中文摘要：

采用一致性策略，对传感器网络的分布式H∞采样滤波进行研究。首先，每个传感器节点信息通过采样器进行采样，采样信息可以在各个传感器间进行交换，从而建立一个基本的传感器网络的采样滤波框架。在该框架下，传感器网络中的滤波问题可以等价转化为一个带有时变延时的误差系统的稳定性问题。然后，针对这一系统，获得能够使该误差系统达到稳定并且满足期望的H∞性能指标的充分条件。基于所得到的条件，给出传感器网络的分布式滤波器的设计方法。数值仿真验证了所提方法的有效性。

英文摘要：

The distributed H∞ sampled-data filtering in sensor networks based on consensus strategy was investigated . A sampled-data filtering framework was established by transmit-ting sampled-data among sensors .In this framework, the filte-ring problem was converted equivalently into one of the stabili-ty of an error system with an interval time-varying delay .A sufficient condition was derived under which the stability of the error system was guaranteed with a desired H∞ perform-ance.Based on this condition , a distributed H∞ filter design approach was developed .An illustrative example was given to demonstrate the effectiveness of the proposed method .