Effect of Time Delay on Binary Signal Detection via a Bistable System

The effect of time delay on binary signal detection via a bistable system in the presence of white or colored Gaussian noise is investigated. By defining the bit error rate based on the solution of the approximated Fokker- Planck equation, the detector performance is investigated theoretically and i...

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Published inChinese physics letters Vol. 31; no. 2; pp. 9 - 12
Main Author 曾令藻 刘炳阳 徐亦达 李建龙
Format Journal Article
LanguageEnglish
Published 01.02.2014
Subjects
Binary systems (materials)
Computer simulation
Correlation
Dynamical systems
Fokker-Planck方程
Monte Carlo methods
Optimization
Signal detection
Time delay
二元
仿真验证
信号检测
双稳系统
时间延迟
非线性系统
高斯噪声
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Summary:The effect of time delay on binary signal detection via a bistable system in the presence of white or colored Gaussian noise is investigated. By defining the bit error rate based on the solution of the approximated Fokker- Planck equation, the detector performance is investigated theoretically and is verified by Monte Carlo simulation. It is shown that, when the system parameter or noise intensity is optimally chosen, the increasing time delay generally improves the system performance. It is also shown that it is more difficult to accurately predict the system performance with a larger time delay and correlation time. This may inspire more thorough investigations in cooperative effects of a nonlinear system and time delay on signal processing.
Bibliography:The effect of time delay on binary signal detection via a bistable system in the presence of white or colored Gaussian noise is investigated. By defining the bit error rate based on the solution of the approximated Fokker- Planck equation, the detector performance is investigated theoretically and is verified by Monte Carlo simulation. It is shown that, when the system parameter or noise intensity is optimally chosen, the increasing time delay generally improves the system performance. It is also shown that it is more difficult to accurately predict the system performance with a larger time delay and correlation time. This may inspire more thorough investigations in cooperative effects of a nonlinear system and time delay on signal processing.
11-1959/O4
ZENG Ling-Zao, LIU Bing-Yang, XU Yi-Da, LI Jian-Long（ 1 College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310029 2Department of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027）
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/31/2/020501