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B-spline FIR filters (1994)

Pang, D. ; Ferrari, L. A. ; Sankar, P. V.

Springer

Circuits, systems and signal processing 13 (1994), S. 31-64

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ISSN: 1531-5878

Source: Springer Online Journal Archives 1860-2000

Topics: Electrical Engineering, Measurement and Control Technology

Notes: Abstract This paper presents an efficient procedure for the design of interpolated FIR (IFIR) filters with linear phase. The algorithm uses the uniform B-spline function as an interpolator and solves the optimal Chebyshev approximation problem on the optimal subinterval. The technique can be used for the design of general lowpass, highpass and bandpass filters. While the number of multiplications of the IFIR filter is dependent on the bandwidth and the center frequency of the desired filter, it provides the minimum number of multiplications achievable and nearly always provides a substantial reduction when compared to Parks-McClellan designs.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF01183840

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