Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Zhengdong Qi"'
Autor:
Zhengdong Qi, Xinggan Zhang, Yechao Bai, Qiong Wang, Chunhua Yu, Hao Chen, Yangyi Lu, Shaopeng Wu
Publikováno v:
IET Microwaves, Antennas & Propagation, Vol 15, Iss 8, Pp 885-903 (2021)
Abstract An approach for the synthesis of sum and difference patterns in monopulse antennas is described. The proposed approach provides a significant reduction in the complexity of the beam‐forming network that is fulfilled by reducing the number
Externí odkaz:
https://doaj.org/article/086494d82d904c068084b6e7a027e033
Publikováno v:
Journal of Marine Science and Engineering, Vol 11, Iss 4, p 869 (2023)
The relative contribution of atmospheric forcing, oceanic preconditioning, and sea ice to Labrador Sea Deep Convection (LSDC) is investigated by conducting three ensemble experiments using a global coupled sea ice–ocean model for the first time. Si
Externí odkaz:
https://doaj.org/article/e1e59b0a39b0456f92a758affc4b4379
Publikováno v:
IEEE Access, Vol 8, Pp 6717-6728 (2020)
In this paper, an iterative procedure for the synthesis of sparse arrays radiating focused beampattern is presented. The proposed approach provides a significant reduction in the complexity of the beam forming network, which is fulfilled by reducing
Externí odkaz:
https://doaj.org/article/afa655125fb94d5cac94b4f05bd3c1b2
Autor:
Liangliang Li, Jie Chen, Chen Ma, Hewei Meng, Jiangtao Qi, Yaping Li, Peixin Zhang, Guodang Lian, Zhengdong Qi
Publikováno v:
Applied Sciences, Vol 11, Iss 24, p 12058 (2021)
In order to solve the problems of serious soil reflux and poor stability of ditch depth in the existing ditching organic fertilizer fertilization device in grey desert and loess orchards, rotary tillage theory and software simulation were used to con
Externí odkaz:
https://doaj.org/article/01772216e0ca482c8fd4118d8f42a337
Publikováno v:
The Journal of Engineering (2019)
A hybrid approach to the synthesis of sparse arrays radiating shaped or focused beampattern is presented in this paper. Specifically, an iterative scheme is used where the prescribed pattern response in the mainlobe peak direction is cast as a multi-
Externí odkaz:
https://doaj.org/article/4227483bc9e84fd889f18e416a472227
Publikováno v:
E3S Web of Conferences, Vol 189, p 02028 (2020)
As the key component of mechanical picking device of marigold flower, the structure, size, strength and motion of comb are closely related to the reliability and the rate of picking. In this paper, a mechanical comb for marigold based on bionic finge
Externí odkaz:
https://doaj.org/article/8784d41c6ca94ef8b6368595e099ffb0
Autor:
Shaopeng Wu, Yechao Bai, Zhengdong Qi, Qiong Wang, Xinggan Zhang, Hao Chen, Chunhua Yu, Yangyi Lu
Publikováno v:
IET Microwaves, Antennas & Propagation, Vol 15, Iss 8, Pp 885-903 (2021)
An approach for the synthesis of sum and difference patterns in monopulse antennas is described. The proposed approach provides a significant reduction in the complexity of the beam‐forming network that is fulfilled by reducing the number of array
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3523e319bb40cca017bac609433bdac2
https://doi.org/10.1049/mia2.12104
https://doi.org/10.1049/mia2.12104
Publikováno v:
IET Radar, Sonar & Navigation. 14:1125-1134
A new approach for the synthesis of one-dimensional (1D) and 2D reconfigurable sparse arrays generating sum and difference power patterns is presented in this study. In the case of 1D arrays, the design procedure provides solutions in which only one
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::861144b1f49c3b2c938f8b884840d1c4
https://doi.org/10.1049/iet-rsn.2019.0236
https://doi.org/10.1049/iet-rsn.2019.0236
Publikováno v:
Journal of Electromagnetic Waves and Applications. 34:183-200
In this paper, a new array synthesis approach is developed for the design of reconfigurable sparse arrays radiating sum and difference patterns. The proposed approach provides a significant...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c64e9124b3a1ff3efe649976933c7280
https://doi.org/10.1080/09205071.2019.1693910
https://doi.org/10.1080/09205071.2019.1693910