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Sliding mode corrector for jet UAV control (2023)
Journal Article
Wang, X. (2024). Sliding mode corrector for jet UAV control. Aeronautical Journal, 128(1319), 37-72. https://doi.org/10.1017/aer.2023.29

A sliding mode corrector is presented for disturbance rejection in position sensing using relatively accurate velocity measurement. The corrector design is based on a robust second-order sliding mode (2-sliding mode), which makes the fusion of positi... Read More about Sliding mode corrector for jet UAV control.

A Highly Customizable and Efficient Hardware Implementation for Parallel Matrix Inversion (2022)
Conference Proceeding
Alqahtani, S., Zhu, Y., Shi, Q., Meng, X., & Wang, X. (2022). A Highly Customizable and Efficient Hardware Implementation for Parallel Matrix Inversion. In 2022 International Conference on Field-Programmable Technology (ICFPT). https://doi.org/10.1109/ICFPT56656.2022.9974569

This paper introduces an efficient and customizable FPGA-based architecture for parallel matrix inversion. The capability of the proposed customizable architecture to adapt to different matrix sizes with low latency and effective resource utilization... Read More about A Highly Customizable and Efficient Hardware Implementation for Parallel Matrix Inversion.

Signal corrector and decoupling estimations for UAV control (2022)
Journal Article
Wang, X. (2022). Signal corrector and decoupling estimations for UAV control. Aeronautical Journal, 127(1311), 796-817. https://doi.org/10.1017/aer.2022.86

For a class of uncertain systems with large-error sensing, the low-order stable signal corrector and observer are presented for signal correction and uncertainty estimation according to completely decoupling estimation. The model-free signal correcto... Read More about Signal corrector and decoupling estimations for UAV control.

Whole-Genome Resequencing of Worldwide Wild and Domestic Sheep Elucidates Genetic Diversity, Introgression, and Agronomically Important Loci (2021)
Journal Article
Lv, F., Cao, Y., Liu, G., Luo, L., Lu, R., Liu, M., …Li, M. (2022). Whole-Genome Resequencing of Worldwide Wild and Domestic Sheep Elucidates Genetic Diversity, Introgression, and Agronomically Important Loci. Molecular Biology and Evolution, 39(2), Article msab353. https://doi.org/10.1093/molbev/msab353

Domestic sheep and their wild relatives harbor substantial genetic variants that can form the backbone of molecular breeding, but their genome landscapes remain understudied. Here, we present a comprehensive genome resource for wild ovine species, la... Read More about Whole-Genome Resequencing of Worldwide Wild and Domestic Sheep Elucidates Genetic Diversity, Introgression, and Agronomically Important Loci.

Hardware Implementations with High Throughput, Low-Latency and Low-Area for Matrix Inversion (2020)
Conference Proceeding
Alqahtani, S., Zhu, Y., Shi, Q., Meng, X., & Wang, X. (2020). Hardware Implementations with High Throughput, Low-Latency and Low-Area for Matrix Inversion. In 2020 International Conference on Field-Programmable Technology (ICFPT) (250-255). https://doi.org/10.1109/ICFPT51103.2020.00043

This paper proposes two hardware architectures for matrix inversion, through the use of single and double-precision floating-point representations. The architectures use a modified version of the Gauss-Jordan algorithm that accelerates the processing... Read More about Hardware Implementations with High Throughput, Low-Latency and Low-Area for Matrix Inversion.

Design and analysis of stable differentiator-predictor (2020)
Journal Article
Wang, X. (2022). Design and analysis of stable differentiator-predictor. International Journal of Control, 95(5), 1228-1250. https://doi.org/10.1080/00207179.2020.1847326

In this paper, the phase lead by the general phase-lead compensator is analysed, and a criterion of its parameters selection is proposed. In order to get the relatively large time-interval prediction for stochastic signal, two types of differentiator... Read More about Design and analysis of stable differentiator-predictor.

Extended signal-correction observer and application to aircraft navigation (2019)
Journal Article
Wang, X., & Wang, W. (2019). Extended signal-correction observer and application to aircraft navigation. IEEE Transactions on Industrial Electronics, 67(4), 3149-3156. https://doi.org/10.1109/tie.2019.2912782

An extended signal-correction observer (ES-CO) is presented for signals correction and estimation, which not only can reject the large measurement error, but also the system uncertainty can be estimated, in spite of the existence of intense stochasti... Read More about Extended signal-correction observer and application to aircraft navigation.

Nonlinear Signal-Correction Observer and Application to UAV Navigation (2018)
Journal Article
Wang, X., & Wang, W. (2019). Nonlinear Signal-Correction Observer and Application to UAV Navigation. IEEE Transactions on Industrial Electronics, 66(6), 4600-4607. https://doi.org/10.1109/TIE.2018.2860540

© 2018 IEEE. In this paper, a nonlinear signal-correction observer (NSCO) is presented for signals correction and estimation, which not only can reject the position measurement error, but also the unknown velocity can be estimated, in spite of the ex... Read More about Nonlinear Signal-Correction Observer and Application to UAV Navigation.

Aircraft navigation based on differentiation–integration observer (2017)
Journal Article
Wang, X., & Cai, L. (2017). Aircraft navigation based on differentiation–integration observer. Aerospace Science and Technology, 68, https://doi.org/10.1016/j.ast.2017.05.007

In this paper, a generalized differentiation–integration observer is presented based on sensors selection. The proposed differentiation–integration observer can estimate the multiple integrals and high-order derivatives of a signal, synchronously. Th... Read More about Aircraft navigation based on differentiation–integration observer.

Navigation and control based on integral-uncertainty observer for unmanned jet aircraft (2017)
Journal Article
Wang, X., & Cai, L. (in press). Navigation and control based on integral-uncertainty observer for unmanned jet aircraft. IEEE Transactions on Aerospace and Electronic Systems, https://doi.org/10.1109/TAES.2017.2668078

A nonlinear integral-uncertainty observer is presented, which can estimate the integral of measurement output signal and the uncertainty in system, synchronously. In order to be satisfied with the existing hardware computational environments and to s... Read More about Navigation and control based on integral-uncertainty observer for unmanned jet aircraft.