摘要
提供一种微弱信号混沌检测中临界阈值的判定方法.将Lyapunov特性指数作为混沌判据引入了微弱信号混沌检测领域,为混沌检测提供了一种量上的判据.并将这种算法与其它算法进行比较,仿真实验充分证明了该方法的有效性和优越性.
An approach used to determine the critical threshold of the detection for weak signals is presented, that is the Lyapunov exponents is employed in the field of weak signal detection based on chaos, which provides a criteria for chaotic detection on quantity. An algorithm is applied to compute the Lyapunov exponents of the chaotic detection system, and is compared with other algorithms. Simulation results verify the validity and superiority of this algorithm.
出处
《地球物理学进展》
CSCD
2003年第4期748-751,共4页
Progress in Geophysics
基金
国家自然科学基金项目(40374045)资助.
