Results 11 to 20 of about 540,179 (287)

A Method for Improved Flight Testing of Remotely Piloted Aircraft Using Multisine Inputs

Aerospace, 2020
Unless a segregated airspace and the corresponding clearances can be afforded, flight testing of remotely piloted aircraft is often done near the ground and within visual line-of-sight. In addition to the increased exposure to turbulence, this setup also
Roger Larsson, Alejandro Sobron, David Lundström, Martin Enqvist   +3 more
doaj   +1 more source

On Fixed-Accuracy Confidence Intervals for the Parameters of Lindley Distribution and Its Extensions

Austrian Journal of Statistics, 2023
The purpose of the present paper is to deal with sequential estimation of the parameter θ in a Lindley distribution. A fixed-accuracy confidence interval for θ with a preassigned confidence coefficient is developed.
Sudeep Bapat, Neeraj Joshi, Ashish Shukla   +2 more
doaj   +1 more source

Sequential Fusion Filter for State Estimation of Nonlinear Multi-Sensor Systems with Cross-Correlated Noise and Packet Dropout Compensation

Sensors, 2023
This paper is concerned with the problem of state estimation for nonlinear multi-sensor systems with cross-correlated noise and packet loss compensation.
Liguo Tan, Yibo Wang, Changqing Hu, Xinbin Zhang, Liyi Li, Haoxiang Su   +5 more
doaj   +1 more source

A Sequential Multiplicative Extended Kalman Filter for Attitude Estimation Using Vector Observations

Sensors, 2018
In this paper, a sequential multiplicative extended Kalman filter (SMEKF) is proposed for attitude estimation using vector observations. In the proposed SMEKF, each of the vector observations is processed sequentially to update the attitude, which can ...
Fangjun Qin, Lubin Chang, Sai Jiang, Feng Zha   +3 more
doaj   +1 more source

Sequential Shrinkage Estimation

The Annals of Statistics, 1987
Let \(X_ 1,X_ 2,\ldots\) \((p\times 1)\) be i.i.d. \(N(\theta,\sigma^2V)\), with \(\theta\), \(\sigma\) unknown and \(V\) a known \(p\times p\) positive definite matrix. If it is decided to stop at stage \(n\) and \(\theta\) is estimated by \(\delta_ n=\delta_ n(X_ 1,\ldots,X_ n)\), then the loss will be \(L(\theta,\delta_ n)'Q(\delta_ n-\theta)+cn ...
Ghosh, Malay, Nickerson, David M., Sen, Pranab K.   +2 more
openaire   +3 more sources

Observational Arc-Length Effect on Orbit Determination for KPLO

Journal of Astronomy and Space Sciences, 2018
In this study, orbit determination (OD) simulation for the Korea Pathfinder Lunar Orbiter (KPLO) was accomplished for investigation of the observational arc-length effect using a sequential estimation algorithm.
Young-Rok Kim, Young-Joo Song, Jonghee Bae, Seok-Weon Choi   +3 more
doaj   +1 more source

Observational Arc-Length Effect on Orbit Determination for Korea Pathfinder Lunar Orbiter in the Earth-Moon Transfer Phase Using a Sequential Estimation

Journal of Astronomy and Space Sciences, 2019
In this study, the observational arc-length effect on orbit determination (OD) for the Korea Pathfinder Lunar Orbiter (KPLO) in the Earth-Moon Transfer phase was investigated.
Kim, Youngrok, Song, Young-Joo
doaj   +1 more source

Inverse Method Applied for the Determination of the Wall Shear Rate in a Scraped Surface Heat Exchanger using the Electrochemical Technique

International Journal of Electrochemical Science, 2008
In this study, an inverse method is presented so as to determine the wall shear rate in a scraped surface heat exchanger using polarography technique. Based on a numerical sequential estimation, this method which enables the inversion of the convection ...
F. Aloui, F. Rehimi, E. Dumont, J. Legrand   +3 more
doaj   +1 more source

Sequential d-guaranteed estimate of the normal mean with bounded relative error

Учёные записки Казанского университета: Серия Физико-математические науки, 2019
In this paper, we continue our research on evaluation of the mean value of the normal distribution with prior information that this parameter is positive and very small.
R.F. Salimov, I.N. Volodin, N.F. Nasibullina   +2 more
doaj   +1 more source

DEEP LIDAR ODOMETRY [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
Most existing lidar odometry estimation strategies are formulated under a standard framework that includes feature selection, and pose estimation through feature matching.
Q. Li, C. Wang, C. Wang, S. Chen, X. Li, C. Wen, M. Cheng, J. Li, J. Li   +8 more
doaj   +1 more source