A state estimation scheme with minimal sensor configuration for three-body tethered satellite formations

2020 ◽  
Vol 66 (11) ◽  
pp. 2667-2680
Author(s):  
Yizhai Zhang ◽  
Piaoqi Zhang ◽  
Guotao Fang ◽  
Panfeng Huang
Keyword(s):  
State Estimation ◽  
Tethered Satellite ◽  
Satellite Formations ◽  
Estimation Scheme ◽  
Sensor Configuration ◽  
Three Body

State estimation of double-pyramid tethered satellite formations using only two GPS sensors

2021 ◽  
Vol 180 ◽  
pp. 507-515
Author(s):  
Guotao Fang ◽  
Yizhai Zhang ◽  
Panfeng Huang ◽  
Fan Zhang
Keyword(s):  
State Estimation ◽  
Tethered Satellite ◽  
Satellite Formations

scholarly journals A Decentralized Framework for Parameter and State Estimation of Infiltration Processes

Mathematics ◽  
2020 ◽  
Vol 8 (5) ◽  
pp. 681
Author(s):  
Song Bo ◽  
Jinfeng Liu
Keyword(s):  
Parameter Estimation ◽  
State Estimation ◽  
Vadose Zone ◽  
Three Dimensional ◽  
Water Dynamics ◽  
Richards Equation ◽  
Soil Water Dynamics ◽  
Decentralized Estimation ◽  
Gravitational Forces ◽  
Estimation Scheme

The Richards’ equation is widely used in the modeling soil water dynamics driven by the capillary and gravitational forces in the vadose zone. Its state and parameter estimation based on field soil moisture measurements is important and challenging for field applications of the Richards’ equation. In this work, we consider simultaneous state and parameter estimation of systems described by the three dimensional Richards’ equation with multiple types of soil. Based on a study on the interaction between subsystems, we propose to use decentralized estimation schemes to reduce the complexity of the estimation problem. Guidelines for subsystem decomposition are discussed and a decentralized estimation scheme developed in the framework of moving horizon state estimation is proposed. Extensive simulation results are presented to show the performance of the proposed decentralized approach.

Dynamics of multi-tethered satellite formations containing a parent body

2008 ◽  
Vol 63 (11-12) ◽  
pp. 1188-1202 ◽  
Author(s):  
Ary Pizarro-Chong ◽  
Arun K. Misra
Keyword(s):  
Parent Body ◽  
Tethered Satellite ◽  
Satellite Formations

A non-linear multiple-model state estimation scheme for pipeline leak detection and isolation

2002 ◽  
Vol 216 (6) ◽  
pp. 497-512 ◽  
Author(s):  
H E Emara-Shabaik ◽  
Y A Khulief ◽  
I Hussaini
Keyword(s):  
Fluid Flow ◽  
State Estimation ◽  
Space Form ◽  
Multiple Model ◽  
Time Duration ◽  
Non Linear ◽  
Estimation Scheme ◽  
Short Time ◽  
Detection And Localization ◽  
Localization Of Leaks

Model-based monitoring schemes are known to have a great potential in detection and localization of leaks in pipelines. Fluid flow in pipelines is characterized by a system of non-linear-coupled partial differential equations. Since state estimation can provide the basis for real-time monitoring of fluid flow in pipelines, a suitable numerical scheme is employed to formulate the problem in state-space form, which enables the development of state estimation techniques. A modified extended Kalman filter (MEKF) in conjunction with feed forward computations to anticipate the leak magnitude provides the core of the adaptive multimodel state estimation technique used in this paper. Numerical simulation results show that the developed state estimation scheme effectively detects and locates small leaks in pipelines within a short time duration.

Microscopic simulation-based validation of a per-lane traffic state estimation scheme for highways with connected vehicles

2018 ◽  
Vol 86 ◽  
pp. 441-452 ◽  
Author(s):  
Sofia Papadopoulou ◽  
Claudio Roncoli ◽  
Nikolaos Bekiaris-Liberis ◽  
Ioannis Papamichail ◽  
Markos Papageorgiou
Keyword(s):  
State Estimation ◽  
Connected Vehicles ◽  
Microscopic Simulation ◽  
Traffic State ◽  
Traffic State Estimation ◽  
Simulation Based ◽  
Estimation Scheme
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