radar

In this article the nonlinear Volterra-Wiener class orthogonal filter algorithm was considered as a candidate for effective reference signal elimination tool in the passive radar. The adaptive nonlinear orthogonal filter algorithms (with low-complexity and adaptive structures) were developed, and implemented within Matlab environment. The results of their testing with real-life data are comparable with the effects of the Decorelated NLMS filter algorithm employment¹.