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Carrier Differential GPS for Real-Time Control of Large Flexible Structures
Carrier Differential GPS Real-Time Contro Large Flexible Structures
2015/6/29
Current lab tests demonstrate vibration and orientation control of highly exible vehicles using only the GPS carrier to measure motion. A 30-foot long test structure has been constructed that is suspe...
GPS Receiver Performance Using Inertial-Aided Carrier Tracking Loop
GPS Receiver Performance Inertial-Aided Carrier Tracking Loop
2015/6/26
Radio frequency interference (RFI) has been a perplexing problem, affecting the navigation quality of the Global Positioning System (GPS). The presence of the RFI, or even hostile jamming, will reduce...
Adaptive Carrier Smoothing Using Code and Carrier Divergence
Adaptive Carrier Smoothing Carrier Divergence
2015/6/25
This paper investigates an adaptive carrier smoothing for a single frequency GPS user. Using a Hatch filter in a single frequency receiver reduces multipath and receiver noise but introduces an induce...
Model Analysis on the Performance of an Inertial Aided FLL-Assisted-PLL Carrier-Tracking Loop in the Presence of Ionospheric Scintillations
Model Analysis Performance Inertial Aided FLL-Assisted-PLL Carrier-Tracking Loop Presence Ionospheric Scintillations
2015/6/25
Ionospheric scintillation has a significant impact on the availability of Global Positioning System (GPS) and Wide Area Augmentation System (WAAS), especially when the GPS/WAAS receiver is dynamically...
GPS Carrier-Phase Time Transfer Using Single-Difference Integer Ambiguity Resolution
GPS Carrier-Phase Time Transfer Single-Difference Integer Ambiguity Resolution
2009/9/3
GPS is widely used for time and frequency transfer. To estimate the clock difference between two ground stations, a single baseline solution can be performed using external products for the modelling ...
Joint L-/C-Band Code and Carrier Phase Linear Combinations for Galileo
Joint L-/C-Band Code Carrier Phase Linear Combinations Galileo
2009/9/3
Linear code combinations have been considered for suppressing the ionospheric error. In the L-band, this leads to an increased noise floor. In a combined L- and C-band (5010–5030 MHz) approach, ...