Results 1 to 10 of about 761,718 (286)

An Error Analysis of the Geometric Baade-Wesselink Method

, 2003
We derive an analytic solution for the minimization problem in the geometric Baade-Wesselink method. This solution allows deriving the distance and mean radius of a pulsating star by fitting its velocity curve and angular diameter measured ...
Bersier D., Bersier D., Claret A., Dimitar D. Sasselov, Feast M. W., Fernley J., Laney C. D., Margarita Karovska, Massimo Marengo, Mayly Sanchez, Meylan G., Ripepi V., Wesselink A.   +12 more
core   +2 more sources

Robust Uncalibrated Stereo Rectification with Constrained Geometric Distortions (USR-CGD)

, 2016
A novel algorithm for uncalibrated stereo image-pair rectification under the constraint of geometric distortion, called USR-CGD, is presented in this work.
Choi, Ouk, Ko, Hyunsuk, Kuo, C. -C. Jay, Shim, Han Suk   +3 more
core   +1 more source

A New Error Model and Compensation Strategy of Angle Encoder in Torsional Characteristic Measurement System

Sensors, 2019
For systems of measurement, geometric errors such as manufacturing and assembly errors could have a significant impact on the accuracy of the angle encoders of the system.
Bingkui Chen, Changyan Peng, Jian Huang
doaj   +1 more source

Optimal discrimination of single-qubit mixed states [PDF]

, 2017
We consider the problem of minimum-error quantum state discrimination for single-qubit mixed states. We present a method which uses the Helstrom conditions constructively and analytically; this algebraic approach is complementary to existing geometric ...
Barnett, Stephen M., Croke, Sarah, Weir, Graeme   +2 more
core   +2 more sources

Investigation of the Contact Characteristics of a Single-Nut Ball Screw Considering Geometric Errors

Lubricants
As the critical performance index of ball screws, the contact characteristics have a significant influence on the lubricant properties, tribological properties, and wear properties of ball screws, which further directly affect the service life of ball ...
Jun Liu, Huaxi Zhou, Xiaoyi Wang, Changguang Zhou   +3 more
doaj   +1 more source

Simulation Analysis of the Geometric Positioning Accuracy for MEO- and HEO-SAR Satellites

Remote Sensing, 2023
Due to the long synthetic aperture time, the large squint angle, and the large imaging width of medium Earth orbit (MEO) and high Earth orbit (HEO) SAR satellites, it is difficult to simulate the geometric positioning accuracy of MEO- and HEO-SAR ...
Ruishan Zhao, Ning Yang, Guo Zhang, Liang Pei, Jiguang Dai, Bing Zhang   +5 more
doaj   +1 more source

Environment-assisted holonomic quantum maps

, 2019
Holonomic quantum computation uses non-Abelian geometric phases to realize error resilient quantum gates. Nonadiabatic holonomic gates are particularly suitable to avoid unwanted decoherence effects, as they can be performed at high speed. By letting the
Ramberg, Nicklas, Sjöqvist, Erik
core   +1 more source

Fast rates for support vector machines using Gaussian kernels

, 2007
For binary classification we establish learning rates up to the order of $n^{-1}$ for support vector machines (SVMs) with hinge loss and Gaussian RBF kernels.
Scovel, Clint, Steinwart, Ingo
core   +1 more source

Error Modeling and Parameter Calibration Method for Industrial Robots Based on 6-DOF Position and Orientation

Applied Sciences, 2023
The positional accuracy and orientation accuracy of industrial robots are crucial technical indicators for determining their applicability in industrial scenarios.
Dabao Lao, Yongbin Quan, Fang Wang, Yukun Liu   +3 more
doaj   +1 more source

Efficient geometric integrators for nonadiabatic quantum dynamics. II. The diabatic representation

, 2019
Exact nonadiabatic quantum evolution preserves many geometric properties of the molecular Hilbert space. In a companion paper [S. Choi and J. Van\'{\i}\v{c}ek, 2019], we presented numerical integrators of arbitrary-order of accuracy that preserve these ...
Choi, Seonghoon, Roulet, Julien, Vaníček, Jiří   +2 more
core   +1 more source