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Robust generalized sidelobe canceller based on eigenanalysis and a MaxSINR beamformer Research Articles

Quan-dong WANG, Liang-hao GUO, Wei-yu ZHANG, Sui-ling REN, Chao YAN

Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 7,   Pages 975-987 doi: 10.1631/FITEE.1700367

Abstract:

A robust generalized sidelobe canceller is proposed to combat direction of arrival (DOA) mismatchesoutput waveform SINR and correlation coefficients with the desired signal in the presence of a DOA mismatch

Keywords： Maximum signal-to-interference-plus-noise ratio criterion     Blocking matrix     Generalized sidelobe canceller     Directionof arrival mismatch    

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Taylor expansion MUSIC method for joint DOD and DOA estimation in a bistatic MIMO array Research Papers

Wen-tao SHI, Qun-fei ZHANG, Cheng-bing HE, Jing HAN

Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 6,   Pages 842-848 doi: 10.1631/FITEE.1700657

Abstract:

We propose a Taylor expansion multiple signal classification (TE MUSIC) method for joint directionof departure (DOD) and direction of arrival (DOA) estimation in a bistatic multiple-input multiple-output

Keywords： Bistatic multiple-input multiple-output array     Direction of departure     Direction of arrival     Multiple signal    

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An improved subspace weighting method using random matrix theory Research Articles

Yu-meng Gao, Jiang-hui Li, Ye-chao Bai, Qiong Wang, Xing-gan Zhang,ychbai@nju.edu.cn

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 9,   Pages 1302-1307 doi: 10.1631/FITEE.1900463

Abstract: The weighting subspace fitting (WSF) algorithm performs better than the multi-signal classification (MUSIC) algorithm in the case of low signal-to-noise ratio (SNR) and when signals are correlated. In this study, we use the (RMT) to improve WSF. RMT focuses on the asymptotic behavior of eigenvalues and eigenvectors of random matrices with dimensions of matrices increasing at the same rate. The approximative first-order perturbation is applied in WSF when calculating statistics of the eigenvectors of sample covariance. Using the asymptotic results of the norm of the projection from the sample covariance matrix onto the real signal in the , the method of calculating WSF is obtained. Numerical results are shown to prove the superiority of RMT in scenarios with few snapshots and a low SNR.

Keywords： Direction of arrival     Signal subspace     Random matrix theory    

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The Regularity of Time of Arrival in 90° Bend Tunnel for Shock Wave due to Explosions From High Explosive

Shen Jun,Li Yongchi,Pang Weibin

Strategic Study of CAE 2006, Volume 8, Issue 3,   Pages 53-57

Abstract: Through collecting data gained from 4 experiments, a formula was proposed which can compute time of arrival

Keywords： internal explosion     shock wave     time of arrival    

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The effects of mismatch fracture properties in encapsulation-based self-healing concrete using cohesive-zone

Luthfi Muhammad MAULUDIN, Chahmi OUCIF, Timon RABCZUK

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 3,   Pages 792-801 doi: 10.1007/s11709-020-0629-0

Abstract: This study focuses on the effects of mismatch fracture properties, namely fracture strength and energy

Keywords： self-healing concrete     interfacial zone     capsule materials     cohesive elements     fracture maps    

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Joint DOA and channel estimation with data detection based on 2D unitary ESPRITin massive MIMO systems Article

Jing-ming KUANG, Yuan ZHOU, Ze-song FEI

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 6,   Pages 841-849 doi: 10.1631/FITEE.1700025

Abstract: We propose a novel method for joint two-dimensional (2D) direction-of-arrival (DOA) and channel estimation

Keywords： Two-dimensional (2D) direction-of-arrival (DOA) estimation     Channel impulse response estimation     Data    

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Expression status of GATA3 and mismatch repair proteins in upper tract urothelial carcinoma

Yue Wang, Jinxia Zhang, Yunfan Wang, Shufang Wang, Yu Zhang, Qi Miao, Fei Gao, Huiying He

Frontiers of Medicine 2019, Volume 13, Issue 6,   Pages 730-740 doi: 10.1007/s11684-019-0687-7

Abstract: GATA binding protein 3 (GATA3) and mismatch repair (MMR) deficiency contribute to the development of

Keywords： upper tract urothelial carcinoma     GATA binding protein 3     mismatch repair     microsatellite instability     prognosis    

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Structural total least squares algorithm for locating multiple disjoint sources based on AOA/TOA/FOA in the presence of system error None

Xin CHEN, Ding WANG, Rui-rui LIU, Jie-xin YIN, Ying WU

Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 7,   Pages 917-936 doi: 10.1631/FITEE.1700735

Abstract: According to the available measurements including the angle-of-arrival (AOA), time-of-arrival (TOA),and frequency-of-arrival (FOA), the corresponding pseudo linear equations are deduced.

Keywords： Single-station     Structural total least squares     Inverse iteration     Angle-of-arrival (AOA)     Time-of-arrival(TOA)     Frequency-of-arrival (FOA)     Disjoint sources    

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Qualitative analysis of direction of public hospital reforms in China

Dahai Zhao, Zhiruo Zhang

Frontiers of Medicine 2018, Volume 12, Issue 2,   Pages 218-223 doi: 10.1007/s11684-017-0534-7

Abstract: Thus, a feasible direction of reforms in Chinese public hospitals is suggested and reliable policy suggestionsThe most crucial step in setting the direction of reforms in public hospitals in China is transforming

Keywords： public hospital     government hospital     public funding     operation mechanism    

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Biologically inspired model of path integration based on head direction cells and grid cells

Yang ZHOU,De-wei WU

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 5,   Pages 435-448 doi: 10.1631/FITEE.1500364

Abstract: The firing of head direction cells (HDCs) and grid cells (GCs) is related to the moving direction and

Keywords： Head direction cells (HDCs)     Grid cells (GCs)     Path integration     Bionic navigation    

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A two-echelon （S-1，S） inventory model for repairable items based on markovian arrival process

Chen Tong,Li Fang and Di Peng

Strategic Study of CAE 2015, Volume 17, Issue 5,   Pages 113-119

Abstract: repairable items and single repair facility， and assumes that the item demand occur according to a markovian arrival

Keywords： （S-1，S） policy；two-echelon inventory；repairable item；markovian arrival process    

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Passive source localization using importance sampling based on TOA and FOA measurements Article

Rui-rui LIU, Yun-long WANG, Jie-xin YIN, Ding WANG, Ying WU

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 8,   Pages 1167-1179 doi: 10.1631/FITEE.1601657

Abstract: can achieve a high accuracy but involves high calculation burdens, especially when based on time-of-arrivaland frequency-of-arrival measurements for its internal nonlinearity and nonconvex nature.

Keywords： Passive source localization     Time of arrival (TOA)     Frequency of arrival (FOA)     Monte Carlo importance    

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Digital manufacturing—the development direction of the manufacturing technology in the 21st century

XIONG You-lun, YIN Zhou-ping

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 2,   Pages 125-130 doi: 10.1007/s11465-006-0021-3

Abstract: After introducing the concepts of digital manufacturing technology, the discipline framework of digital manufacturing is presented in the paper by discussing its basic concept, theory foundation, key technology and scientific problems in detail. As the core of the advanced manufacturing technology, digital manufacturing is gradually becoming the main manufacturing technology of the twenty-first century. Firstly, the main features of digital manufacturing are indicated and its key supporting technologies are investigated by grouping them into four levels related to product development, numerical control, production management, and enterprise collaboration, respectively. Moreover, the existing problems in the research on the multi-discipline theory foundation of digital manufacturing such as manufacturing informatics, computational manufacturing, and manufacturing intelligence, are also indicated. Then, the core scientific problems of digital manufacturing are discussed in depth, which focuses on digitization of manufacturing information, modeling of manufacturing constraints, high-speed and high-precision numerical control theory, and Internet-based collaboration and integration. Lastly, the development trends and application perspectives of digital manufacturing are concluded.

Keywords： development     foundation     multi-discipline     scientific     supporting    

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Acoustic localization with multi-layer isogradient sound speed profile using TDOA and FDOA Research Article

Dongzhou ZHAN, Sitian WANG, Shougui CAI, Huarong ZHENG, Wen XU,wxu@zju.edu.cn

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 1,   Pages 164-175 doi: 10.1631/FITEE.2100398

Abstract: In the underwater medium, the speed of sound varies with water depth, temperature, and salinity. The inhomogeneity of water leads to bending of sound rays, making the existing localization algorithms based on straight-line propagation less precise. To realize high-precision node positioning in s (UASNs), a multi-layer isogradient (SSP) model is developed using the linear segmentation approximation approach. Then, the sound ray tracking problem is converted into a polynomial root-searching problem. Based on the derived gradient of the signal's Doppler shift at the sensor node, a novel underwater node localization algorithm is proposed using both the and . Simulations are implemented to illustrate the effectiveness of the proposed algorithm. Compared with the traditional straight-line propagation method, the proposed algorithm can effectively handle the sound ray bending phenomenon. Estimation accuracy with different SSP modeling errors is also investigated. Overall, accurate and reliable node localization can be achieved.

Keywords： Underwater acoustic sensor network     Acoustic localization     Sound speed profile     Time difference of arrival(TDOA)     Frequency difference of arrival (FDOA)    

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Land use/cover change effects on floods with different return periods: a case study of Beijing, China

Yueling WANG, Xiaoliu YANG

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 5,   Pages 769-776 doi: 10.1007/s11783-013-0542-z

Abstract: statistical methods was applied to quantify the effect of LUCC on floods in terms of inundation extent, flood arrivalof analysis Beijing experienced unprecedented LUCC; 2) LUCC can affect inundation extent and flood arrival

Keywords： inundation extent     flood arrival time     maximum water depth     shallow flow model    

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Title Author Date Type Operation

Robust generalized sidelobe canceller based on eigenanalysis and a MaxSINR beamformer

Quan-dong WANG, Liang-hao GUO, Wei-yu ZHANG, Sui-ling REN, Chao YAN

Journal Article

Taylor expansion MUSIC method for joint DOD and DOA estimation in a bistatic MIMO array

Wen-tao SHI, Qun-fei ZHANG, Cheng-bing HE, Jing HAN

Journal Article

An improved subspace weighting method using random matrix theory

Yu-meng Gao, Jiang-hui Li, Ye-chao Bai, Qiong Wang, Xing-gan Zhang,ychbai@nju.edu.cn

Journal Article

The Regularity of Time of Arrival in 90° Bend Tunnel for Shock Wave due to Explosions From High Explosive

Shen Jun,Li Yongchi,Pang Weibin

Journal Article

The effects of mismatch fracture properties in encapsulation-based self-healing concrete using cohesive-zone

Luthfi Muhammad MAULUDIN, Chahmi OUCIF, Timon RABCZUK

Journal Article

Joint DOA and channel estimation with data detection based on 2D unitary ESPRITin massive MIMO systems

Jing-ming KUANG, Yuan ZHOU, Ze-song FEI

Journal Article

Expression status of GATA3 and mismatch repair proteins in upper tract urothelial carcinoma

Yue Wang, Jinxia Zhang, Yunfan Wang, Shufang Wang, Yu Zhang, Qi Miao, Fei Gao, Huiying He

Journal Article

Structural total least squares algorithm for locating multiple disjoint sources based on AOA/TOA/FOA in the presence of system error

Xin CHEN, Ding WANG, Rui-rui LIU, Jie-xin YIN, Ying WU

Journal Article

Qualitative analysis of direction of public hospital reforms in China

Dahai Zhao, Zhiruo Zhang

Journal Article

Biologically inspired model of path integration based on head direction cells and grid cells

Yang ZHOU,De-wei WU

Journal Article

A two-echelon （S-1，S） inventory model for repairable items based on markovian arrival process

Chen Tong,Li Fang and Di Peng

Journal Article

Passive source localization using importance sampling based on TOA and FOA measurements

Rui-rui LIU, Yun-long WANG, Jie-xin YIN, Ding WANG, Ying WU

Journal Article

Digital manufacturing—the development direction of the manufacturing technology in the 21st century

XIONG You-lun, YIN Zhou-ping

Journal Article

Acoustic localization with multi-layer isogradient sound speed profile using TDOA and FDOA

Dongzhou ZHAN, Sitian WANG, Shougui CAI, Huarong ZHENG, Wen XU,wxu@zju.edu.cn

Journal Article

Land use/cover change effects on floods with different return periods: a case study of Beijing, China

Yueling WANG, Xiaoliu YANG

Journal Article