搜索结果: 1-15 共查到“航空、航天科学技术 Navigation”相关记录48条 . 查询时间(0.05 秒)
POSITION ACCURACY ANALYSIS OF A ROBUST VISION-BASED NAVIGATION
Navigation Space Resection 3D map
2018/6/4
Using images to determine camera position and attitude is a consolidated method, very widespread for application like UAV navigation. In harsh environment, where GNSS could be degraded or denied, imag...
AUTONOMOUS NAVIGATION OF SMALL UAVS BASED ON VEHICLE DYNAMIC MODEL
utonomous Navigation UAV Vehicle Dynamic Model Integration GNSS outage
2016/3/25
This paper presents a novel approach to autonomous navigation for small UAVs, in which the vehicle dynamic model (VDM) serves as the main process model within the navigation filter. The proposed metho...
POSITION ESTIMATION OF AERIAL VEHICLE BASED ON A VISION AIDED NAVIGATION SYSTEM
Navigation Pose Estimation Geo-Referencing Vision-Based Matching Fuzzy reasonning
2015/9/28
Automatic pose estimation remains to be one of the challenging problems in photogrammetry and computer vision. When other
systems (e.g. GPS and INS) are inadequate, and real time precise positioning...
Smart Environments and LBS to support pedestrian navigation
pedestrian navigation Smart Environments
2015/9/28
Within the last few years navigation systems have started to conquer the market in the Western World.
Especially in outdoor environments location based services play an important role for supporting...
NAVIGATION THROUGHOUT OBJECT SPACE ON WIRELESS TERMINAL
Spatial Information Sciences LBS GIS
2015/9/28
Application running on wireless terminals and providing interaction techniques through a graphical user interface requires a high
communication rate. Commonly such a user interaction involves just n...
Scintillations effects on satellite to Earth links for telecommunication and navigation purposes
telecommunication navigation purposes
2015/9/14
Radio wave scintillations are rapid fluctuations in both amplitude and phase of signals propagating through the atmosphere. GPS signals can be affected by these disturbances which can lead to a comple...
Analytical and Experimental Observations of Ionospheric and Tropospheric Decorrelation Effects for Differential Satellite Navigation during Precision Approach
Ionospheric Tropospheric Decorrelation Effects Differential Satellite Navigation Precision
2015/6/29
The introduction of the Global Positioning System(GPS) ushered in a new era of affordable precise navigation.Differential GPS (DGPS) corrections have reduced positioning errors from about 100 meters t...
GPS Supplemental Navigation Systems for Use During the Transition to a Sole-Means-GPS National Airspace System
GPS Supplemental Navigation Systems Sole-Means-GPS National Airspace System
2015/6/29
The current Federal Radio Navigation Plan presents a plan that includes phasing out of existing radio-navigation aids as part of the transition to sole-means-GPS navigation in the United States. GPS b...
A DME Based Area Navigation Systems for GPS/WAAS Interference Mitigation In General Aviation Applications
DME Based Area Navigation Systems GPS/WAAS Interference Mitigation Aviation Applications
2015/6/29
The Federal Aviation Administration is leading the National Airspace System modernization e ort, in part by supplanting traditional air trac services with GPS aided by the Wide and Local Area Aug- me...
A multitude of applications would benefit from precise indoor navigation. Anywhere from automating storage in warehouses to tracking firemen in hazardous environments would make such an endeavor worth...
A Local-Area GPS Pseudolite-Based Mars Navigation System
Local-Area GPS Pseudolite-Based Mars Navigation System
2015/6/29
Tasks envisioned for future generation Mars rovers sample collection, area survey, resource mining, habitat construction, etc.– will require greatly enhanced navigational capabilities over those posse...
Multi Aircraft Dynamics,Navigation and Operation
Multi Aircraft Dynamics Navigation Operation
2015/6/29
Air traffic control stands on the brink of a revolution. Fifty years from now, we will look back and marvel that we ever flew by radio beacons and radar alone, much as we now marvel that early aviatio...
Multi Aircraft Dynamics,Navigation and Operation
Multi Aircraft Dynamics Navigation Operation
2015/6/29
Air traffic control stands on the brink of a revolution. Fifty years from now, we will look back and marvel that we ever flew by radio beacons and radar alone, much as we now marvel that early aviatio...
Design and Performance Analysis of a Low-Cost Aided Dead Reckoning Navigation System
Dead Reckoning General Aviation DME GPS
2015/6/29
This paper presents an aided dead reckoning navigation system based on the fusion of inexpensive inertial, air data and magnetic sensors aided by a skeletal network of radio-navigation aids. In the fu...
There may be situations where positioning is required, but no service is available either due to signal blockage or cost of installing infrastructure.