Fast Time Synchronization Strategy for Mitigating Collision of Initial Entry Message over Link-16

2014 ◽  
Author(s):  
Sangsoon Ko ◽  
Hoki Baek ◽  
Jaesung Lim
Keyword(s):  
Time Synchronization ◽  
Fast Time ◽  
Initial Entry

scholarly journals Fast Time Synchronization on Tens of Picoseconds Level Using Uncombined GNSS Carrier Phase of Zero/Short Baseline

Sensors ◽  
2020 ◽  
Vol 20 (17) ◽  
pp. 4882
Author(s):  
Yinghao Zhao ◽  
Letao Zhou ◽  
Wei Feng ◽  
Shaoguang Xu
Keyword(s):  
Carrier Phase ◽  
Time Synchronization ◽  
Satellite System ◽  
Fast Time ◽  
Short Baseline ◽  
Variation Characteristics ◽  
Single Difference ◽  
Short Baselines ◽  
Transfer Method ◽  
Global Navigation Satellite

Since the observation precision of the Global Navigation Satellite System (GNSS) carrier phase is on the order of millimeters, if the phase ambiguity is correctly solved, while calibrating the receiver inter-frequency bias, time synchronization on the order of tens of picoseconds is expected. In this contribution, a method that considers the prior constraints of the between-receiver inter-frequency bias (IFB) and its random variation characteristics is proposed for the estimation of the between-receiver clock difference, based on the uncombined GNSS carrier phase and pseudorange observations of the zero and short baselines. The proposed method can rapidly achieve the single-difference ambiguity resolution of the zero and short baselines, and then obtain the high-precision relative clock offset, by using only the carrier phase observations, along with the between-receiver IFBs being simultaneously determined. Our numerical tests, carried out using GNSS observations sampled every 30 s by a dedicatedly selected set of zero and short baselines, show that the method can fix the between-receiver single-difference ambiguity successfully within an average of fewer than 2 epochs (interval 30 s). Then, a clock difference between two receivers with millimeter precision is obtained, achieving time synchronization on tens of picoseconds level, and deriving a frequency stability of 5 × 10−14 for averaging times of 30,000 s. Furthermore, the proposed approach is compared with the precise point positioning (PPP) time transfer method. The results show that, for different types of receivers, the agreement between the two methods is between −6.7 ns and 0.2 ns.

Enhancing warrior ethos in initial entry training

2006 ◽  
Author(s):  
T. Brunye ◽  
G. Riccio ◽  
J. Sidman ◽  
A. Darowski ◽  
F. J. Diedrich
Keyword(s):  
Warrior Ethos ◽  
Initial Entry

Fragmental weight-conservation combining scheme for statistical signal transmissions under fast time-varying channels

2020 ◽  
Vol 17 (1) ◽  
pp. 118-128
Author(s):  
Xingwei Wang ◽  
Ting Zhou ◽  
Tianheng Xu ◽  
Songlin Feng ◽  
Honglin Hu ◽  
...  
Keyword(s):  
Fast Time ◽  
Time Varying ◽  
Time Varying Channels

Analysis of Airport Surface Schedulers Using Fast-time Simulation

2013 ◽  
Author(s):  
Justin V. Montoya ◽  
Robert D. Windhorst ◽  
Steve Stroiney ◽  
Katy Griffin ◽  
Aditya Saraf ◽  
...  
Keyword(s):  
Fast Time ◽  
Time Simulation
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