ALIASING

作品数：36被引量：28H指数：3
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相关领域：电子电信更多>>
相关作者：王芳李晋华更多>>
相关机构：山西省光电信息与仪器工程技术研究中心上海理工大学更多>>
相关期刊：《Science Bulletin》《西华大学学报（哲学社会科学版）》《Journal of Applied Mathematics and Physics》《Advances in Atmospheric Sciences》更多>>
相关基金：国家自然科学基金国家重点基础研究发展计划国家高技术研究发展计划更多>>
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HUST-CRA:A New Atmospheric De-Aliasing Model for Satellite Gravimetry
《Advances in Atmospheric Sciences》2025年第2期382-396,共15页Weihang ZHANG Fan YANG Yi WU Hailong LIU Tao ZHANG Zhicai LUO Ehsan FOROOTAN 
financial support from the National Natural Science Foundation of China(Grant Nos.42274112 and 41804016);supported by Danmarks Frie Forskningsfond[https://doi.org/10.46540/2035-00247B]through the DANSk-LSM project and HPC Platform of Huazhong University of Science and Technology。
Atmospheric de-aliasing is one of the most important background models for recovering Earth's temporal gravity field from gravity satellite missions.To meet the needs of China's gravimetric satellite platform,an indep...
关键词：CRA-40 atmospheric de-aliasing gravity satellite temporal gravity field 
Vibration-assisted vat photopolymerization for pixelated-aliasing-free surface fabrication
《International Journal of Extreme Manufacturing》2024年第3期440-456,共17页Han Xu Renzhi Hu Shuai Chen Junhong Zhu Chi Zhou Yong Chen 
Mask image projection-based vat photopolymerization(MIP-VPP)offers advantages like low cost,high resolution,and a wide material range,making it popular in industry and education.Recently,MIP-VPP employing liquid cryst...
关键词：additive manufacturing vat photopolymerization piezo vibration sub-pixel resolution ALIASING 
Comb-Based Filter Design Using Sharpening Technique and Certain Palindromic Polynomial
《Journal of Applied Mathematics and Physics》2023年第11期3773-3781,共9页Gordana Jovanovic Dolecek 
This paper presents a novel approach to improve aliasing rejection in comb-based decimation filters. The method is established on certain palindromic polynomials with all zeros on the unit circle and the sharpening te...
关键词：Comb Filter ALIASING Passband Droop Palindromic Polynomial SHARPENING 
Optimal beamforming with aliasing cancellation in the spherical harmonics domain
《Chinese Journal of Acoustics》2023年第3期307-321,共15页JIANG Peihong CHU Zhigang LI Peiran YANG Yang 
supported by the Open Foundation of the State Key Laboratory of Noise,Vibration and Safety Technology of China(NVHSKL-202002);the National Natural Science Foundation of China(11704040)。
The existing beamforming with aliasing elimination in the spherical harmonics domain usually adopts a single design goal,making it challenging to adapt to diverse application scenarios.Therefore,we propose optimal bea...
关键词：HARMONICS SPHERICAL CONSTRAINT 
Spatial transformation of general sampling-aliasing frequency region for rotating-blade parameter identification with emphasis on single-probe blade tip-timing measurement被引量：1
《Chinese Journal of Aeronautics》2023年第3期220-240,共21页Jiahui CAO Zhibo YANG Guangrong TENG Shaohua TIAN Guoyong YE Xuefeng CHEN 
supported by the National Key Research and Development Program of China(No.2020YFB2010800);the National Natural Science Foundation of China(Nos.51875433 and 92060302);the Natural Science Foundation of Shaanxi Province,China(No.2019KJXX-043,2021JC-04);the Fundamental Research Funds for the Central Universities and the Foundation of Beilin District,China(No.GX2029)。
Blade-health monitoring is intensely required for turbomachinery because of the high failure risk of rotating blades.Blade-Tip Timing(BTT)is considered as the most promising technique for operational blade-vibration m...
关键词：Blade-tip timing(BTT) Extended time-frequency analysis Image-feature recognition Parameter extraction Sampling-aliasing frequency map Spatial transformation Vibration analysis 
Non-synchronous blade vibration analysis of a transonic fan被引量：6
《Chinese Journal of Aeronautics》2023年第1期178-190,共13页Yun ZHENG Qingzhe GAO Hui YANG 
co-supported by the National Science and Technology Major Project,China(No.2017-Ⅱ-0009-0023).
This study numerically investigates the aeromechanic behavior of a transonic fan model with a flat tip-leading-edge on the NASA rotor 67 test case.Single-passage unsteady calculations at a near stall operating point o...
关键词：Aerodynamic disturbance ALIASING Blade vibration Circumferential vortical propagation Traveling wave 
Cancellable Multi-Biometric Template Generation Based on Arnold Cat Map and Aliasing
《Computers, Materials & Continua》2022年第8期3687-3703,共17页Ahmed M.Ayoup Ashraf A.M.Khalaf Walid El-Shafai Fathi E.Abd El-Samie Fahad Alraddady Salwa M.Serag Eldin 
This research was supported by Taif University Researchers Supporting Project Number(TURSP-2020/214),Taif University,Taif,Saudi Arabia(www.tu.edu.sa).
The cancellable biometric transformations are designed to be computationally difficult to obtain the original biometric data.This paper presents a cancellable multi-biometric identification scheme that includes four s...
关键词：Aliasing technique selective encryption ACM decimation process 
Geotechnical engineering blasting:a new modal aliasing cancellation methodology of vibration signal de-noising被引量：5
《Earthquake Engineering and Engineering Vibration》2022年第2期313-323,共11页Yi Wenhua Yan Lei Wang Zhenhuan Yang Jianhua Tao Tiejun Liu Liansheng 
National Natural Science Foundation of China under Grant Nos.52064015 and 51404111;Jiangxi Provincial Natural Science Foundation under Grant No.20192BAB206017;Scientific Research Project of Jiangxi Provincial Education Department under Grant No.GJJ160643;the Program of Qingjiang Excellent Young Talents,Jiangxi University of Science and Technology under Grant No.JXUSTQJYX2016007。
In the present study of peak particle velocity(PPV)and frequency,an improved algorithm(principal empirical mode decomposition,PEMD)based on principal component analysis(PCA)and empirical mode decomposition(EMD)is prop...
关键词：blasting vibration frequency empirical mode decomposition modal aliasing DE-NOISING 
Construction of Orthogonal Arrays without Interaction Columns
《Acta Mathematicae Applicatae Sinica》2022年第1期159-168,共10页Shan-qi PANG Ya-ping WANG Ming-yao AI 
supported by NSFC grants 11971004 and 11571094;supported by NSFC grants 11901199 and 71931004;supported by NSFC grants 12071014 and 12131001;Shanghai Sailing Program 19YF1412800;SSFC grant 19ZDA121 and LMEQF。
In this paper a new class of orthogonal arrays(OAs),i.e.,OAs without interaction columns,are proposed which are applicable in factor screening,interaction detection and other cases.With the tools of difference matrice...
关键词：complex aliasing difference matrix Hadamard matrix Kronecker sum symmetric array 
Optical Vernier sampling using a dual-comb-swept laser to solve distance aliasing被引量：3
《Photonics Research》2021年第5期657-667,共11页SEONGJIN BAK GYEONG HUN KIM HANSOL JANG CHANG-SEOK KIM 
Korea Medical Device Development Fund grant funded by the Korea government(the Ministry of Science and ICT,the Ministry of Trade,Industry and Energy,the Ministry of Health and Welfare,the Ministry of Food and Drug Safety)(202011C13,KMDF_PR_20200901_0055);Commercialization Promotion Agency for R&D Outcomes(COMPA)funded by the Ministry of Science and ICT(1711123345);Korea Institute for Advancement of Technology(KIAT)grant funded by the Ministry of Trade,Industry and Energy(N0002310)。
Optical interferometry using comb-swept lasers has the advantage of efficiently reducing the acquisition bandwidth for high-speed and long-range detection. However, in general, the use of a comb-swept laser involves a...
关键词：laser INTERFEROMETRY ABSOLUTE 
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