Zhejiang University Press

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Ka-band broadband filtering packaging antenna based on through-glass vias (TGVs)
Zhejiang University Press - - 2023
Zhen Fang, Jihua Zhang, Libin Gao, Hongwei Chen, Wenlei Li, Tianpeng Liang, Xudong Cai, Xingzhou Cai, Weicong Jia, Huan Guo, Yong Li
This work presents a novel design of Ka-band (33 GHz) filtering packaging antenna (FPA) that features broadband and great filtering response, and is based on glass packaging material and through-glass via (TGV) technologies. Compared to traditional packaging materials (printed circuit board, low temperature co-fired ceramic, Si, etc.), TGVs are more suitable for miniaturization (millimeter-wave th...... hiện toàn bộ
Ensemble enhanced active learning mixture discriminant analysis model and its application for semi-supervised fault classification
Zhejiang University Press - - 2022
Weijun Wang, Yun Wang, Jun Wang, Xinyun Fang, Yuchen He
Crowdsourcing intelligent design
Zhejiang University Press - Tập 19 - Trang 126-138 - 2018
Wei Xiang, Ling-yun Sun, Wei-tao You, Chang-yuan Yang
Design intelligence, namely, artificial intelligence to solve creative problems and produce creative ideas, has improved rapidly with the new generation artificial intelligence. However, existing methods are more skillful in learning from data and have limitations in creating original ideas different from the training data. Crowdsourcing offers a promising method to produce creative designs by com...... hiện toàn bộ
On observability of Galois nonlinear feedback shift registers over finite fields
Zhejiang University Press - Tập 23 - Trang 1533-1545 - 2022
Zhe Gao, Jun’e Feng, Yongyuan Yu, Yanjun Cui
Observability ensures that any two distinct initial states can be uniquely determined by their outputs, so the stream ciphers can avoid unobservable nonlinear feedback shift registers (NFSRs) to prevent the occurrence of equivalent keys. This paper discusses the observability of Galois NFSRs over finite fields. Galois NFSRs are treated as logical networks using the semi-tensor product. The vector ...... hiện toàn bộ
Ball-disk rotor gyroscope adaptive quick-start technique
Zhejiang University Press - Tập 18 - Trang 1430-1436 - 2017
Xiao-wei Liu, Rui Weng, Hai Li, Hai-feng Zhang
Rotating speed is a critical parameter affecting the performance of rotor gyroscopes. Rotor gyroscopes must operate at the rated rotating speed. To shorten the start time of the ball-disk rotor gyroscope, this paper presents a new design of the drive system for a ball-disk rotor gyroscope. The drive system is monitored by a microcontroller. First, the microcontroller generates a sine pulse width m...... hiện toàn bộ
A platform of digital brain using crowd power
Zhejiang University Press - Tập 19 - Trang 78-90 - 2018
Dongrong Xu, Fei Dai, Yue Lu
A powerful platform of digital brain is proposed using crowd wisdom for brain research, based on the computational artificial intelligence model of synthesis reasoning and multi-source analogical generating. The design of the platform aims to make it a comprehensive brain database, a brain phantom generator, a brain knowledge base, and an intelligent assistant for research on neurological and psyc...... hiện toàn bộ
A general altitude-dependent path loss model for UAV-to-ground millimeter-wave communications
Zhejiang University Press - Tập 22 - Trang 767-776 - 2021
Qiuming Zhu, Mengtian Yao, Fei Bai, Xiaomin Chen, Weizhi Zhong, Boyu Hua, Xijuan Ye
A general empirical path loss (PL) model for air-to-ground (A2G) millimeter-wave (mmWave) channels is proposed in this paper. Different from existing PL models, the new model takes the height factor of unmanned aerial vehicles (UAVs) into account, and divides the propagation conditions into three cases (i.e., line-of-sight, reflection, and diffraction). A map-based deterministic PL prediction algo...... hiện toàn bộ
Neuro-heuristic computational intelligence for solving nonlinear pantograph systems
Zhejiang University Press - Tập 18 - Trang 464-484 - 2017
Abdul Majid Wazwaz, Muhammad Asif Zahoor Raja, Muhammed Ibrahem Syam, Iftikhar Ahmad, Imtiaz Khan
We present a neuro-heuristic computing platform for finding the solution for initial value problems (IVPs) of nonlinear pantograph systems based on functional differential equations (P-FDEs) of different orders. In this scheme, the strengths of feed-forward artificial neural networks (ANNs), the evolutionary computing technique mainly based on genetic algorithms (GAs), and the interior-point techn...... hiện toàn bộ
Designing a novel consensus protocol for multiagent systems with general dynamics under directed networks
Zhejiang University Press - Tập 18 - Trang 1071-1081 - 2017
Hao-liang Li, Ren-nong Yang, Qiu-ni Li
The consensus problem for general linear multi-agent systems (MASs) under directed topology is investigated. First, a novel consensus protocol based on proportional-integral-derivative (PID) control is proposed. Second, the consensus problem is converted into an asymptotic stability problem through transformations. Third, through a state projection method the consensus condition is proved and the ...... hiện toàn bộ
Robust mismatched filtering algorithm for passive bistatic radar using worst-case performance optimization
Zhejiang University Press - - 2020
Gang Chen, Jun Wang
Tổng số: 798   
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