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Design and characterization of nonlinear functions for the transmission of a small signal with non-Gaussian noise
| Title: | Design and characterization of nonlinear functions for the transmission of a small signal with non-Gaussian noise |
| Authors: | Kasai, Seiya Browse this author →KAKEN DB | | Tadokoro, Yukihiro Browse this author | | Ichiki, Akihisa Browse this author |
| Issue Date: | 16-Dec-2013 |
| Publisher: | American Physical Society |
| Journal Title: | Physical Review E |
| Volume: | 88 |
| Issue: | 6 |
| Start Page: | 062127 |
| Publisher DOI: | 10.1103/PhysRevE.88.062127 |
| PMID: | 24483406 |
| Abstract: | 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. |
| Rights: | ©2013 American Physical Society |
| Type: | article |
| URI: | http://hdl.handle.net/2115/54592 |
| Appears in Collections: | 情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 葛西 誠也
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