An Identification Method for Single-Input Single-Output Linear Systems with White Noise Gain Function

Blind identification of single-input multiple-output pole-zero systems

In this paper we present a technique for the blind identi cation of single-input multiple-output (SIMO) pole-zero (PZ) systems using only the second order statistics of the system output data. The system input is treated as an unknown deterministic sequence, and hence, restrictive i.i.d. assumptions on the input sequence are not required. We estimate the poles and zeros of the channels in two s...

A geometric paradigm exposing high gain root sensitivity of single-input single-output systems

Structural decomposition of linear singular systems: the single-input and single-output case

In this paper, we present a structural decomposition for general single-input and single-output linear singular systems. Such a decomposition has a distinct feature of capturing and displaying all the structural properties, such as the .nite and in.nite zero structures and redundant dynamics, of the given system. It is expected to be a powerful tool in solving control problems for singular syst...

An Adaptive Sinusoidal Disturbance Rejection Controller for Single-Input-Single-Output Systems

Abstract: The design of an adaptive sinusoidal disturbance rejection controller for SingleInput-Single-Output (SISO) systems is presented in this paper. Sinusoidal disturbance rejection problems exist in industry applications such as velocity ripples in a CNC milling machine. The controller is first developed based on the Internal Model Principle (IMP) and the polezero placement technique, then...

Optimal Decoupled Disturbance Observers for Dual-input Single-output Systems

The disturbance observer (DOB) has been a popular robust control approach for servo enhancement in single-input single-output systems. This paper presents a new extension of the DOB idea to dualand multi-input single-output systems, and discusses an optimal filter design technique for the related loop shaping. The proposed decoupled disturbance observer (DDOB) provides the flexibility to use th...