多星座-GNSS：方法，优势，挑战和地球科学应用

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Announcement of a Special Issue of Advances in Space Research on

Multi-constellation GNSS: Methods, Benefits, Challenges, and Geosciences Applications

Papers are invited for a special topical issue of Advances in Space Research (ASR) entitled"Multi-constellation GNSS: Methods, Benefits, Challenges,and Geosciences Applications".

This coming special issue will be an assemblage of interdisciplinary research aiming to cover the whole processing chain related to this topic, from methods and high-level products to Geosciences research.  It will include (but is not limited to) the following topics:

· Models and algorithms for the multi-frequency and multi-constellation GNSS data processing, particularly on observation model, stochastic model, and integer ambiguity resolution.

· Strategies and products for the biases and atmospheric delays in multi-GNSS, e.g., Differenced Code Biases (DCB), Inter-frequency Biases (IFB), Inter-system Biases (ISB), Uncalibrated phase delays (UPD), satellite clock for multi-frequency, troposphere, ionosphere, phase center correction for receiver’s and satellite’s antenna.

· Models and strategy for Multi-GNSS precise orbit and clock determination, e.g., satellite attitude, solar radiation pressure, earth re-radiation pressure, antenna thrust, combination of multi-GNSS clock and orbit products, determination and prediction of real-time orbit and clock, satellite clock analysis, monitoring and assessment of Multi-GNSS system.

· Algorithm and approaches for Positioning, Velocity, and Timing (PVT) with Multi-GNSS, e.g., Time synchronization, GNSS system time establishment and keeping, Real-time Differenced (RTD), Real-time Kinematic (RTK), Precise Point Positioning (PPP), PPP with integer ambiguity resolution (PPP-AR), PPP regional augmentation.

· GNSS and other sensors (accelerometers, INS, etc.) integration for high-rate applications, Multi-sensor integration for EOS platforms.

· Multi-GNSS benefit for Geosciences, Monitoring crustal deformation and the seismic cycle of active faults, Severe weather event monitoring, Natural hazards early-warning systems, precise agriculture.

Papers must be submitted electronically to http://ees.elsevier.com/asr.  To ensure that all manuscripts are correctly identified for inclusion into the special issue, authors must select "Special Issue: Multi-GNSS" when they reach the "Article Type" step in the submission process.  The deadline for submissions is 30 November 2017.  

Dr. Xingxing Li ([e-mail]) and Dr. Jing Guo ([e-mail]) are the Guest Editors for this special issue.  Questions can be directed to Dr. Li and Guo or to the Co-Editor for Special Issues, Dr. Peggy Ann Shea ([e-mail]).

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