A Periodic Scheme for Pipelining Unstable Digital Controllers

نویسندگان

  • Cishen Zhang
  • Ran Yang
  • Lihua Xie
چکیده

Pipelining is a means of obtaining fast sampling and processing speed in hardware implementation of digital systems and it requires a look ahead system model for the pipelined system. However, existing methods for the design of look ahead system models are only for stable systems and hence are not applicable to unstable digital controllers for closed loop system control. In this paper a periodic method is presented for the design of look ahead system models for unstable digital controllers. Analysis is carried out to show that the pipelined implementation of the unstable digital controller using the proposed periodic look ahead system model can maintain the closed loop control system stability. Copyright c ©2005 IFAC

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Quantized Feedback Control for Networked Control Systems Under Communication Constraints

This paper investigates the feedback stabilization problem for networked control systems (NCSs) with unbound process noise, where sensors and controllers are connected via noiseless digital channels carrying a finite number of bits per unit time. A sufficient condition for stabilization of NCSs, which relies on a variable-rate digital link used to transmit state measurements, is derived. A lowe...

متن کامل

A Numerical Investigation on the Unstable Flow in a Single Stage of an Axial Compressor

An unsteady two-dimensional finite-volume solver was developed based on Van Leer’s flux splitting algorithm in conjunction with “Monotonic Upstream Scheme for Conservation Laws (MUSCL)” limiters to improve the order of accuracy and the two-layer Baldwin-Lomax turbulence model was also implemented. Two test cases were prepared to validate the solver. The computed results were compared with the e...

متن کامل

ASIC Implementation of one level 2D DWT and 2D DWT in Hybrid Wave-Pipelining & Pipelining

Pipeline system requires clock routine complexity and clock skews between different parts of the system. Higher operating frequencies may be obtained in digital system using wave pipelining which permits clock frequencies. This requires proper selection of clock periods and clock skews for latched output of combinational logic circuit at the stable periods. Hybrid scheme is aimed at combination...

متن کامل

Lyapunov Based Sampling for Adaptive Tracking Control in Robot Manipulators: An Experimental Comparison

In digital computer based controllers, efficient sampling mechanisms for sensors as well as controllers is of great importance. In this paper, we are interested in designing controllers that result in low average frequency of control updates while simultaneously ensuring stability of the robotic system. We experimentally investigate a non-periodic state-triggered control sampling scheme (design...

متن کامل

Coordinated Motion Control of Autonomous and Semiautonomous Mobile Agents

This paper addresses networked control problems which arise in the coordinated motion control of autonomous and semiautonomous mobile agents, where the sensors and controllers are geographically separated and connected by digital communication channels carrying a finite number of bits per unit time. Different from the existing results, this case with quantized output measurements and limited da...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2005