The importance of residual PVC offset correction for inverse localization of PVC origin using a single dipole

2021 ◽  
Vol 69 ◽  
pp. 82-83
Author(s):  
Jana Svehlikova ◽  
Jan Zelinka ◽  
Miroslav Haska ◽  
Beata Ondrusova ◽  
Katarina Kromkova ◽  
...  
Keyword(s):  
Single Dipole ◽  
Offset Correction

scholarly journals Motor field sensitivity for preoperative localization of motor cortex

2006 ◽  
Vol 105 (4) ◽  
pp. 588-594 ◽  
Author(s):  
Peter T. Lin ◽  
Mitchel S. Berger ◽  
Srikantan S. Nagarajan
Keyword(s):  
Tactile Stimulation ◽  
Dipole Localization ◽  
Source Imaging ◽  
Magnetic Source Imaging ◽  
Motor Mapping ◽  
Field Sensitivity ◽  
Finger Flexion ◽  
Single Dipole ◽  
Movement Evoked Field

Object In this study the role of magnetic source imaging for preoperative motor mapping was evaluated by using a single-dipole localization method to analyze motor field data in 41 patients. Methods Data from affected and unaffected hemispheres were collected in patients performing voluntary finger flexion movements. Somatosensory evoked field (SSEF) data were also obtained using tactile stimulation. Dipole localization using motor field (MF) data was successful in only 49% of patients, whereas localization with movement-evoked field (MEF) data was successful in 66% of patients. When the spatial distribution of MF and MEF dipoles in relation to SSEF dipoles was analyzed, the motor dipoles were not spatially distinct from somatosensory dipoles. Conclusions The findings in this study suggest that single-dipole localization for the analysis of motor data is not sufficiently sensitive and is nonspecific, and thus not clinically useful.

Model-Based Relevance of Measuring Electrodes for the Inverse Solution with a Single Dipole

2021 ◽  
Author(s):  
Beata Ondrusova ◽  
Jana Svehlikova ◽  
Jan Zelinka ◽  
Milan Tysler ◽  
Peter Tino
Keyword(s):  
Inverse Solution ◽  
Model Based ◽  
Single Dipole

Performance Analysis of GPS/BDS Precise Point Positioning

2015 ◽  
Vol 713-715 ◽  
pp. 1123-1126
Author(s):  
Xiao Yu Li ◽  
Jun Wang ◽  
Ya Tao Liu
Keyword(s):  
Precise Point Positioning ◽  
Satellite Orbit ◽  
Gps Measurements ◽  
Differential Code Bias ◽  
Phase Offset ◽  
Antenna Phase ◽  
Offset Correction ◽  
Code Bias ◽  
Point Positioning ◽  
Processing Steps

Precise Point Positioning (PPP) with GPS measurements has achieved a level of success. In order to benefit from the multiple available constellations, research has been undertaken to combineGPS and BDS measurements in PPP processing.Mathematical models of GPS/BDS combined precise point positioning are introduced in this paper. GPS/BDS combined PPP models are developed based on the GPS-only PPP. The data pre-processing steps include applying satellite orbit and clock corrections, satellite antenna phase offset correction, receiver antenna phase offset correction, differential code bias corrections, troposphere delay corrections and the the Ionosphere-free observation combination is used. The results show that the positioning precision and convergence speed of GPS/BDS combined PPP are improved compared with GPS-only PPP.

scholarly journals Adaptive Offset Correction for Intracortical Brain–Computer Interfaces

2014 ◽  
Vol 22 (2) ◽  
pp. 239-248 ◽  
Author(s):  
Mark L. Homer ◽  
Janos A. Perge ◽  
Michael J. Black ◽  
Matthew T. Harrison ◽  
Sydney S. Cash ◽  
...  
Keyword(s):  
Brain Computer Interfaces ◽  
Computer Interfaces ◽  
Offset Correction
Sign in / Sign up

Export Citation Format

Share Document