Study on GPS timing and frequency calibration method and the test results

Junxiang Zhao; Jianhui Li; Qing Chang; Qishan Zhang

Study on GPS timing and frequency calibration method and the test results

Junxiang Zhao^*
, Jianhui Li
, Qing Chang
, Qishan Zhang

^*Corresponding author for this work

School of Electronic and Information Engineering

Beihang University
Beijing BDSTAR Navigation Co.

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

To solve the problem of time synchronization and frequency calibration among different stations in an integrated multi-target tracking system, two methods using global positioning system (GPS) through observing one or more GPS satellites in common view are put forward. Calculation formulas are derived, the impacts on time synchronization of error sources such as ephemeris error, satellite clock error, ionospheric error, tropospheric error, multi-path effects and receiver's hardware delay are analyzed. To validate time synchronization and frequency calibration precision, some related tests were carried out. Comparing with Cesium clock, it shows that nanosecond level time synchronization can be obtained and the precision of frequency calibration is better than 5.0×10^-11 using GPS. More precise time synchronization and frequency calibration can be achieved by using multi-satellites in common view than using single satellite.

Original language	English
Pages (from-to)	762-766
Number of pages	5
Journal	Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics
Volume	30
Issue number	8
State	Published - Aug 2004

Keywords

Error analysis
Frequency reference
Global positioning system (GPS)
Time synchronization

Cite this

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title = "Study on GPS timing and frequency calibration method and the test results",

abstract = "To solve the problem of time synchronization and frequency calibration among different stations in an integrated multi-target tracking system, two methods using global positioning system (GPS) through observing one or more GPS satellites in common view are put forward. Calculation formulas are derived, the impacts on time synchronization of error sources such as ephemeris error, satellite clock error, ionospheric error, tropospheric error, multi-path effects and receiver's hardware delay are analyzed. To validate time synchronization and frequency calibration precision, some related tests were carried out. Comparing with Cesium clock, it shows that nanosecond level time synchronization can be obtained and the precision of frequency calibration is better than 5.0×10-11 using GPS. More precise time synchronization and frequency calibration can be achieved by using multi-satellites in common view than using single satellite.",

keywords = "Error analysis, Frequency reference, Global positioning system (GPS), Time synchronization",

author = "Junxiang Zhao and Jianhui Li and Qing Chang and Qishan Zhang",

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T1 - Study on GPS timing and frequency calibration method and the test results

AU - Zhao, Junxiang

AU - Li, Jianhui

AU - Chang, Qing

AU - Zhang, Qishan

PY - 2004/8

Y1 - 2004/8

N2 - To solve the problem of time synchronization and frequency calibration among different stations in an integrated multi-target tracking system, two methods using global positioning system (GPS) through observing one or more GPS satellites in common view are put forward. Calculation formulas are derived, the impacts on time synchronization of error sources such as ephemeris error, satellite clock error, ionospheric error, tropospheric error, multi-path effects and receiver's hardware delay are analyzed. To validate time synchronization and frequency calibration precision, some related tests were carried out. Comparing with Cesium clock, it shows that nanosecond level time synchronization can be obtained and the precision of frequency calibration is better than 5.0×10-11 using GPS. More precise time synchronization and frequency calibration can be achieved by using multi-satellites in common view than using single satellite.

AB - To solve the problem of time synchronization and frequency calibration among different stations in an integrated multi-target tracking system, two methods using global positioning system (GPS) through observing one or more GPS satellites in common view are put forward. Calculation formulas are derived, the impacts on time synchronization of error sources such as ephemeris error, satellite clock error, ionospheric error, tropospheric error, multi-path effects and receiver's hardware delay are analyzed. To validate time synchronization and frequency calibration precision, some related tests were carried out. Comparing with Cesium clock, it shows that nanosecond level time synchronization can be obtained and the precision of frequency calibration is better than 5.0×10-11 using GPS. More precise time synchronization and frequency calibration can be achieved by using multi-satellites in common view than using single satellite.

KW - Error analysis

KW - Frequency reference

KW - Global positioning system (GPS)

KW - Time synchronization

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M3 - 文章

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JO - Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics

JF - Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics

IS - 8

ER -

Study on GPS timing and frequency calibration method and the test results

Abstract

Keywords

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