Zobrazeno 1 - 10
of 246
pro vyhledávání: '"Richard W. Longman"'
Publikováno v:
IEEE Access, Vol 7, Pp 149857-149866 (2019)
Repetitive control is an effective method to eliminate the effects of a periodic disturbance on a control system. In some applications the period is not known with sufficient accuracy, or the period may fluctuate sufficiently to seriously compromise
Externí odkaz:
https://doaj.org/article/74f34d4444c841f8a68698ba52a76c31
Autor:
Xiaoyu Zhang, Richard W. Longman
Publikováno v:
IEEE Transactions on Neural Networks and Learning Systems. 33:4346-4360
This article studied the stability and convergence of a robust iterative learning control (ILC) design for a class of nonlinear systems with unknown control input delay. First, the iterative integral sliding mode (IISM) design was proposed, which com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3aa0a382b2fe21099e6ce212ad334743
https://doi.org/10.1109/tnnls.2021.3056680
https://doi.org/10.1109/tnnls.2021.3056680
Autor:
Jer-Nan Juang, Richard W. Longman
Publikováno v:
The Journal of the Astronautical Sciences. 69:1115-1148
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::502d69fedb7235dd2c49e063772d0294
https://doi.org/10.1007/s40295-022-00324-0
https://doi.org/10.1007/s40295-022-00324-0
Publikováno v:
The Journal of the Astronautical Sciences. 68:916-945
Repetitive control (RC) aims to achieve zero error from a feedback control system that is subject to a periodic disturbance of known period, or that is executing a periodic command. It can be used in spacecraft for jitter mitigation, for creating act
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03ffdb802d65ff59c99121a1b8ebcc0b
https://doi.org/10.1007/s40295-021-00276-x
https://doi.org/10.1007/s40295-021-00276-x
Autor:
Richard W. Longman, Jer-Nan Juang
Publikováno v:
The Journal of the Astronautical Sciences. 68:677-694
Basic learning control law designs are summarized, and conditions for convergence of the learning process are developed when several different choices of filter frequency cutoffs are used for robustification. This paper presents a cliff harmonic-freq
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b98038fe9019cabd3fd4d4dcf21d8d7
https://doi.org/10.1007/s40295-021-00273-0
https://doi.org/10.1007/s40295-021-00273-0
Publikováno v:
International Journal of Robust and Nonlinear Control. 31:5188-5217
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ea21e71d282d378db12e7264e6cb2fe5
https://doi.org/10.1002/rnc.5539
https://doi.org/10.1002/rnc.5539
Publikováno v:
The Journal of the Astronautical Sciences. 67:571-594
Steady state frequency response is a major design approach in control theory, and is normally used to obtain reasonable response to commands up to a chosen or obtainable bandwidth. By contrast, iterative learning control (ILC) aims to converge to zer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3fb063c27e8fd741ea4d89f4a3664f7
https://doi.org/10.1007/s40295-019-00198-9
https://doi.org/10.1007/s40295-019-00198-9
Publikováno v:
The Journal of the Astronautical Sciences. 67:794-813
This paper presents a solution to the state-space system identification problem from discrete-time data without a hold device on the input. We consider the case where the inter-sampled input is approximated by 4-point Lagrange interpolation. The resu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::efec4e32336c258396c5f513ea0d1312
https://doi.org/10.1007/s40295-019-00197-w
https://doi.org/10.1007/s40295-019-00197-w
Autor:
Richard W. Longman, Wenxiang Zhou
Publikováno v:
The Journal of the Astronautical Sciences. 67:164-187
Root locus plots are one of the basic design tools in classical control. They help the designer tune control gains which appear linearly in the coefficients of the closed loop characteristic polynomial. And they give considerable intuition to the des
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::85bb056e9edec4205b004cb9aa047945
https://doi.org/10.1007/s40295-019-00164-5
https://doi.org/10.1007/s40295-019-00164-5
Publikováno v:
IEEE Access, Vol 7, Pp 149857-149866 (2019)
Repetitive control is an effective method to eliminate the effects of a periodic disturbance on a control system. In some applications the period is not known with sufficient accuracy, or the period may fluctuate sufficiently to seriously compromise
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2e04ae3daa15936639e100b0a122a459
https://ieeexplore.ieee.org/document/8869767/
https://ieeexplore.ieee.org/document/8869767/