NDLI: Fast and Accurate Computation of the Myriad Filter via Branch-and-Bound Search

Content Provider	IEEE Xplore Digital Library
Author	Nunez, R.C. Gonzalez, J.G. Arce, G.R. Nolan, J.P.
Copyright Year	1991
Abstract	The myriad filter has demonstrated to be a robust countermeasure against the negative effect that impulsive noise has over electronic systems. However, its use is still limited in systems where processing speed is critical, as is the case of radar, sonar, and real-time audio and video processing. This limitation has its roots in the challenges imposed by the numerical approximation of the myriad filter. In particular, minimization operations at the interior of nonlinear operations are sensitive components that have a direct impact on the performance of the filtering algorithms. In the case of the myriad filter, the minimization of functions with multiple local minima is a common operation, and poorly chosen algorithms compromise the good behavior of the filter. In this correspondence, we present an alternative for the minimization of the objective function in the computation of the myriad filter. This solution exploits general concepts in global optimization and adapts them to the particular case of myriad filtering. This technique improves accuracy and speed in the computation of the myriad filter, making the method feasible in many problems.
Sponsorship	IEEE Signal Processing Society
Starting Page	3340
Ending Page	3346
Page Count	7
File Size	975695
File Format	PDF
ISSN	1053587X
Volume Number	56
Issue Number	7
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-07-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Filters Minimization methods Noise robustness Electronic countermeasures Radar countermeasures Sonar Real time systems Filtering Electrical equipment industry Search methods myriad filters alpha-stable distributions branch and bound heavy tails impulsive noise
Content Type	Text
Resource Type	Article
Subject	Signal Processing Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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