H-infinity optimal causal IIR inverse filter for the cubic spline

H-infinity optimal causal IIR inverse filter for the cubic spline

version 1.0.0.0 (1.32 KB) by Masaaki Nagahara

This computes the H-infinity optimal causal filter (indirect B-spline filter) for the cubic spline.

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Updated 03 Feb 2011

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Computes the H-infinity optimal causal filter (indirect B-spline filter) for the cubic spline.

[INPUT]
d: delay

[OUTPUT]
psi: the optimal filter psi(z) in a TF object
gopt: optimal value

This file is based on the following paper:
M. Nagahara and Y. Yamamoto,
H-infinity optimal approxmation for causal spline interpolation,
Signal Processing, Vol. 91, No. 2, pp. 176-184, 2011.

Cite As

Masaaki Nagahara (2021). H-infinity optimal causal IIR inverse filter for the cubic spline (https://www.mathworks.com/matlabcentral/fileexchange/30288-h-infinity-optimal-causal-iir-inverse-filter-for-the-cubic-spline), MATLAB Central File Exchange. Retrieved July 28, 2021.