Suppression of narrow-band interference and multipath by spread-spectrum receiver using decision-feedback filters

Toshiaki Ogawa, Iwao Sasase, Shinsaku Mori

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

The performance of a differential phase-shift-keying (DPSK) direct-sequence (DS) spread-spectrum receiver using decision-feedback (DF) filters in the presence of narrowband interference and multipath is considered. First, the general analytic expressions for the optimum tap weights of the DF filters and minimum mean square errors are obtained. Next, the authors calculate the output signal-to-noise ratio (SNR) of the system having the optimum tap weights. The authors also consider the bit-error-rate (BER) by computer simulation. Finally, the adaptive DF filters using a recursive least square (RLS) algorithm are considered. It is found that the two-sided DF filter is superior for suppressing both interference and multipath in the spread-spectrum system. The authors also find that the adaptive DF filter using the RLS algorithm has rapid convergence.

本文言語English
ホスト出版物のタイトルIEEE Pacific Rim Conference on Communications, Computers and Signal Processing. Conference Proceedings
編集者 Anon
出版社Publ by IEEE
ページ673-676
ページ数4
ISBN(印刷版)0879426381
出版ステータスPublished - 1991
イベントProceedings of the 1991 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing Processing. Conference Proceedings - Victoria, BC, USA
継続期間: 1991 5月 91991 5月 10

出版物シリーズ

名前IEEE Pacific Rim Conference on Communications, Computers and Signal Processing. Conference Proceedings

Other

OtherProceedings of the 1991 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing Processing. Conference Proceedings
CityVictoria, BC, USA
Period91/5/991/5/10

ASJC Scopus subject areas

  • 信号処理
  • コンピュータ ネットワークおよび通信

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