Nonlinear phase FIR filter design with minimum LS error and additional constraints
- 1 January 1993
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 3 (15206149) , 57-60 vol.3
- https://doi.org/10.1109/icassp.1993.319434
Abstract
The problem of approximating a complex frequency response by a real-valued FIR (finite impulse response) filter according to the L/sub 2/ norm subject to additional inequality constraints for the complex error function is examined. Starting with the Kuhn-Tucker optimality conditions which specialize to a system of nonlinear equations, an iterative algorithm is derived. These equations are solved by Newton's method in every iteration step. The algorithm allows arbitrary compromises between an L/sub 2/ and an L/sub infinity / design. The L/sub 2/ and the L/sub infinity / solutions result as special cases.<>Keywords
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