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New design methods of FIR filters with signed power of two coefficients based on a new linear programming relaxation with triangle inequalities

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4 Author(s)
R. Ito ; Fac. of Eng., Sci. Univ. of Tokyo, Japan ; T. Fujie ; K. Suyama ; R. Hirabayashi

In this paper, we propose new design methods for linear phase FIR (finite impulse response) filters with signed power-of-two (SP2) coefficients based on a semi-definite programming (SDP) relaxation method. The proposed methods include a linear programming (LP) relaxation and a relaxation by adding triangle inequalities. Although such design problems are known as NP-hard problems, these methods can solve the design problems with low computational cost in comparison to traditional SDP relaxation methods. It is shown by several numerical experiments that these method are superior to the simple SDP relaxation method.

Published in:

Circuits and Systems, 2002. ISCAS 2002. IEEE International Symposium on  (Volume:1 )

Date of Conference:

2002