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Design of FIR filters with reduced computations (1989)

Ramakrishnan, K. V. ; Gopinathan, E.

Springer

Circuits, systems and signal processing 8 (1989), S. 17-23

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ISSN: 1531-5878

Source: Springer Online Journal Archives 1860-2000

Topics: Electrical Engineering, Measurement and Control Technology

Notes: Abstract The performance of a symmetric nonrecursive filter can be improved by multiple use of the same filter. The method is based on an Amplitude Change Function (ACF). An approach to the design of nonrecursive filters using an ACF is discussed in this paper. The prototype filter chosen is a Recursive Running Sum (RRS) filter which does not require any multipliers for its implementation. The required filter specifications are met by multiple use of the RRS filters. The overall filter requires a much smaller number of multiplications and adders than the one designed using the conventional method. It is shown that this method provides reduced noise due to coefficient quantization and product quantization compared with the conventional design technique.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF01598743

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