On the design of compensator for quantization-caused input-output deviation  

作　　者：GUO YuQian GUI WeiHua YANG ChunHua 

机构地区：[1]School of Information Science and Engineering, Central South University, Changsha 410083, China

出　　处：《Science China(Information Sciences)》2011年第4期824-835,共12页中国科学（信息科学）（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant Nos. 61074002, 61074001);the Fundamental Research Funds for the Central Universities, China (Grant No. 2010QZZD016)

摘　　要：This paper considers the design of compensators for systems with quantized inputs in order to reduce the influence of quantization. For systems with （vector） relative degrees, we propose a kind of compensators which can compensate for the accumulated output deviation completely caused by quantization. The proposed compensators axe capable of keeping the differences of the input-output responses between the systems with quantized inputs and the original systems without considering quantization within certain small bounds. Simulations show that the compensators in this paper are robust with respect to model uncertainties, disturbance and measurement noise and can significantly improve the input-output responses of systems with both input quantization and packet dropouts.This paper considers the design of compensators for systems with quantized inputs in order to reduce the influence of quantization. For systems with （vector） relative degrees, we propose a kind of compensators which can compensate for the accumulated output deviation completely caused by quantization. The proposed compensators axe capable of keeping the differences of the input-output responses between the systems with quantized inputs and the original systems without considering quantization within certain small bounds. Simulations show that the compensators in this paper are robust with respect to model uncertainties, disturbance and measurement noise and can significantly improve the input-output responses of systems with both input quantization and packet dropouts.

关 键 词：networked control systems QUANTIZATION packet dropout I/O deviation compensation 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论] TD61[自动化与计算机技术—计算机科学与技术]