单向链式网络的激光同步技术研究

Laser synchronous technology study of one-way chain network

为了实现单向链式网络的稳定同步,需要对单向链式网络的同步方法进行研究。当前同步方法主要分析了基于光学补偿方式和波分复用技术的单向链式网络中本地和远程时间信号同步的原理,并通过实验验证了当前方法提高了单向链式网络同步精度,但存在计算复杂度较高,且应用范围受限的问题。为了在保证同步精度的基础上延长网络生存周期,提出一种基于激光技术的单向链式网络同步方法,首先以节点最大Lyapunov指数的正负作为基于激光技术的单向链式网络同步能否实现的判据,利用最大Lyapunov指数实现单向链式网络的延迟同步;然后依据线性稳定性定理和激光技术实现单向链式网络的完全同步。通过实验分析表明,所提方法能够充分利用单向链式网络的节点剩余能量,提高同步精度,延长网络生存寿命。

In order to realize the stable synchronization of the one-way chain network, the synchronous method of the one-way chain network is studied. Current synchronization method is mainly based on optical compensation mode is analyzed and the wavelength division multiplexing technology of one-way chain network in the principle of local and remote synchronization time signal, and improve the current method is verified through the experiment the one-way chain network synchronization accuracy, but high computational complexity, and the application range is limited. In order to prolong the network life cycle to ensure synchronization precision on the basis of, put forward a kind of one- way chain network synchronization method based on laser technology, first of all to maximum Lyapunov index of the positive and negative nodes as a one-way chain network synchronization realization based on the technology of laser cri- terion, using the maximum Lyapunov index of one-way chain network delay synchronization; Then the linear stability theorem and laser technology are used to realize the complete synchronization of a one-way chain network. The experi- mental analysis shows that the proposed method can make full use of the residual energy of the nodes of a one-way chain network, improve the synchronization accuracy and extend the life span of the network.