LQG Control with Fixed-Rate Uniform Quantization for SISO Systems

摘要：

This paper considers the quantized infinite-horizon LQG control system, of which the measurement signal is quantized by a fixed-rate quantizer before going into the controller. It turns out that only weak separation principle holds for the LQG control system with communication channels. We study the problem of quantized LQG for a single-input-single-output (SISO) system. An adaptive fixed-rate quantizer is designed to achieve the mean-square stability and the optimal distortion performance. For a quantizer with a fixed bit rate of R (per sample), we show that the quantization distortion order is R2.2R for a large R. Simulation examples are given to demonstrate the effectiveness of the proposed methods.

关键词： Quantized feedback control linear quadratic Gaussian control fixed-rate quantization uniform quantizer

作者: Li Chai Minyue Fu

作者单位: School of Information Science and Engineering Wuhan University of Science and Technology, Wuhan 4300 Department of Control Science and EngineeringZhejiang University, Hangzhou 310027, China

会议类型: 国际会议

会议名称: The 31st Chinese Control Conference(第三十一届中国控制会议)

会议地点: 合肥

会议语种:英文

页码: 5873-5877

在线出版日期: 2012-07-01（万方平台首次上网日期，不代表论文的发表时间）