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LEAST-SQUARES: 作品数：160被引量：295H指数：9; 导出分析报告; 相关领域：理学更多>>; 相关作者：王亚洲秦国良邓健潘树国柯福阳更多>>; 相关机构：西安交通大学东南大学哈尔滨工业大学中国科学技术大学更多>>; 相关期刊：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中国博士后科学基金国家高技术研究发展计划更多>>

Diving dynamics identification and motion prediction for marine crafts using field data: 《Journal of Ocean Engineering and Science》2024年第4期391-400,共10页Yiming Zhong Caoyang Yu Yulin Bai Zheng Zeng Lian Lian; supported in part by the National Natural Sci-ence Foundation of China under Grant 42376187;in part by the National Key R&D Program of China under Grant 2023YFC2812800,in part by the Natural Science Foundation of Shanghai under Grant 22ZR1434600;in part by the Oceanic Interdisciplinary Program of Shanghai Jiao Tong University under Grant SL2022MS016;in part by the Shanghai Jiao Tong University 2030 Initiative under Grant WH510244001;in part by the Shanghai Underwater Robot En-gineering Technology Innovation Center under Grant 21DZ2221600.; Ensuring accurate parameter identification and diving motion prediction of marine crafts is essential for safe navigation,optimized operational efficiency,and the advancement of marine exploration.Addressing this,this...; 关键词：Marine craft Parameter identification Motion prediction Instrumental variable-based least-squares algorithm Diving dynamics model

Deep reinforcement learning using least-squares truncated temporal-difference: 《CAAI Transactions on Intelligence Technology》2024年第2期425-439,共15页Junkai Ren Yixing Lan Xin Xu Yichuan Zhang Qiang Fang Yujun Zeng; Joint Funds of the National Natural Science Foundation of China,Grant/Award Number:U21A20518;National Natural Science Foundation of China,Grant/Award Numbers:62106279,61903372。; Policy evaluation(PE)is a critical sub-problem in reinforcement learning,which estimates the value function for a given policy and can be used for policy improvement.However,there still exist some limitations in curre...; 关键词：Deep reinforcement learning policy evaluation temporal difference value function approximation

Least Square Finite Element Model for Analysis of Multilayered Composite Plates under Arbitrary Boundary Conditions: 《World Journal of Engineering and Technology》2024年第1期40-64,共25页Christian Mathew Yao Fu; Laminated composites are widely used in many engineering industries such as aircraft, spacecraft, boat hulls, racing car bodies, and storage tanks. We analyze the 3D deformations of a multilayered, linear elastic, ani...; 关键词：Multilayered Composite and Sandwich Plate Transverse Stress Continuity Condition Arbitrary Boundary Condition Layerwise Theory Least-Squares Formulation

Linearized waveform inversion for vertical transversely isotropic elastic media:Methodology and multi-parameter crosstalk analysis: 《Petroleum Science》2024年第1期252-271,共20页Ke Chen Lu Liu Li-Nan Xu Fei Hu Yuan Yang Jia-Hui Zuo Le-Le Zhang Yang Zhao; Seismic migration and inversion are closely related techniques to portray subsurface images and identify hydrocarbon reservoirs.Seismic migration aims at obtaining structural images of subsurface geologic discontinuit...; 关键词：ELASTIC ANISOTROPY Least-squares imaging Waveform inversion Computational geophysics

Least-squares reverse time migration in visco-acoustic media based on symplectic stereo-modeling method: 《Global Geology》2023年第4期237-250,共14页LI Jingshuang ZHANG Xiangjia HE Xijun ZHOU Yanjie; Supported by projects of National Natural Science Foundation of China(Nos.41604105,41974114);Fundamental Research Funds for Central Universities(No.2020YQLX01).; The authors proposed a symplectic stereo-modeling method(SSM)in the Birkhoffian dynam-ics and apply it to the visco-acoustic least-squares reverse time migration(LSRTM).The SSM adopts ste-reo-modeling operator in spac...; 关键词：least-squares reverse time migration visco-acoustic equation Birkhoffian dynamic symplectic stereo-modeling dynamic source encoding

A robust compact least-squares reconstruction method for compressible turbulent flow simulations of complex configurations: 《Chinese Journal of Aeronautics》2023年第12期113-138,共26页Jia YAN Zhengyu NIU Xiaoquan YANG Jue DING Xiaolong TANG Peifeng WENG; supported by the National Natural Science Foundation of China(Nos.11702329,12102247);the Shanghai Key Lab of Vehicle Aerodynamics and Vehicle Thermal Management Systems,China(No.VATLAB-2021-01)。; For the second-order finite volume method,implicit schemes and reconstruction methods are two main algorithms which influence the robustness and efficiency of the numerical simulations of compressible turbulent flows....; 关键词：Compact least-squares reconstruction method Exact Jacobian matrix Finite volume method Implicit schemes Turbulent flow

Adaptive estimation and control for uncertain nonlinear systems and full actuation control: 《Science China(Information Sciences)》2023年第11期165-180,共16页Fei YAN Mingyuan ZHANG Guoxiang GU; supported in part by National Natural Science Foundation of China(Grant No.61873215);Natural Science Foundation of Sichuan Province(Grant No.2022NSFSC0470)。; We study adaptive control for a family of nonlinear systems,involving unknown and uncertain parameters.The proposed control law estimates the system parameters adaptively and stabilizes the closedloop system asymptoti...; 关键词：adaptive control asymptotic stabilization full actuation and under actuation LEAST-SQUARES NONLINEARSYSTEMS

The mathematical weighting of GNSS observations based on different types of receivers/antennas and environmental conditions被引量：1: 《Geodesy and Geodynamics》2023年第5期521-540,共20页Kamal Parvazi Saeed Farzaneh Abdolreza Safari; Stochastic models play an important role in achieving high accuracy in positioning,the ideal estimator in the least-squares(LS)can be obtained only by using the suitable stochastic model.This study investigates the ro...; 关键词：Stochastic model Global positioning system Variance component estimation LEAST-SQUARES Precise point positioning Elevation-dependent model

Comparison of different pseudo-linear estimators for vision-based target motion estimation: 《Control Theory and Technology》2023年第3期448-457,共10页Zian Ning Yin Zhang Shiyu Zhao; Vision-based target motion estimation based Kalman filtering or least-squares estimators is an important problem in many tasks such as vision-based swarming or vision-based target pursuit.In this paper,we focus on a p...; 关键词：Pseudo-linear measurements Kalman filter Least-squares estimator Vision-based target motion analysis Fisher information

Convergence of adaptive MPC for linear stochastic systems被引量：1: 《Science China(Information Sciences)》2023年第5期126-142,共17页Hui CHEN Lei GUO; supported by National Natural Science Foundation of China(Grant No.12288201);National Center for Mathematics and Interdisciplinary Sciences,CAS。; The convergence of an adaptive model predictive control(MPC)algorithm for discrete-time linear stochastic systems with unknown parameters is investigated in this paper.The proposed adaptive MPC is designed by solving ...; 关键词：adaptive control linear-quadratic optimal control model predictive control uncertain stochastic system weighted least-squares

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