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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...
Optimizing WAAS Accuracy/Stability For a Single Frequency Receiver
Optimizing WAAS Accuracy/Stability Single Frequency Receiver
2015/6/26
The Wide Area Augmentation System (WAAS) provides accuracy (95%) to better than 1m in horizontal and 2m in vertical, which is quite an improvement compared to the stand-alone GPS accuracy and well wit...
Navigation Accuracy and Interference Rejection for an Adaptive GPS Antenna Array
Navigation Accuracy Interference Rejection Adaptive GPS Antenna Array
2015/6/25
In the Joint Precision Approach and Landing System (JPALS) both the differential GPS reference station and the airborne user will employ Controlled Reception Pattern Array (CRPA) antennas.
Distance Measuring Equipment Accuracy Performance Today and for Future Alternative Position Navigation and Timing (APNT)
Distance Measuring Equipment Accuracy Performance Future Alternative Position Navigation Timing (APNT)
2015/6/24
Distance Measuring Equipment (DME) is seeing renewed interest for its ability to support future aviation navigation and surveillance needs. It is one of the primary technologies being examined by the ...
Accuracy Evaluation of Stereo Vision Aided Inertial Navigation for Indoor Environments
Inertial Navigation Indoor Navigation Stereo Vision Multisensor Data Fusion
2014/4/21
Accurate knowledge of position and orientation is a prerequisite for many applications regarding unmanned navigation, mapping, or environmental modelling. GPS-aided inertial navigation is the preferre...
Surface Accuracy Evaluation of Planar Antenna Structures Stretched by Inflatable Torus
Artificial Satellite Large Satellite Antenna Planar Antenna
2009/8/19
The next generation of geo-stationary mobile communication satellites will, most likely, use large flexible planar antennas. For this reason there is a strong interest in using very thin, membrane typ...