舰船电子工程2017，Vol.37Issue(3)：118-121,4.DOI:10.3969/j.issn.1672-9730.2017.03.029
噪声对混沌系统检测性能的影响
Influence of Noise on Detection Performance of Chaotic System
石敏 1虢应华 2陈晓辉1
作者信息
- 1. 水声对抗技术重点实验室 湛江 524022
- 2. 91388部队 湛江 524022
- 折叠
摘要
Abstract
Chaotic system has the characteristics that immune to noise and it is sensitive to the signal whose frequency is same as the inner signal's frequency in a chaotic system in theory.Hereby weak signal hides in strong broad band background noise can be detected by chaotic system.But in the actual simulating process, it finds when choosing critical value of chaotic system with higher precision, pure noise inputs into chaotic system which is under critical state will probably induce to system state variation, namely producing false alarm.The false alarm rate is increasing along with the decreasing of noise power, while the false alarm rate is beginning to decrease when noise power descend to certain value, namely the false alarm rate exists peak value.And the false alarm rate is related to precision of the critical value of chaotic system.The higher precision of the critical value of chaotic system is, the higher the false alarm rate of the chaotic system is.关键词
微弱信号检测/混沌系统检测性能/噪声/虚警率Key words
weak signal detection/detection performance of chaotic system/noise/false alarm rate分类
信息技术与安全科学引用本文复制引用
石敏,虢应华,陈晓辉..噪声对混沌系统检测性能的影响[J].舰船电子工程,2017,37(3):118-121,4.
