计算机技术与发展
計算機技術與髮展
계산궤기술여발전
COMPUTER TECHNOLOGY AND DEVELOPMENT
2013年
9期
189-194
,共6页
数据丢包%网络噪声%Bernoulli分布%H¥ 控制器%均方渐近稳定
數據丟包%網絡譟聲%Bernoulli分佈%H¥ 控製器%均方漸近穩定
수거주포%망락조성%Bernoulli분포%H¥ 공제기%균방점근은정
packet dropouts%network noise%Bernoulli distribution%H-infinite controller%mean square asymptotically stable
文中研究了一类具有数据丢包和网络噪声的离散网络控制系统控制器设计问题。针对这类系统,同时考虑了传感器和执行器及控制器和传感器之间由于网络带来的数据丢包和噪声问题,假设丢包满足已知概率的Bernoulli分布,网络噪声都为能量有界的白噪声。采用线性矩阵不等式方法给出了H¥控制器存在的充分条件,所设计的控制器使得闭环控制系统达到均方渐近稳定并满足给定的H¥性能指标小于一个定值酌。最后仿真结果验证了该设计的可行性,并分析了丢包概率的不同和有无噪声对系统的影响。
文中研究瞭一類具有數據丟包和網絡譟聲的離散網絡控製繫統控製器設計問題。針對這類繫統,同時攷慮瞭傳感器和執行器及控製器和傳感器之間由于網絡帶來的數據丟包和譟聲問題,假設丟包滿足已知概率的Bernoulli分佈,網絡譟聲都為能量有界的白譟聲。採用線性矩陣不等式方法給齣瞭H¥控製器存在的充分條件,所設計的控製器使得閉環控製繫統達到均方漸近穩定併滿足給定的H¥性能指標小于一箇定值酌。最後倣真結果驗證瞭該設計的可行性,併分析瞭丟包概率的不同和有無譟聲對繫統的影響。
문중연구료일류구유수거주포화망락조성적리산망락공제계통공제기설계문제。침대저류계통,동시고필료전감기화집행기급공제기화전감기지간유우망락대래적수거주포화조성문제,가설주포만족이지개솔적Bernoulli분포,망락조성도위능량유계적백조성。채용선성구진불등식방법급출료H¥공제기존재적충분조건,소설계적공제기사득폐배공제계통체도균방점근은정병만족급정적H¥성능지표소우일개정치작。최후방진결과험증료해설계적가행성,병분석료주포개솔적불동화유무조성대계통적영향。
Research the discrete network control system design problems with data packet dropouts and network noise. Aiming at this sys-tem,data packet dropouts and network noise problems are considered in both sensor-to-controller and controller-to-actuator sides. As-sume that the probability of packet dropout meets known Bernoulli distribution,network noise is white energy bounded noise. Use the lin-ear matrix inequality ( LMI) to give the sufficient conditions of H-infinite controller,so that the closed-loop system is mean square as-ymptotically stable and guarantees a given H-infinity performance. Finally,the simulation result demonstrates the feasibility,and analyzes the case under different packet dropout rates and whether there is network noise or not.