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- Title
Initial Implementation of Generalized Haar-Like Orthonormal Transforms into FPGA-Based Devices - Part II: Parametrical Decomposition-Reconstruction Filters.
- Authors
Misans, Peteris; Valters, Gatis; Terauds, Maris; Vasilevskis, Nauris
- Abstract
This paper deals with the aspects of practical implementation of parametrical decomposition-reconstruction filter(s) (DeReFs) based on generalized parametrical Haar transform (RA-HT) introduced before by the authors. The presented CORDIC-based RA-HT device is implemented as Altera's Cyclone II FPGA. A simplified block diagram and parameters of the filter module are provided. Two versions of the module are reviewed and the version comparison is provided. The developed real-time filter for selected Altera's chip can run at sampling frequencies up to 12.5 MHz. The filters can be successfully used for both extraction and rejection of pulse-like signals with an infinite diversity of shapes. Two examples of separation of single pulse-like signal by the filter are provided. Obtained results show a noticeable improvement of extraction/rejection in comparison to the classical Haar DeReF.
- Subjects
ORTHOGONAL functions; ELECTRIC filters; ELECTRONIC instruments; PARAMETRIC devices; RELIEF models; INFORMATION measurement; ADAPTIVE signal processing; MULTISENSOR data fusion; SIGNAL detection
- Publication
Telecommunications & Electronics, 2008, p22
- ISSN
1407-8880
- Publication type
Article