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An active disturbance rejection controller (ADRC) is designed and originally implemented on a real torsional plant. The torsional plant resembles the dynamics of a rotational system. Due to mass imbalance, centrifugal imbalance, and the non-coincidence between the principal and geometric axes of a rotating disc, the system parameters of this torsional plant are varying constantly. In addition, an...
In this paper, a practical Identification strategy is applied to the optimal design of fractional-order iterative learning control (FOILC). The initialized fractional-order gray-box system with commensurate order or non-commensurate order is identified by using the fractional-order iterative learning Identification and the least square or instrumental variable method. The optimal Dα-type FOILC is...
This paper presents a design for RCT, based on the new concept of a RRAE, acting as an experiment platform for studying the major characteristics of RRAE and simulating its working states. It is also the first time that a DMCS, based on PXI bus for measurement and Programmable Logic Controller for control, is used in the test-rig of RRAE. As an essential part of DMCS, the DCS needs the ability of...
The high-precision trajectory tracking control for space manipulator flexible joint is researched. The second-order cascade dynamics equations with motor uncertainties and load disturbance of flexible joint are established. A control strategy of active disturbance rejection control (ADRC) and double closed-loop control is presented based on cascade systems. Both the inner and outer loops are designed...
Total Isotropic Sensitivity (TIS) refers to the average receiver sensitivity across the entire radiated sphere around the device, which represents the overall receiving capability of the Device under Test (DUT). The designed GPS devices will not be qualified to manufacture unless they meet a minimum certified standard prompted by Cellular Telecommunications & Internet Association.
Dependability is an important system attribute for microfluidic lab-on-chip devices. On-line testing offers a promising method for detecting defects, fluidic abnormalities, and bioassay malfunctions during chip operation. However, previous techniques for reading test outcomes and analyzing pulse sequences are cumbersome, sensitive to the calibration of capacitive sensors, and error-prone. We present...
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