High-Accuracy Phase-Equalizer Design Based on Bi-linearized Phase-Error Function
The phase response of a recursive all-pass digital phase-equalizer is inherently non-linear with respect to its coefficients.In this paper,we first derive an approximate phase-error function whose numerator and denominator are approximated as linear functions of the phase-equalizer coefficients.Then,we propose a new design algorithm for fitting the phase response of an all-pass digital phase-equalizer to a given ideal phase response in the minimax sense.This design scheme utilizes a modern optimization technique called rotated-cone(Rcone)programming,which is a relatively new optimization technique.Finally,we provide a phase-fitting example for demonstrating the design accuracy of the proposed Rcone-programming technique.Moreover,we also use a numerical example to demonstrate the Rcone-programming technique.
Digital communications nonlinear-phase channel phase-equalizer Rcone-programming
Wei Qin Noboru Ito
Dalian Polytechnic University Dalian, China Faculty of Science, Toho University Funabashi, Japan
国际会议
厦门
英文
787-791
2014-08-19（万方平台首次上网日期，不代表论文的发表时间）