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Evaluation of the positioning performance of multi-GNSS RT-PPP method
Arabian Journal of Geosciences, 2021S. Alcay, Muzeyyen Turgut
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The Measurement of Wave Parameter Based on PPP Method
2013Filtering method was selected to eliminate the impact of long-term errors which include the tide, systematic errors and other factors based on GPS Precise Point Positioning (PPP) data processing method, and accurate wave height was get finally. Fast Fourier Transform (FFT) analysis method was used to calculate average period of the wave, the average ...
Huayi Zhang +3 more
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A mild and efficient method to prepare oligophenylenes (PPPs)
European Polymer Journal, 2018Abstract In the present work we developed a practical, faster, and more sustainable way to prepare conjugated materials, derived from poly-p-phenylenes (PPPs), using 10% palladium on carbon as catalyst and distilled water as solvent under microwave heating for 3 h.
Rebeca Rocha Rodrigues +2 more
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A Projection Pursuit Combined Method for PPP Risk Evaluation
2017Risk assessment is very crucial to the building and operation of PPP (Public-Private-Partnership) project in its long-term cooperation during the long life circle. Based on the risk factors and their influences, the traditional risk assessment method of PPP project is achieved by the experts experience, Therefore, the evaluation result is subjective ...
Xinli Zhang, Tianjin Wang, Sihan Li
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Two-stage decision-making method of PPP project model selection
2012 IEEE International Conference on Computer Science and Automation Engineering, 2012PPP (Public-Private Partnership) is applied widely in infrastructure development and has many different models. The purpose of this research is to develop a two-stage decision-making method to select an appropriate PPP model for a specific public project.
null Weihua Yang +3 more
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A method to evaluate credit risk for banks under PPP project finance
Engineering Construction and Architectural Management, 2019Purpose The purpose of this paper is to provide a method that can better evaluate the credit risk (CR) under PPP project finance. Design/methodology/approach The principle to evaluate the CR of PPP projects is to calculate three critical indicators ...
Xiuqing Wang +3 more
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Utilization PPP method in aircraft positioning in post-processing mode
Aircraft Engineering and Aerospace Technology, 2018Purpose The purpose of this paper is to study the implementation of GNSS technique in aviation for recovery of aircraft’s position using Precise Point Positioning (PPP) method. Design/methodology/approach The aircraft’s coordinates in ellipsoidal frame were obtained based on GPS code and phase observations for PPP method.
Kamil Krasuski +2 more
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A New Method for Real-Time PPP Correction Updates
2016Real-time Precise Point Positioning (PPP) is expected to find more and more applications with various precise satellite orbit and clock products becoming more easily and reliably available. A crucial aspect for current real-time PPP system is the transmission of precise satellite orbit and clock correction data to the PPP users at a high update rate ...
Yang Gao, Wentao Zhang, Yihe Li
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ALGORITHM FOR SELECTING METHODS FOR FINANCING PPP CLIMATE PROJECTS
EKONOMIKA I UPRAVLENIE: PROBLEMY, RESHENIYAThe article examines current issues of financing climate PPP projects. Materials and methods. The article uses international databases and a systematic review of materials from Russian and international scientific publications. Results. Methods are classified, principles are defined, and an algorithm for selecting methods for financing climate PPP ...
Sergey G. Sternik, Stanislav Yu. Semenov
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Analysis of Velocity Estimation Methods Based on BDS PPP
2019Position difference, Doppler observation and time-differenced carrier phase (TDCP) are three commonly used velocity estimation methods. Since the average velocity of two epochs is obtained both in the position difference and TDCP velocity estimation, the accuracy is affected by the carrier’s kinematics, large deviation will appear in high dynamic ...
Shunli Duan +3 more
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