BeiDou Navigation Satellite System in Challenge Environment Using an Atomic Clock and Barometric Altimeter

Bo LI; Chao XU; Xiaohui LI; Huijun ZHANG; Wenli WANG

doi:10.11999/JEIT171181

Volume 40 Issue 9

Aug. 2018

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Article Navigation > Journal of Electronics & Information Technology > 2018 > 40(9): 2212-2218

Bo LI, Chao XU, Xiaohui LI, Huijun ZHANG, Wenli WANG. BeiDou Navigation Satellite System in Challenge Environment Using an Atomic Clock and Barometric Altimeter[J]. Journal of Electronics & Information Technology, 2018, 40(9): 2212-2218. doi: 10.11999/JEIT171181

Citation:

Bo LI, Chao XU, Xiaohui LI, Huijun ZHANG, Wenli WANG. BeiDou Navigation Satellite System in Challenge Environment Using an Atomic Clock and Barometric Altimeter[J]. Journal of Electronics & Information Technology, 2018, 40(9): 2212-2218. doi: 10.11999/JEIT171181

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BeiDou Navigation Satellite System in Challenge Environment Using an Atomic Clock and Barometric Altimeter

doi: 10.11999/JEIT171181

Bo LI^{1, 2
,
,},
Chao XU^{1, 2},
Xiaohui LI¹,
Huijun ZHANG¹,
Wenli WANG¹

1.
National Time Service Center, Chinese Academy of Sciences, Xi’an 710600, China
2.
University of Chinese Academy of Sciences, Beijing 100039, China

Funds: Defense Science and Technology Innovation Fund (CXJJ-17-M110)

Received Date: 2017-12-18
Rev Recd Date: 2018-05-18

Available Online: 2018-07-12

Publish Date: 2018-09-01

Abstract

Abstract

The vertical positioning accuracy of BeiDou satellite navigation System (BDS) and the continuity of receiver in the challenge environment can not satisfy the user demand. If atomic clocks are used in the receiver, the high stability of the atomic clock can be used for long time and high precision prediction of receiver clock bias. The positioning accuracy and continuity are improved by using atomic clock and barometric altimeter. This article first analyzes the atomic clocks and barometric altimeter aided BDS positioning algorithm; Then, correction method is proposed for initialization of barometric altimeter, and analysis on the difference of noise type clock is used to determine the clock bias prediction method; Finally, positioning experiment of the atomic clock and barometric altimeter aided BDS in simulation challenge environment is carried out, and the positioning result is analyzed. The results show that BDS can positioning solution to track two visible satellites, and vertical positioning accuracy is significantly improved. The positioning error in the vertical direction is decreased from 8.2 m (RMSE) to 5.2 m, and the fluctuation of the positioning results decreased from 4.6 m to 0.8 m.
- BeiDou navigation satellite System (BDS),
- Challenge environment,
- Double satellite positioning,
- Atomic clock,
- Barometric altimeter

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References(16)

References

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