Design and characterization of nonlinear functions for the transmission of a small signal with non-Gaussian noise

• Kasai, Seiya

• Tadokoro, Yukihiro

• Ichiki, Akihisa

抄録

We design nonlinear functions for the transmission of a small signal with non-Gaussian noise and perform experiments to characterize their responses. Using statistical design theory [A. Ichiki and Y. Tadokoro, Phys. Rev. E 88, 012124 (2013)], a static nonlinear function is estimated from the probability density function of the given noise in order to maximize the signal-to-noise ratio of the output. Using an electronic system that implements the optimized nonlinear function, we confirm the recovery of a small signal from a signal with non-Gaussian noise. In our experiment, the non-Gaussian noise is a mixture of Gaussian noises. A similar technique is also applied to the optimization of the threshold value of the function. We find that, for non-Gaussian noise, the response of the optimized nonlinear systems is better than that of the linear system.

収録刊行物

• Physical Review E

  Physical Review E 88 (6), 062127-, 2013-12-16

  American Physical Society

詳細情報

• CRID: 1050564288969020416
• NII論文ID: 120005367437
• HANDLE: 2115/54592
• ISSN: 15393755
• 本文言語コード: en
• 資料種別: journal article
• データソース種別:
  • IRDB
  • CiNii Articles