Research of Precise Timing in Single Receiver Pseudorange Positioning Based on GPS System

2013 ◽  
pp. 211-218
Author(s):  
Hehuan Zhu ◽  
Xiangyang Wu ◽  
Weirong Chen ◽  
Shuguo Pan
Keyword(s):  
Precise Timing ◽  
Gps System ◽  
Single Receiver

scholarly journals A brief description of the GPS architecture

2020 ◽  
pp. 12-16
Author(s):  
Paul Medina-Castro ◽  
Camilo Caraveo-Mena ◽  
Norma Alicia Barboza-Tello ◽  
Raúl Loredo-Medina
Keyword(s):  
Satellite System ◽  
Gps Receiver ◽  
Precise Timing ◽  
Gps System

The GPS is a radio-satellite system that allows to the GPS receiver to figure out its tridimensional position on the globe (latitude, longitude, and elevation), as well as allows it to determine its velocity and to make precise timing measurements. This article describes the architecture of the GPS system for the non- specialized reader. The objective is that the lector has an idea of all that happens when using some equipment or application based on this technology.

scholarly journals MOST Spacebased Photometry of HD 189733: Precise Timing Measurements for Transits Across an Active Star

2008 ◽  
Vol 4 (S253) ◽  
pp. 459-461
Author(s):  
E. Miller-Ricci ◽  
J. F. Rowe ◽  
D. Sasselov ◽  
J. M. Matthews ◽  
R. Kuschnig ◽  
...  
Keyword(s):  
Orbital Period ◽  
Mass Range ◽  
Active Star ◽  
Precise Timing ◽  
Resonant Orbits ◽  
The Earth ◽  
Test Spot ◽  
Transit Times ◽  
Nearly Continuous ◽  
Parent Star

AbstractWe have measured transit times for HD 189733 passing in front of its bright (V = 7.67) chromospherically active and spotted parent star. Nearly continuous broadband photometry of this system was obtained with the MOST (Microvariability & Oscillations of STars) space telesope during 21 days in August 2006, monitoring 10 consecutive transits. We have used these data to search for deviations from a constant orbital period which can indicate the presence of additional planets in the system that are as yet undetected by Doppler searches. We find no variations above the level of ±45 s, ruling out planets in the Earth-to-Neptune mass range in a number of resonant orbits. We find that a number of complications can arise in measuring transit times for a planet transiting an active star with large star spots. However, such transiting systems are also useful in that they can help to constrain and test spot models. This has implications for the large number of transiting systems expected to be discovered by the CoRoT and Kepler missions.

Application of the GPS system for preliminary satellite orbit determination

1997 ◽  
Vol 19 (11) ◽  
pp. 1671-1675
Author(s):  
A.P.M Chiaradia ◽  
S da Silva Fernandes ◽  
R.Vilhena de Moraes
Keyword(s):  
Orbit Determination ◽  
Satellite Orbit ◽  
Gps System
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