An adaptive recursive filter.
Parker, Sydney R.
Kirk, Donald E.
MetadataShow full item record
An adaptive recursive digital filter is presented in which feedback and feedforward gains are adjusted adaptively to minimize a least square performance function on a sliding window averaging process. A two-dimensional version of the adaptive filter is developed and its performance compared with the optimal Wiener filter. The filter is shown to be effective in separating three diagonal trajectory streaks from a background of correlated noise added to white noise. Although the recursive adaptive filter approaches the optimal Wiener filter in performance, it does not require a priori statistical knowledge as does the Wiener filter to which it is compared. The results indicate that the recursive adaptive filter "learns" the statistics and adapts.
Approved for public release; distribution is unlimited
Showing items related by title, author, creator and subject.
Autonomous time-frequency cropping and feature-extraction algorithms for classification of LPI radar modulations Zilberman, Eric R. (Monterey, California. Naval Postgraduate School, 2006-06);Three autonomous cropping and feature extraction algorithms are examined that can be used for classification of low probability of intercept radar modulations using time-frequency (T-F) images. The first approach, Erosion ...
Ben-Yakov, Uzi (Monterey, California. Naval Postgraduate School, 1979-12);Self adaptive filters adjust their parameters to perform an almost optimal filtering operation without apriori knowledge of the input signal statistics . Two approaches to the design of efficient self adaptive discrete ...
The influence of physical system parameters on the performance of adaptive filters for system identification of mechanical systems Dargel, Michael R. (Monterey, California. Naval Postgraduate School, 1996-09);Recursive and nonrecursive least mean square adaptive filters were used to predict the output of various mechanical systems for a given input. The effects of quality factor (Q), dispersion and transmission time on adaptive ...