An Algorithm for Obtaining the Inverse for a Given Polynomial in Baseband

• MA Yuelin

  Advanced Wireless Communication Research Center of the University of Electro Communications

• YAMAO Yasushi

  Advanced Wireless Communication Research Center of the University of Electro Communications

• AKAIWA Yoshihiko

  Advanced Wireless Communication Research Center of the University of Electro Communications

抄録

Compensation for the nonlinear systems represented by polynomials involves polynomial inverse. In this paper, a new algorithm is proposed that gives the baseband polynomial inverse with a limited order. The algorithm employs orthogonal basis that is predetermined from the distribution of input signal and finds the coefficients of the inverse polynomial to minimize the mean square error. Compared with the well established p-th order inverse method, the proposed method can suppress the distortions better including higher order distortions. It is also extended to obtain memory polynomial inverse through a feedback-configured structure. Both numerical simulations and experimental results demonstrate that the proposed algorithm can provide good performance for compensating the nonlinear systems represented by baseband polynomials.

収録刊行物

• IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

  IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences E96.A (3), 675-683, 2013

  一般社団法人 電子情報通信学会

キーワード

• baseband polynomial
• orthogonal basis
• nonlinearity compensation
• polynomial inverse
• predistortion

詳細情報

• CRID: 1390001206311519360
• NII論文ID: 10031167168
• NII書誌ID: AA10826239
• DOI: 10.1587/transfun.e96.a.675
• ISSN: 17451337
• ISSN: 09168508
• Web Site: https://www.jstage.jst.go.jp/article/transfun/E96.A/3/E96.A_675/_pdf
• 本文言語コード: en
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