Journal Paper (Research about dynamic quantizers)

[13] H. Okajima, Y. Minami and N. Matsunaga：A Control Structure for Unilateral System with Communication Rate Constraint, SICE JCMSI, Vol. 11, No. 6, pp. 510-516（2018） (T&F, Open Access)

[11] H. Okajima, K. Sawada and N. Matsunaga：Dynamic Quantizer Design Under Communication Rate Constraints, IEEE Transactions on Automatic Control, Vol.61, No.10, pp.3190-3196 (2016) Github (MATLABcode) , PDF

[10] G. Koutaki, H. Okajima, N. Matsunaga and K. Uchimura：Color quantization and optimization of luminance for digital mirror device–based projector, IEEE transactions on Consumer Electronics, Vol.62, No.2, pp.103-110 (2016)

[8] H. Okajima, M. Honda, R. Yoshino and N. Matsunaga：A Design Method of Delta-Sigma Data Conversion System with Pre-Filter, SICE Journal of Control, Measurement, and System Integration Vol.8, No.2, pp.154-160 (2015) (T&F, Open Access)

International conference paper

[55] Hiroshi Okajima, Yohei Hosoe, Tomomichi Hagiwara and Yuki Minami, Basic Idea of Periodically Time-Varying Dynamic Quantizer in Networked Control Systems, Proceedings of the SICE Annual Conference 2019, pp.883-889 (2019)Finalist of the poster presentation award

[46] Yuki Saigo, Hiroshi Okajima, Nobutomo Matsunaga, Design of networked control for multiple inputs and outputs feedback control system, Proceedings of the SICE Annual Conference 2018, pp.1423-1428 (2018)

[41] K. Inomoto, H. Okajima, G. Koutaki, N. Matsunaga and K. Uchimura：Method for designing a quantized image for digital micromirror device-based projectors using a weighted evaluation function, Proceedings of the SICE Annual Conference 2017Finalist of the young author award

[37] H. Okajima, Y. Minami and N. Matsunaga：Unilateral Control Structure Under Communication Rate Constraint, Proceedings of NecSys 2016 (6pages) (2016)

[33] G. Koutaki, H.Okajima, N. Matsunaga and K.Uchimura：Optimization of color quantization with total luminance for DLP projector and its evaluation system, ICIP2015

[30] H. Okajima, M. Honda, R. Yoshino and N. Matsunaga：A design method of delta-sigma data conversion system with pre-filter, SICE Annual Conference 2014, pp.1388-1394, (2014.9)

[29] R. Yoshino, H. Okajima, N. Matsunaga and Y. Minami：Dynamic quantizers design under data rate constraints by using PSO method, SICE Annual Conference 2014, pp.1041-1046, (2014.9)

[21] K. Sawada, H. Okajima, N. Matsunaga and Y. Minami：Dynamic quantizer design for MIMO systems based on communication rate constraint, IECON 2011, 2011.11.

[17] H. Okajima, K. Sawada and N. Matsunaga：Integrated Design of Filter and Interval in Dynamic Quantizer under Communication Rate Constraint, The 18th IFAC World Congress, 2011.8.

[15] H. Okajima, N. Matsunaga and K. Sawada：Optimal quantization interval design of dynamic quantizers which satisfy the communication rate constraints, Proc. of the IEEE Conference on Decision and Control 2010, 2010.12.

[14] N. Matsunaga, K. Sasano and H. Okajima：An implementation of fractional-order PID controller with dynamic quantizer considering the memory constraint, Proc. of the IEEE Multi-conference on Systems and Control 2010, 2010.9.

[8] H. Okajima, T. Umemoto, N. Matsunaga and S. Kawaji：Analysis of dynamic quantizer in 2-DOF Internal Model Control system with dead-time, Proc. of ICROS-SICE International Joint Conference 2009, pp.4380-4383, 2009.8.

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