Longhua Ma
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Previous Organizations / Institutes
The organizations / institutes from the scholar's other articles in the past ten years
Longhua Ma has a total of 11 co-authors. Here are the top co-authors by number of shared publications:
Hongye Su
Department of Control Science and Engineering, Zhejiang University, Hangzhou 310027, China
2 shared publications- Chao Hu
College of Computer Science, Sichuan University,China
1 shared publication Jieyu Zhao
Faculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo 315100, China
1 shared publicationLang Wang
College of Information Science and Engineering, Ningbo Institute of Technology, Zhejiang University , Ningbo, China
1 shared publicationMiao Huang
Institute of Cyber-Systems and Control, Zhejiang University , Hangzhou, China
1 shared publicationWeiming Cai
Faculty of Information Science and Engineering, NingboTech University, Ningbo 315100, China
1 shared publication
Latest Publications
- 1 April 2021
- Published by American Scientific Publishers in Journal of Nanoelectronics and Optoelectronics
- Vol. 16 (4) , 528-533
High-Performance Current-Mode Logic Ternary D Flip-Flop Based on Bipolar Complementary Metal Oxide Semiconductor
In this paper, a simple-structured and high-performance current-mode logic (CML) ternary D flip-flop based on BiCMOS is proposed. It combines both advantages of BiCMOS and CML circuits, which is with much more high-speed, strong-drive and anti-interference abilities. Utilizing TSMC 180 nm process, results of simulations carried out by HSPICE illustrate the proposed circuit not only has correct logic function, but also gains improvements of 95.6~98.4% in average D-Q delay and 16.2%~70.4 in PDP compared with advanced ternary D flip-flop. When compared at the same information transmission speed, proposed circuit is more competitive. Furthermore, it can perform up to high frequency of 15 GHz and drive heavier load. All the results prove that proposed circuit is high-performance and very suitable for high-speed and high-frequency applications.
- 1 April 2021
- Published by American Scientific Publishers in Journal of Nanoelectronics and Optoelectronics
- Vol. 16 (4) , 528-533
High-Performance Current-Mode Logic Ternary D Flip-Flop Based on Bipolar Complementary Metal Oxide Semiconductor
In this paper, a simple-structured and high-performance current-mode logic (CML) ternary D flip-flop based on BiCMOS is proposed. It combines both advantages of BiCMOS and CML circuits, which is with much more high-speed, strong-drive and anti-interference abilities. Utilizing TSMC 180 nm process, results of simulations carried out by HSPICE illustrate the proposed circuit not only has correct logic function, but also gains improvements of 95.6~98.4% in average D-Q delay and 16.2%~70.4 in PDP compared with advanced ternary D flip-flop. When compared at the same information transmission speed, proposed circuit is more competitive. Furthermore, it can perform up to high frequency of 15 GHz and drive heavier load. All the results prove that proposed circuit is high-performance and very suitable for high-speed and high-frequency applications.
- Open Access
- 1 January 2019
- Published by EJournal Publishing in International Journal of Information and Education Technology
- Vol. 9 (10) , 735-740
A Construction Method of MOOC Courses in Colleges and Universities
- 1 January 2019
- Published by EJournal Publishing in International Journal of Information and Education Technology
- Vol. 9 (10) , 735-740
Open AccessA Construction Method of MOOC Courses in Colleges and Universities
- 30 January 2018
- Published by Taylor & Francis in International Journal of Control
- Vol. 92 (9) , 2064-2076
Multiple model adaptive control for a class of nonlinear systems with unknown control directions
This study introduces an improved multiple model adaptive control (MMAC) algorithm for a class of nonlinear discrete-time systems. The controller consists of a linear direct adaptive controller, a neural network-based nonlinear direct adaptive controller and a switching mechanism. The assumption of the nonlinear term is relaxed by incorporating a parameter estimator with an augmented error. The control direction of the system is not required to be known by employing a linear direct adaptive controller with the discrete Nussbaum gain and future output predictions. The stability of the closed-loop systems applying the proposed MMAC method is proved and the improved transient performance of the system is illustrated by the simulation results.
- 30 January 2018
- Published by Taylor & Francis in International Journal of Control
- Vol. 92 (9) , 2064-2076
Multiple model adaptive control for a class of nonlinear systems with unknown control directions
This study introduces an improved multiple model adaptive control (MMAC) algorithm for a class of nonlinear discrete-time systems. The controller consists of a linear direct adaptive controller, a neural network-based nonlinear direct adaptive controller and a switching mechanism. The assumption of the nonlinear term is relaxed by incorporating a parameter estimator with an augmented error. The control direction of the system is not required to be known by employing a linear direct adaptive controller with the discrete Nussbaum gain and future output predictions. The stability of the closed-loop systems applying the proposed MMAC method is proved and the improved transient performance of the system is illustrated by the simulation results.