Results 21 to 30 of about 90,565 (276)
RELIABILITY OF THE GPS CARRIER-PHASE FIX SOLUTION UNDER HARSH CONDITION [PDF]
Once the unknown integer ambiguity values are resolved, the GPS carrier phase observation will be transformed into a millimeter-level precision measurement. However, GPS observation are prone to a variety of errors, making it a biased measurement.
M. I. Mohd Dzukhi +5 more
doaj +1 more source
Sequential Ambiguity Resolution Method for Poorly-Observed GNSS Data
Integer ambiguity resolution is required to obtain precise coordinates for the global navigation satellite system (GNSS). Poorly observed data cause unfixed integer ambiguity and reduce the coordinate accuracy.
Haiyang Li +3 more
doaj +1 more source
An Attitude Navigation System Based on the GPS [PDF]
In this paper, the use of multi-GPS receiver to estimate the parameters ofattitude (orientation) of a platform is developed. The GPS receiver has twomeasurements; pseudorange and carrier phase.
Saad A-R. Makki, Mushtaq Talib Abd
doaj +1 more source
An Efficient BDS-3 Long-Range Undifferenced Network RTK Positioning Algorithm
In 2020, the BeiDou-3 global navigation satellite system (BDS-3) was officially completed and put into service. Currently, network real-time kinematic (RTK) technology is considered the main means through which to improve the positioning accuracy of the ...
Huizhong Zhu +3 more
doaj +1 more source
Influence of Pseudorange Biases on Single Epoch GNSS Integer Ambiguity Resolution
Model strength and biases are two main factors for GNSS integer ambiguity resolution. Due to the nonideal GNSS signal, the receiver's observations will be biased.
Xiaozhou Ye +4 more
doaj +1 more source
Using dispersion-induced group delay to solve the integer ambiguity problem: a theoretical analysis [PDF]
This paper describes a novel approach for solving the integer ambiguity problem when the adjacent pulse repetition interval length (APRIL) from a femtosecond optical frequency comb (FOFC) is used as a length scale.
Wei D., Xiao M., Aketagawa M.
doaj +1 more source
The real-time integer-ambiguity resolution of the carrier-phase observation is one of the most effective approaches to enhance the accuracy of real-time precise point positioning (PPP), kinematic precise orbit determination (KPOD), and reduced-dynamic ...
Zhiyu Wang +7 more
doaj +1 more source
High-precision indoor fast positioning algorithm based on carrier phase
In order to improve the positioning accuracy and the speed of position solution in indoor wireless environment, a high-precision indoor fast positioning algorithm based on carrier phase was proposed.By introducing the reference terminal, the influence of
Shaoshuai FAN +3 more
doaj +2 more sources
Indoor Carrier Phase Positioning Technology Based on OFDM System
Carrier phase measurement is a ranging technique that uses the receiver to determine the phase difference between the received signal and the transmitted signal. Carrier phase ranging has a high resolution; thus, it is an important research direction for
Zhenyu Zhang, Shaoli Kang, Xiang Zhang
doaj +1 more source
Precise point positioning with ambiguity resolution (PPP-AR) based on multiple global navigation satellite system (multi-GNSS) constellations is an important high-precision positioning tool.
Songfeng Yang +3 more
doaj +1 more source

