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ORCIDHiroshi Okajima
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Journal Articles
- 2023
[j11]Hiroshi Okajima
, Yohei Hosoe, Tomomichi Hagiwara:
State Observer Under Multi-Rate Sensing Environment and Its Design Using l2-Induced Norm. IEEE Access 11: 20079-20087 (2023)- [j10]Hiroshi Okajima, Kenta Arinaga, Atsuo Hayashida:
Design of Observer-Based Feedback Controller for Multi-Rate Systems With Various Sampling Periods Using Cyclic Reformulation. IEEE Access 11: 121956-121965 (2023) - [j9]Yuki Minami, Hiroshi Okajima, Kenji Sawada, Kazuma Sekiguchi:
Special Issue on Navigation and Control Technologies for Autonomous Mobility. J. Robotics Mechatronics 35(2): 229-230 (2023) - [j8]Nobutomo Matsunaga, Ikuo Yamamoto, Hiroshi Okajima:
Navigation System for Personal Mobility Vehicles Following a Cluster of Pedestrians in a Corridor Using Median of Candidate Vectors Observer. J. Robotics Mechatronics 35(6): 1562-1572 (2023) - [j7]Nobutomo Matsunaga, Kazuhi Murata, Hiroshi Okajima:
Robust Cooperative Transport System with Model Error Compensator Using Multiple Robots with Suction Cups. J. Robotics Mechatronics 35(6): 1583-1592 (2023) - 2022
- [j6]Nobutomo Matsunaga, Masaki Kuwahara, Hiroshi Okajima, Gou Koutaki:
Analysis of Measuring Precision of 3D Model of Ishigaki Stone in Kumamoto Castle Using Automatic CMG Crane System. J. Robotics Mechatronics 34(3): 622-630 (2022) - 2016
- [j5]Hiroshi Okajima, Kenji Sawada, Nobutomo Matsunaga:
Dynamic Quantizer Design Under Communication Rate Constraints. IEEE Trans. Autom. Control. 61(10): 3190-3196 (2016) - [j4]Gou Koutaki, Hiroshi Okajima, Nobutomo Matsunaga, Keiichi Uchimura:
Color quantization and optimization of luminance for digital mirror device-based projector. IEEE Trans. Consumer Electron. 62(2): 103-110 (2016) - 2014
- [j3]Nobutomo Matsunaga, Shota Miyaguchi, Hiroshi Okajima, Shigeyasu Kawaji:
Impedance Control of Two d.o.f. CPM Device for Elbow Joint. J. Robotics Mechatronics 26(4): 518 (2014) - 2011
- [j2]Nobutomo Matsunaga, Aydin Tarik Zengin, Hiroshi Okajima, Shigeyasu Kawaji:
Emulation of Fast and Slow Pains Using Multi-Layer Sensor Modeled the Layered Structure of Human Skin. J. Robotics Mechatronics 23(1): 173-179 (2011) - [j1]Hiroshi Okajima, Toru Asai:
Performance Limitation of Tracking Control Problem for a Class of References. IEEE Trans. Autom. Control. 56(11): 2723-2727 (2011)
Conference and Workshop Papers
- 2022
- [c21]Ikuo Yamamoto, Kouich Nakamura, Nobutomo Matsunaga, Hiroshi Okajima:
Crowd Tracking of Electric Wheelchair using RGB-D Camera with Median of Candidate Vectors Observer. SICE 2022: 174-178 - 2020
- [c20]Yusuke Take, Shin-ya Tokunaga, Hiroshi Okajima, Nobutomo Matsunaga:
A Proposal of Collation Method Using Nonlinear SVM for Restoration of Stone Wall in Kumamoto Castle. SICE 2020: 888-893 - [c19]Ryuichiro Yoshida, Yuki Tanigawa, Hiroshi Okajima, Nobutomo Matsunaga:
A Design Method of Model Error Compensator using Meta-Heuristics and LMIs. SICE 2020: 1150-1155 - 2019
- [c18]Nobutomo Matsunaga, Naufal Bayu Fauzan, Hiroshi Okajima, Gou Koutaki:
Archive Method of Stone Wall in Kumamoto Castle Lifted by Small CMG Crane using Model Error Compensator. ASCC 2019: 510-514 - [c17]Nobutomo Matsunaga, Yudai Takeuchi, Hiroshi Okajima:
Driver's Gaze-point Analysis of Virtual Platoon Driving for Welfare Vehicle using Direct Eye Measurement Device with HMD. ASCC 2019: 856-860 - [c16]Hiroshi Okajima, Yasuaki Kaneda, Nobutomo Matsunaga:
State Estimation By Observer Using Median Operation for Observed Output with Outliers. SICE 2019: 877-882 - [c15]Hiroshi Okajima, Yohei Hosoe, Tomomichi Hagiwara, Yuki Minami:
Basic Idea of Periodically Time-Varying Dynamic Quantizer in Networked Control Systems. SICE 2019: 883-889 - [c14]Yusuke Take, Hiroshi Okajima, Gou Koutaki, Nobutomo Matsunaga:
Restoration of Stone Wall "ISHIGAKI" Using Dropposition Information. SICE 2019: 976-981 - [c13]Shizuku Kai, Minori Watanabe, Hiroshi Okajima:
Dynamics modeling of necessary quantity of relief supplies in large-scale disasters. SICE 2019: 1044-1049 - 2018
- [c12]Nobutomo Matsunaga, Ryota Kimura, Haruya Ishiguro, Hiroshi Okajima:
Driving Assistance of Welfare Vehicle with Virtual Platoon Control Method which has Collision Avoidance Function Using Mixed Reality. SMC 2018: 1915-1920 - [c11]Yuta Nakabayashi, Hiroshi Okajima, Nobutomo Matsunaga:
Inter-Vehicle Distance Stabilization in Adaptive Cruise Control Using Signal Limitation Filter. SMC 2018: 1989-1994 - 2016
- [c10]Jecinta Kamau, Ashir Ahmed, Andrew Rebeiro-Hargrave, Hironobu Kitaoka, Hiroshi Okajima, Zahidul Hossein Ripon:
Demand Responsive Mobility as a Service. SMC 2016: 1741-1746 - [c9]Nuren Abedin, Jecinta Kamau, Hironobu Kitaoka, Hiroshi Okajima, Masaharu Okada, Akira Fukuda, Ashir Ahmed:
Providing safe and affordable transportation to reduce female students dropout: A case study on college girls in rural Bangladesh. SMC 2016: 4130-4134 - 2015
- [c8]Hiroshi Okajima, Toru Asai, Nobutomo Matsunaga:
Disturbance rejection performance limit for a class of disturbance signals. CDC 2015: 2702-2706 - [c7]Gou Koutaki, Hiroshi Okajima, Nobutomo Matsunaga, Keiichi Uchimura:
Optimization of color quantization with total luminance for DLP projector and its evaluation system. ICIP 2015: 38-42 - [c6]Tatsuya Sugano, Hiroshi Okajima, Nobutomo Matsunaga:
Robust and precise platoon driving control of welfare vehicles along wheel track by using model error compensator. IECON 2015: 256-261 - 2014
- [c5]Jecinta Kamau, Andrew Rebeiro-Hargrave, Emran Abdullah, Rafiqul Islam Maruf, Kunihiro Nobuhara, Hiroshi Okajima, Ashir Ahmed:
Villager centered transport system in unreached communities. SMC 2014: 1893-1897 - 2010
- [c4]Nobutomo Matsunaga, Koji Sasano, Hiroshi Okajima:
An Implementation of Fractional-order PID Controller with Dynamic Quantizer Considering the Memory Constraint. CCA 2010: 2409-2414 - [c3]Hiroshi Okajima, Nobutomo Matsunaga, Kenji Sawada:
Optimal quantization interval design of dynamic quantizers which satisfy the communication rate constraints. CDC 2010: 4733-4739 - 2009
- [c2]Hiroshi Okajima, Toru Asai, Shigeyasu Kawaji:
Unified form of performance limitations in reference tracking control problem for discrete time systems. CDC 2009: 4011-4017 - 2008
- [c1]Hiroshi Okajima, Toru Asai:
Performance limitation of tracking control problem for a class of references. CDC 2008: 3694-3699
Informal and Other Publications
- 2024
- [i1]Hiroshi Okajima, Yusuke Fujimoto, Hiroshi Oku, Haruto Kondo:
Cyclic Reformulation Based System Identification for Periodically Time-varying Systems. CoRR abs/2411.00318 (2024)
Coauthor Index
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