267   Artículos

« Anterior     Página: 1 de 14     Siguiente »

 
en línea
Md Ruhul Amin, Md Mahbubur Rahman, Mohammad Amazad Hossain, Md Khairul Islam, Kazi Mowdud Ahmed, Bikash Chandra Singh and Md Sipon Miah    
In this paper, we proposed the unscented Kalman filter (UKF) based on cooperative spectrum sensing (CSS) scheme in a cognitive radio network (CRN) using an adaptive fuzzy system?in this proposed scheme, firstly, the UKF to apply the nonlinear system whic... ver más
Revista: Big Data and Cognitive Computing    Formato: Electrónico

 
en línea
Xian Wang, Zhengxiang Song, Kun Yang, Xuyang Yin, Yingsan Geng and Jianhua Wang    
Lithium-bismuth liquid metal batteries have much potential for stationary energy storage applications, with characteristics such as a large capacity, high energy density, low cost, long life-span and an ability for high current charge and discharge. Howe... ver más
Revista: Energies    Formato: Electrónico

 
en línea
Asra Nusrat, Yaan Li, Chunyan Cheng, Hafeezullah Qazi and Lingji Xu    
This paper considers the problem of tracking a uniform moving source using noisy bearing measurements obtained from a distant observer. Observer trajectory optimization plays a central role in this problem, with the objective to minimize the estimation e... ver más
Revista: Journal of Marine Science and Engineering    Formato: Electrónico

 
en línea
Ranzhen Ren, Lichuan Zhang, Lu Liu, Dongwei Wu, Guang Pan, Qiaogao Huang, Yuchen Zhu, Yazhe Liu and Zixiao Zhu    
To reduce the cooperative positioning error and improve the navigation accuracy, a single master?slave AUV cooperative navigation method is proposed in this paper, which mainly focuses on planning the optimal path of the master AUV by the time difference... ver más
Revista: Journal of Marine Science and Engineering    Formato: Electrónico

 
en línea
Jean Bergeron, Robert Leconte, Mélanie Trudel and Sepehr Farhoodi    
An important step when using some data assimilation methods, such as the ensemble Kalman filter and its variants, is to calibrate its parameters. Also called hyper-parameters, these include the model and observation errors, which have previously been sho... ver más
Revista: Hydrology    Formato: Electrónico

 
en línea
Doo Yong Choi, Seong-Won Kim, Min-Ah Choi and Zong Woo Geem    
Rapid detection of bursts and leaks in water distribution systems (WDSs) can reduce the social and economic costs incurred through direct loss of water into the ground, additional energy demand for water supply, and service interruptions. Many real-time ... ver más
Revista: Water    Formato: Electrónico

 
en línea
Doo Yong Choi, Seong-Won Kim, Min-Ah Choi, Zong Woo Geem     Pág. 1 - 12
Rapid detection of bursts and leaks in water distribution systems (WDSs) can reduce the social and economic costs incurred through direct loss of water into the ground, additional energy demand for water supply, and service interruptions. Many real-time ... ver más
Revista: Water    Formato: Electrónico

 
en línea
Bingyu Xu, Shuquan Wang, Liping Zhao and Long Zhang    
Obtaining the inertia tensors of defunct space objects is essential in on-orbit missions. When the inertia tensor of the space object is non-diagonal, the problem becomes challenging. In this case, the system does not have enough information to estimate ... ver más
Revista: Aerospace    Formato: Electrónico

 
en línea
Diana Kalita and Pavel Lyakhov    
The task of determining the distance from one object to another is one of the important tasks solved in robotics systems. Conventional algorithms rely on an iterative process of predicting distance estimates, which results in an increased computational b... ver más
Revista: Big Data and Cognitive Computing    Formato: Electrónico

 
en línea
Morgan Louédec and Luc Jaulin    
The extended Kalman filter has been shown to be a precise method for nonlinear state estimation and is the facto standard in navigation systems. However, if the initial estimated state is far from the true one, the filter may diverge, mainly due to an in... ver más
Revista: Algorithms    Formato: Electrónico

 
en línea
Yanbo Wang, Fasheng Wang, Jianjun He and Fuming Sun    
The particle filter method is a basic tool for inference on nonlinear partially observed Markov process models. Recently, it has been applied to solve constrained nonlinear filtering problems. Incorporating constraints could improve the state estimation ... ver más
Revista: Information    Formato: Electrónico

 
en línea
Hong Liu, Qiulong Yang and Kunde Yang    
Geoacoustic inversion is an efficient method to study the physical properties and structure of ocean bottom while sequential geoacoustic inversion is a challenging task due to the complexity and non-linearity of the underwater environment. In this paper,... ver más
Revista: Journal of Marine Science and Engineering    Formato: Electrónico

 
en línea
Elba Ramos-Ibarra,Eliud Silva     Pág. 401 - 420
Trends and forecasts of the main atmospheric pollutants (O3, SO2, NO2, CO, PM10, PM2.5, NO and NOx) are estimated by regions in the Mexico City Metropolitan Area (MCMA) with maximum daily data from 2008 to 2018. A non-parametric statistical smoothing con... ver más
Revista: Atmósfera    Formato: Electrónico

 
en línea
Yanting Du, Guangdi Hu, Shun Xiang, Ke Zhang, Hongxing Liu and Feng Guo    
In order to estimate the diesel particulate filter (DPF) soot load and improve the accuracy of regeneration timing, a novel method based on an equivalent circuit model is proposed based on the electric-fluid analogy. This proposed method can reduce the i... ver más
Revista: Energies    Formato: Electrónico

 
en línea
Andrés Mauricio Gómez Sánchez,José Gabriel Astaiza Gómez     Pág. 109 - 129
This article investigates the relationship between ex-post Equity Risk Premium (ERP) on the Colombian stock market and the economic cycles observed in the country using methodologies based on the Hodrick-Prescott and Kalman filters. Accordingly, a short-... ver más
Revista: Revista Finanzas y PolÍ­tica Económica    Formato: Electrónico

 
en línea
Feng Lu, Jinquan Huang and Yiqiu Lv    
Different approaches for gas path performance estimation of dynamic systems are commonly used, the most common being the variants of the Kalman filter. The extended Kalman filter (EKF) method is a popular approach for nonlinear systems which combines the... ver más
Revista: Energies    Formato: Electrónico

 
en línea
Mengnan Cao, Yingning Qiu, Yanhui Feng, Hao Wang and Dan Li    
Effective wind turbine fault diagnostic algorithms are crucial for wind turbine intelligent condition monitoring. An unscented Kalman filter approach is proposed to successfully detect and isolate two types of gearbox failures of a wind turbine in this p... ver más
Revista: Energies    Formato: Electrónico

 
en línea
Kenan Liu, Wuyun Zhao, Bugong Sun, Pute Wu, Delan Zhu and Peng Zhang    
Autonomous navigation for agricultural machinery has broad and promising development prospects. Kalman filter technology, which can improve positioning accuracy, is widely used in navigation systems in different fields. However, there has not been much r... ver más
Revista: Water    Formato: Electrónico

 
en línea
Zhaoming Li, Xinyan Yang, Lei Li and Hang Chen    
In order to increase a nonlinear system?s state estimate precision, an iterated orthogonal simplex cubature Kalman filter (IOSCKF) is presented in this study for target tracking. The Gaussian-weighted integral is decomposed into a spherical integral and ... ver más
Revista: Applied Sciences    Formato: Electrónico

 
en línea
Taehoon Lee, Byungjin Lee and Sangkyung Sung    
This study proposes an enhanced integration algorithm that combines the magnetic field-based positioning system (MPS?Magnetic Pose Estimation System) with an inertial system with the advantage of an invariant filter structure. Specifically, to mitigate t... ver más
Revista: Aerospace    Formato: Electrónico

« Anterior     Página: 1 de 14     Siguiente »