errors of dead-reckoning
An Accurate Dead Reckoning Method based on Geometry Principles for Mobile Robot Localization
... In the ideal circumstances, this method is sufficient to locate the differential drive mobile robot in any next time. However, some real events may challenge this ideal situation like modeling errors, actuator ...
5
Ultrasound aided pedestrian dead reckoning for indoor navigation
... Figures 5 and 6 show that the performance of PDR can be impacted significantly by heading errors. We tested it for cases where the user walks along a corridor and enters several rooms along the way; the path shown ...
6
Dead reckoning of a skid steer mobile robot using fuzzy
... orientation errors caused by odometric ...distance errors determined by the odometry readings to the outputs of translational and rotational speed of the mobile ...orientation errors by almost 100 ...
10
A path reconstruction method integrating dead reckoning and position fixes applied to humpback whales
... The use of the normally-distributed percent error for range was a practical way to scale the error with dis- tance, although a minor range-dependent effect in the transformed data remained. Error models for range based ...
16
The development of subsystem of accommodation to faults for dead reckoning system of autonomous underwater vehicles
... is dead reckoning system (DRS), which includes navigation ...to errors in the implementation of underwater mission or to loss of expensive AUV, the task of timely faults detection is ...
6
Pedestrian dead reckoning for MARG navigation using a smartphone
... pedestrian dead reckoning (PDR)-based navigation algorithm by using magnetic, angular rate, and gravity (MARG) sensors which are equipped in existing commercial ...step errors of the random bouncing ...
9
Research on Improved Pedestrian Dead Reckoning Algorithms
... Heuristic drift elimination (HDE) algorithm can effectively enduce the direction error caused by gyroscope drift[8], but the restrictive condition of HDE algorithm is that: pedestrian paths must be vertical or parallel ...
8
Understanding the performance of zero velocity updates in MEMS based pedestrian navigation
... conventional dead reckoning method, for example in [3, 4], where the relative position is computed by integrating velocity data from normal mechanization equations from inertial navigation ...the ...
8
Waypoint following indoor robot
... correcting dead reckoning parameters, which are heading and step size for a pedestrian navigation ...The errors are measured from the inputs of an extended Kalman ...the dead reckoning ...
40
Step by step: reconstruction of terrestrial animal movement paths by dead-reckoning
... fluid-based dead-reckoning, is that there is no drift due to horizontal vectors such as wind or currents ...However, dead-reckoned data must be periodically ground- truthed because system ...
16
Bounding inconsistency using a novel threshold metric for dead reckoning update packet generation
... the dead reckoning prediction contract mechanism is questionable, as varying its value within a heavily loaded network has an uncertain impact on the value of ...no dead reckoning updates are ...
14
Exploring the use of local consistency measures as thresholds for dead reckoning update packet generation
... Human-to-human interaction across distributed applications requires that sufficient consistency be maintained among participants in the face of network characteristics such as latency and limited bandwidth. Techniques ...
9
Improving the accuracy of estimates of animal path and travel distance using GPS drift-corrected dead reckoning
... We have also shown that drift-corrected dead reckon- ing with a GPS drift correction update every 5 min pro- vides a median proportional accuracy of 1.002. This means that distance travelled is only overestimated ...
13
Survey on Auto-Calibration of Beacon Nodes in Indoor Location Computing
... The algorithm can also be applied to identify the displacement in the positions of the beacons. The mobile vehicles move slowly so any drift in the position of the beacon can be identified. Vehicles are aware of their ...
6
Reckoning the Vehicle using MATLAB
... Video analysis can be used to detect the moving vehicles in vehicle tracking system, traffic monitoring and surveillance... 3.6 VEHICLE TRACKING: Vehicle tracking can be done by continuo[r] ...
5
London at war and peace: crisis and reckoning, 1702 1951
... and reckoning converged most powerfully, in what contemporaries frequently called ‘the Great War’ that began in 1793 and ended finally in 1815? The French Revolutionary and Napoleonic wars without doubt had a wide ...
19
Reckoning Network Lifetime Ratio for Wireless Sensor Network
... Network Lifetime can be improved by making use of various techniques Opportunistic transmission and time scheduling, Energy Harvesting, Beamforming, Coverage and Connectivity constraint,[r] ...
10
Argumentation, Education and Reasoning
... Not only must there be, or come to be, a common database for dialogue to succeed; success also requires that the common reckoning constructed be logically correct[r] ...
17
George W. Bush and the Reckoning of American Conservatism
... Throughout the conservative ascendancy African American voters rejected the Republican Party by a factor of nine to one, or worse, with the conserva- tive record on civil rights playing[r] ...
19
Justice Postponed in Guatemala: Ríos Montt — and the United States — Evade Reckoning with the Past
... As she delivered the guilty verdict, Judge Jazmín Barrios ordered Guatemala’s attorney general to continue investigating the crimes for which Ríos Montt was convicted. This reckoning would mark the beginning, not ...
7