An Optimal Tracking Performance of MIMO NCS with Quantization and Bandwidth Constraints

Cheng, Lingli; Zhan, Xisheng; Wu, Jie

doi:10.1002/asjc.1818

Cited by 16 publications

(17 citation statements)

References 21 publications

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“…Until now, several useful bandwidthsaving strategies have been proposed. First of all, quantization is thought to be a passive bandwidth-saving method, as much redundant data are discarded in the signal transformation from analog to digital [7][8][9][10]. In [7], a quantized event-driven control approach is proposed to reduce the amounts of data for each transmission.…”

Section: Introductionmentioning

confidence: 99%

“…A new dynamic quantization strategy is presented to prevent saturation of the quantizer with external disturbances in [9]. In [10], an optimal tracking performance of multiple input multiple output (MIMO) NCS with quantization and bandwidth constraint is proposed to realize the optimal tracking performance and the bandwidth-saving as well. It is worth noting that quantization can improve the bandwidth utility to some extent.…”

Section: Introductionmentioning

confidence: 99%

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Generalized Model Reference Scheduling and Control Co-Design with Guaranteed Performance

2021

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In this paper, a generalized model-reference scheduling (GMRS) scheme is proposed for a networked control system (NCS) with guaranteed performance control and medium access constraint (MAC). The GMRS presented reduces conservatism to some extent, and its performance is improved by adjusting the weighted gain. In addition, two cases of uncertainty existing in the system matrix and control matrix are considered. For the first case, a co-design of guaranteed performance control and the GMRS is studied for the NCS with and without zero-order hold mechanism. For the second case, the uncertainty induced from time delay is considered in the guaranteed performance control and the GMRS co-design. Finally, illustrative examples are given to demonstrate the effectiveness of the proposed co-design schemes.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Generalized Model Reference Scheduling and Control Co-Design with Guaranteed Performance

2021

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“…The associate editor coordinating the review of this manuscript and approving it for publication was Heng Zhang. communication network constraints, such as the best tracking performance of networked control systems, and the performance limitation depends on the essential characteristics of the NCSs and communication parameters. In past years, several scholars have achieved excellent results in the performance limitation about NCSs [22]- [26]. In [22], the modified tracking performance limitation of MIMO NCSs under packet dropouts has been obtained.…”

Section: Introductionmentioning

confidence: 99%

“…In past years, several scholars have achieved excellent results in the performance limitation about NCSs [22]- [26]. In [22], the modified tracking performance limitation of MIMO NCSs under packet dropouts has been obtained. The performance limitation for MIMO NCSs under bandwidth and quantization constraints have been discussed in [23].…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of NCSs Under Channel Noise and Bandwidth Constraints

Zhan

Zhang

et al. 2020

IEEE Access

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This paper investigates the performance limitation of multi-input multi-output (MIMO) networked control systems (NCSs). The communication channel is modeled as a power constrained channel with channel noise and the bandwidth constraints. The optimal performance index of the system is expressed by the covariance of the reference input signal and the system output error signal. Some new results about MIMO NCSs are obtained by co-prime factorization, inner-outer factorization and spectral decomposition techniques. The results demonstrate that the tracking performance depends on the non-minimum phase zeros, unstable poles and their directions. At the same time, the network communication parameters constraints, energy constraints and the essential feature of reference input signal also restrict the performance. Some illustrative examples are presented to demonstrate the feasibility of the proposed methods. INDEX TERMS Bandwidth constrains, channel noise, communication channels, performance limitation.

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“…The solution fits in the field of Networked Control Systems (NCSs) [1,2,3,4], which is a prolific control area that addresses control scenarios where different devices share a common communication link. The use of a shared communication network introduces some advantages like cost reduction, reconfigurability, and ease of installation and maintenance, but also some drawbacks such as the possible occurrence of network-induced delays [5,6,7,8,9,10], packet dropouts [11,12,13], packet disorder [14,15,16], and network bandwidth constraints [17,18,19]. In this work, the drawbacks considered in the network are time-varying delays and packet disorder.…”

Section: Introductionmentioning

confidence: 99%

A Remote Control Strategy for an Autonomous Vehicle with Slow Sensor Using Kalman Filtering and Dual-Rate Control

Cuenca

Zhan

Salt

et al. 2019

Sensors

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This work presents a novel remote control solution for an Autonomous Vehicle (AV), where the system structure is split into two sides. Both sides are assumed to be synchronized and linked through a communication network, which introduces time-varying delays and packet disorder. An Extended Kalman Filter (EKF) is used to cope with the non-linearities that appear in the global model of the AV. The EKF fuses the data provided by the sensing devices of the AV in order to estimate the AV state, reducing the noise effect. Additionally, the EKF includes an h-step-ahead state prediction stage, which, together with the consideration of a packet-based control strategy, enables facing the network-induced delays. Since the AV position is provided by a camera, which is a slow sensing device, a dual-rate controller is required to achieve certain desired (nominal) dynamic control performance. The use of a dual-rate control framework additionally enables saving network bandwidth and deals with packet disorder. As the path-tracking control algorithm, pure pursuit is used. Application results show that, despite existing communication problems and slow-rate measurements, the AV is able to track the desired path, keeping the nominal control performance.

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An Optimal Tracking Performance of MIMO NCS with Quantization and Bandwidth Constraints

Cited by 16 publications

References 21 publications

Generalized Model Reference Scheduling and Control Co-Design with Guaranteed Performance

Generalized Model Reference Scheduling and Control Co-Design with Guaranteed Performance

Performance Analysis of NCSs Under Channel Noise and Bandwidth Constraints

A Remote Control Strategy for an Autonomous Vehicle with Slow Sensor Using Kalman Filtering and Dual-Rate Control

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