CAJ | 학술논문

研究了一类具有随机时变时滞和数据包丢失的网络系统 H∞滤波器设计问题。由于系统的测量数据打包后经过网络传输到远端的滤波器，数据包在传输过程中会发生时滞甚至丢失等现象，并且时滞的发生是随机的且有界，而数据丢包可能是连续的。提出一个新的模型来同时描述随机时滞和多丢包的网络诱导现象，并基于此模型设计使滤波误差系统均方意义下渐近稳定并具有指定 H∞性能的滤波器。滤波器参数通过求解一个线性矩阵不等式得到。仿真算例表明了所提算法的有效性。
연구료일류구유수궤시변시체화수거포주실적망락계통 H∞려파기설계문제。유우계통적측량수거타포후경과망락전수도원단적려파기，수거포재전수과정중회발생시체심지주실등현상，병차시체적발생시수궤적차유계，이수거주포가능시련속적。제출일개신적모형래동시묘술수궤시체화다주포적망락유도현상，병기우차모형설계사려파오차계통균방의의하점근은정병구유지정 H∞성능적려파기。려파기삼수통과구해일개선성구진불등식득도。방진산례표명료소제산법적유효성。
This paper investigates the H∞ filter design problem for a class of network systems with random varying time delays and data packet dropouts .Because the measured output of the system is transmitted through networks to the remote filter after data packing ,the data packet will unavoidably be received with delays even be lost during the transmission .Moreover ,the time delay occurs randomly and it is bounded and the data packet may be lost consecutively .A new model is presented to describe the network induced phenomena of random delays and multiple packet dropouts simultaneously in this paper .Based on the new model ,an H∞ filter is designed to make the filtering error system asymptotically stable in the mean‐square sense and guarantee a prescribed H∞ performance .The parameters of the filter are obtained by solving the linear matrix inequality (LMI) . The numerical example is given to illustrate the effectiveness of the proposed method .