西北工业大学学报最新文献_第9页

Modulation recognition algorithm based on mixed attention prototype network 基于混合注意力原型网络的调制识别算法

西北工业大学学报 Pub Date : 2022-12-01 DOI: 10.1051/jnwpu/20224061375

Yi Pang, Hua Xu, Lei Jiang, Yunhao Shi, Xiang Peng

引用次数: 0

A method for evaluating human-machine interface in civil aircraft cockpit based on human factor reliability 基于人因可靠性的民用飞机驾驶舱人机界面评价方法

西北工业大学学报 Pub Date : 2022-12-01 DOI: 10.1051/jnwpu/20224061250

Ning Xie, Dengkai Chen, Yao Zhou, Xian Zhang

引用次数: 0

Research on the contact model between the polishing force and normal displacement in the flexible polishing using ABFW ABFW柔性抛光中抛光力与法向位移的接触模型研究

西北工业大学学报 Pub Date : 2022-12-01 DOI: 10.1051/jnwpu/20224061335

Junfeng Zhang, Yaoyao Shi, Xiaojun Lin, Xiaojun Wu

引用次数: 0

Research on vanishing point detection of unstructured road scene combined with stereo vision 结合立体视觉的非结构化道路场景消失点检测研究

西北工业大学学报 Pub Date : 2022-12-01 DOI: 10.1051/jnwpu/20224061431

Xing Chen, Wenhai Zhang, L. Yang, Xunjia Zheng

引用次数: 0

Dual high frequency square wave injection method for dual winding permanent magnet synchronous motor sensorless control 双绕组永磁同步电机无传感器控制的双高频方波注入方法

西北工业大学学报 Pub Date : 2022-12-01 DOI: 10.1051/jnwpu/20224061352

Qixun Zhou, Ping'an Ma, Yong Zhou, Hucheng He, Chongchong Chang

引用次数: 1

Efficient importance analysis methods for structures with distribution parameter uncertainty based on cubature formula 基于容积公式的分布参数不确定结构的有效重要性分析方法

西北工业大学学报 Pub Date : 2022-12-01 DOI: 10.1051/jnwpu/20224061212

Junchao Liu, Luyi Li

{"title":"Efficient importance analysis methods for structures with distribution parameter uncertainty based on cubature formula","authors":"Junchao Liu, Luyi Li","doi":"10.1051/jnwpu/20224061212","DOIUrl":"https://doi.org/10.1051/jnwpu/20224061212","url":null,"abstract":"The importance analysis of a structural system with distribution parameter uncertainty can identify key parameters that significantly affect its output performance, thus providing importance guidance for its design and optimization. However, the traditional importance analysis method requires the three-loop Monte Carlo sampling to estimate the importance measurement index of a distribution parameter with such output characteristic values as mean and variance, whose computational cost is too large. To solve this problem, two efficient cubature formula methods based on the surrogate sampling probability density function (SSPDF) for the importance analysis of distribution parameters are proposed: ①the double-loop cubature formula based on the surrogate sampling probability density function (S-DLCF); ②the single-loop cubature formula based on the surrogate sampling probability density function (S-SLCF). The two methods use cubature formulas to efficiently compute the nested mean and variance in the importance measurement index of a distribution parameter, thus solving the problem that the computational effort of propagating parameter uncertainty to output characteristic values depends on parameter dimensionality because of SSPDF. The S-DLCF makes full use of the efficiency and accuracy of the cubature formula to estimate output statistical moments; the S-SLCF simplifies the integral to calculate output moments by expanding the dimensionality of the distribution parameter. The numerical and engineering examples verify the efficiency and accuracy of the two methods for the importance analysis of distribution parameters.","PeriodicalId":39691,"journal":{"name":"西北工业大学学报","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49584557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The vibration environment prediction method based on OPAX 基于OPAX的振动环境预测方法

西北工业大学学报 Pub Date : 2022-12-01 DOI: 10.1051/jnwpu/20224061320

Yixuan Li, Jijun Liu, Kaixiang Li, Chunyu Bai

引用次数: 0

State estimation of power grid under smart grid integration based on FFCD-SOGI-PLL 基于FFCD-SOGI-PLL的智能电网集成下电网状态估计

西北工业大学学报 Pub Date : 2022-12-01 DOI: 10.1051/jnwpu/20224061343

Xiangyu Zhou, Zhen Zhang, Ruiqing Ma, Chun-Yi Wu, Yong-man Lu, Kang Xiangli, Danqing Wang

引用次数: 0

Single event upset reinforcement technology of DICE flip-flop based on layout design 基于布局设计的DICE触发器单事件破坏加固技术

西北工业大学学报 Pub Date : 2022-12-01 DOI: 10.1051/jnwpu/20224061305

Xiaoling Lai, Jian Zhang, Ting Ju, Qi Zhu, Yangming Guo

{"title":"Single event upset reinforcement technology of DICE flip-flop based on layout design","authors":"Xiaoling Lai, Jian Zhang, Ting Ju, Qi Zhu, Yangming Guo","doi":"10.1051/jnwpu/20224061305","DOIUrl":"https://doi.org/10.1051/jnwpu/20224061305","url":null,"abstract":"D flip-flop is the basis of timing logic circuit, and SEMU phenomenon tends to be serious with the integrated circuit process size shrinking to nanometer scale. The anti-SEU ability based on DICE structure for D flip-flop cannot meet the requirements of aerospace engineering. Based on the SEU reinforcement technology of D flip-flop under nano-technology and the SEU mechanism of DICE structure, a layout-level anti-SEU flip-flop design method based on DICE circuit structure is proposed considering the circuit performance, area, power consumption and other resource costs. And then a D flip-flop with SEU resistance is designed by commercial 65 nm process, and the designed flip-flop area is 1.8 times that of commercial structure flip-flop. The function and and radiation simulation results indicate that the establishment time and transmission delay of the flip-flop are equivalent to those of the commercial one, and no SEU occurs under the Ge ion bombardment with the LET threshold of approximately 37 MeV·cm2/mg. The performance of the flip-flop circuit and the ability to resist single particle soft error are excellent. In the anti-radiation ASIC design, the area, wiring resources and timing overhead caused by the reinforcement of the D flip-flop circuit are greatly saved.","PeriodicalId":39691,"journal":{"name":"西北工业大学学报","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44462710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of attack angle on ventilated supercavitating flow at high Froude number condition 高弗劳德数条件下攻角对通气超空泡流动的影响

西北工业大学学报 Pub Date : 2022-12-01 DOI: 10.1051/jnwpu/20224061233

Yifei Wang, J. Dang, Chuang Huang, Haiyu Xu, Z. Zuo

引用次数: 0