منابع مشابه
Recursive Digital Filters
1 Recursive Digital Filters A digital filter is the implementation of an algorithm that computes an output sequence of numbers from an input sequence of numbers. The algorithm may be implemented (or realized) using a general-purpose computer running software, a special-purpose computer such as a Digital Signal Processor (DSP) running software, or on special purpose hardware such as an Applicati...
متن کاملStability Criterion for Recursive Filters
A new criterion is derived that relates the stability of two-dimensional recursive filters to the properties of its cepstrum. It provides a procedure for the decomposition of unstable recursive filters having nonzero, nonimaginary frequency response into stable recursive filters. The optimal solution of the decomposition problem is discussed, including numerical implementation and nonrecursive ...
متن کاملDesign of Two-Dimensional Recursive Digital Filters
[12] T. L. ,Fhang, “Limit cycles in a two-dimensional first-order digital y;lt; IEEE Trans. Circuits Syst., vol. CAS-24, pp. 15-19, Jan. + [13] A. Fettweis, “Pseudopassivity, sensitivity and stability of wave digital filters,” IEEE Trans. Circuit Theory, vol. CT-19, pp. 668673, Nov. 1972. [ 141 ?, “Realizability of digital filter networks,” Arch. Elektr. Alfred Fettweis (M’56-SM’62-F’75), for a...
متن کاملTwo-dinsional Hexag0nl Digital Recursive Filters*
It is known that band—limited two— dimensional (20) signals can be sampled and processed using different periodic sampling strategies, the most common and perhaps well known approach being rectangular sampling. Recently, it has been pointed out that sampling techniques such as hexagonal sampling can offer substantial savings in terms of sampling density and computation time as compared to recta...
متن کاملA Comparative Study of Stability Testing Approaches of Two-Dimensional Recursive Digital Filters
There are many problems in science and engineering whose solution is applied in the design of Multi-Dimensional (MD) digital filters. Digital filtering finds an important position in the field of digital signal and image processing. Recently there had been a great deal of interest in the design and stability analysis of Two-Dimensional (2-D) recursive digital filters. The design techniques for ...
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ژورنال
عنوان ژورنال: Journal of Mathematical Analysis and Applications
سال: 1979
ISSN: 0022-247X
DOI: 10.1016/0022-247x(79)90052-0