传感器网络物理信号协同压缩感知系统及感知方法

Physical signal collaborative compression sensing system and method for sensor network

Abstract

本发明揭示了一种传感器网络物理信号协同压缩感知系统及感知方法,该系统包括物理信号感知节点、物理信号重构节点、时间同步节点;各物理信号感知节点用以对物理信号进行采样,对所获采样信号向量进行随机映射得到随机映射值,同时对采样信号进行统计量计算得到统计值,将随机映射值及统计量发送至一物理信号重构节点;物理信号重构节点用以收集来自所述物理信号感知节点的随机映射值及统计量值,完成随机映射值矩阵归一化,并基于压缩感知重建算法实现物理信号重构。本发明可减少每个节点的数据通信量,提高了整个无线传感网络的寿命。同时,能在强衰落信道环境、局部节点失效及高数据丢包率情况下实现物理信号的重构及有效感知。
The invention discloses physical signal collaborative compression sensing system and method for a sensor network. The system comprises physical signal sensing nodes, a physical signal reconstruction node and a time synchronization node; wherein all physical signal sensing nodes are used for sampling physical signals, carrying out random mapping on sampled signal vectors to obtain a random mappingvalue, simultaneously carrying out statistic calculation on sampled signals to obtain a statistic value and transmitting the random mapping value and the statistic value into the physical signal reconstruction node; and the physical signal reconstruction node is used for collecting the random mapping value and the statistic value from the physical signal sensing nodes, finishing the matrix normalization of the random mapping value and realizing the physical signal reconstruction on the basis of a compression sensing reconstruction algorithm. The invention can reduce the data communication volume of each node, prolongs the service life of the whole wireless sensing network and simultaneously realizes the reconstruction and the effective sensing of the physical signals under the conditions of deep fading channel environment, local node failure and high data packet loss rate.

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Patent Citations (1)

    Publication numberPublication dateAssigneeTitle
    CN-101557636-AOctober 14, 2009广东工业大学一种无线传感器网络路由方法

NO-Patent Citations (2)

    Title
    Jarvis Haupt等.“Compressed Sensing for Networked Data”.《DRAFT》.2007,第1页第0003段,第2页第0003段,第4页第0001段,第5页倒数第0001段,第7页第0001段.
    李建中等.“无线传感器网络的研究进展”.《计算机研究与发展》.2008,第5页标题2.2.

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