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12 Results Found

  • Article
  • Open Access
2,209 Views
12 Pages

5 October 2024

This paper proposes a novel adaptive law that uses a quasi-convex function and a novel sliding variable in an adaptive sliding mode control (ASMC) scheme for robot manipulators. Since the dynamic equations of robot manipulators inevitably include mod...

  • Article
  • Open Access
5 Citations
2,956 Views
21 Pages

Time-Delay Estimation Improves Active Disturbance Rejection Control for Time-Delay Nonlinear Systems

  • Syeda Nadiah Fatima Nahri,
  • Shengzhi Du,
  • Barend J. van Wyk and
  • Tawanda Denzel Nyasulu

13 August 2024

Lately, active disturbance rejection control (ADRC), a model-independent controller, has become popular for combating various forms of uncertain disturbances incurred in industrial applications. ADRC was validated for external disturbances, internal...

  • Article
  • Open Access
2 Citations
1,137 Views
23 Pages

10 March 2025

To tackle the challenges of distributed flexible resource coordination and inherent control delays in virtual power plant (VPP)-participated frequency regulation (FR) for interconnected power systems, this paper proposes a novel distributed model pre...

  • Article
  • Open Access
16 Citations
2,375 Views
18 Pages

In this study, a discrete-time incremental backstepping (DTIBS) controller with an extended Kalman filter (EKF) is proposed for unmanned aerial vehicles (UAVs) with unknown actuator dynamics. The Taylor series and an approximate discrete method are e...

  • Article
  • Open Access
8 Citations
6,542 Views
27 Pages

5 March 2019

The paper is focused on design of time-to-digital converters based on successive approximation (SA-TDCs—Successive Approximation TDCs) using binary-scaled delay lines in the feedforward architecture. The aim of the paper is to provide a tutoria...

  • Article
  • Open Access
8 Citations
15,345 Views
14 Pages

Effect of Performance by Excessive Advanced Fuel Injection Timing on Marine Diesel Engine

  • Hyun-Min Baek,
  • Gyun-Sik Jung,
  • Quang Dao Vuong,
  • Jae-Ung Lee and
  • Ji-Woong Lee

15 August 2023

The injection timing of fuel in a diesel engine affects the combustion condition. Advanced fuel injection prolongs the ignition delay, positively impacting the increase in maximum combustion pressure and improving output. However, excessively advance...

  • Article
  • Open Access
29 Citations
9,271 Views
19 Pages

15 November 2018

Herein, we present a low-power cyclic Vernier two-step time-to-digital converter (TDC) that achieves a wide input range with good linearity. Since traditional approaches require a large area or high power to achieve an input range >300 ns, we solv...

  • Article
  • Open Access
8 Citations
6,285 Views
14 Pages

Digital Integration of LiDAR System Implemented in a Low-Cost FPGA

  • Jiajian Huang,
  • Shengyao Ran,
  • Wei Wei and
  • Qun Yu

17 June 2022

With the development of artificial intelligence, LiDAR finds significant applications in robotics and autonomous driving. Aiming at increasing the compactness and the integration of 2-D LiDAR, this paper presents a highly digitally integrated 2-D LiD...

  • Article
  • Open Access
3 Citations
4,056 Views
17 Pages

A Low-Power ADPLL with Calibration-Free RO-Based Injection-Locking TDC for BLE Applications

  • Qinan Chen,
  • Qiang Shan,
  • Zihui Wei,
  • Xiaosong Wang,
  • Shuilong Huang and
  • Yu Liu

This paper proposes a low-power all-digital phase-locked loop (ADPLL) with calibration-free ring oscillator (RO)-based injection-locking time to digital converter (TDC) for BLE applications. The RO is reused as the delay cell of TDC, and the quantiza...

  • Article
  • Open Access
419 Views
18 Pages

Robust Relative Space Motion Control of Underwater Vehicles Using Time Delay Estimation

  • Gun Rae Cho,
  • Hyungjoo Kang,
  • Min-Gyu Kim,
  • Sungho Park,
  • Chulhee Bae,
  • Han-Sol Jin,
  • Seongho Jin and
  • Ji-Hong Li

20 November 2025

This paper presents a robust trajectory-tracking control framework for underwater vehicles operating in a relative coordinate system. Unlike conventional methods that define trajectories in the world frame, the proposed approach formulates the contro...

  • Feature Paper
  • Review
  • Open Access
2 Citations
3,015 Views
26 Pages

22 July 2025

Driven by stringent emission regulations, advanced combustion modes utilizing turbulent jet ignition technology are pivotal for enhancing the performance of marine low-speed natural gas dual-fuel engines. This review focuses on three novel combustion...

  • Article
  • Open Access
261 Views
27 Pages

17 December 2025

The electrification of vehicle chassis systems is increasingly important due to benefits such as vehicle lightweighting, enhanced safety, and design flexibility. However, faults in these systems can seriously compromise safety, making Fault Tolerant...