Title:
UNAMBIGUOUS POSITIONING METHOD FOR SATELLITE NAVIGATION SYSTEM B1 WIDEBAND COMPOSITE SIGNAL, AND APPARATUS THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/155920
Kind Code:
A1
Abstract:
Provided are an unambiguous positioning method for a satellite navigation system B1 wideband composite signal and an apparatus thereof, which can determine observed quantities of a plurality of satellites by means of tracking B1C signals and B1I signals in B1 wideband composite signals, determine a code pseudo-range value and pseudo-range value from each satellite to a receiver by means of the observed quantities, utilize the pseudo-range values and the code pseudo-range values to calculate ambiguity floating point solutions of propagation delays of the B1 wideband composite signals, and obtain ambiguity integer solutions by means of the ambiguity floating point solutions, so as to correct erroneously estimated propagation delay ambiguities of the B1 wideband composite signals, thereby obtaining unambiguous pseudo-range values, and implementing unambiguous and highly precise positioning of the location of the receiver.
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Inventors:
YAO ZHENG (CN)
QI YUNHAN (CN)
LU MINGQUAN (CN)
QI YUNHAN (CN)
LU MINGQUAN (CN)
Application Number:
PCT/CN2023/077393
Publication Date:
August 24, 2023
Filing Date:
February 21, 2023
Export Citation:
Assignee:
UNIV TSINGHUA (CN)
International Classes:
G01S19/44
Foreign References:
| CN114527499A | 2022-05-24 | |||
| EP3141931A1 | 2017-03-15 | |||
| CN114063124A | 2022-02-18 | |||
| CN106918822A | 2017-07-04 | |||
| US20120026035A1 | 2012-02-02 | |||
| CN113703021A | 2021-11-26 | |||
| CN106291625A | 2017-01-04 | |||
| CN112578422A | 2021-03-30 | |||
| CN106291637A | 2017-01-04 |
Other References:
QI YUNHAN; YAO ZHENG; GAO YANG; LU MINGQUAN: "Robust unambiguous ranging technique for BDS-3 B1 wideband composite signals", GPS SOLUTIONS, SPRINGER BERLIN HEIDELBERG, BERLIN/HEIDELBERG, vol. 26, no. 4, 5 August 2022 (2022-08-05), Berlin/Heidelberg, XP037927205, ISSN: 1080-5370, DOI: 10.1007/s10291-022-01296-2
GAO, YANG; YAO, ZHENG; LU, MINGQUAN: "High-precision unambiguous tracking technique for BDS B1 wideband composite signal", NAVIGATION: JOURNAL OF THE INSTITUTE OF NAVIGATION, INSTITUTE OF NAVIGATION, FAIRFAX, VA., US, vol. 67, no. 3, 1 September 2020 (2020-09-01), US , pages 633 - 650, XP056016069, ISSN: 0028-1522, DOI: https://doi.org/10.1002/navi.377
WENDEL, J.; SCHUBERT, F. M.; HAGER, S.: "A Robust Technique for Unambiguous BOC Tracking", NAVIGATION: JOURNAL OF THE INSTITUTE OF NAVIGATION, INSTITUTE OF NAVIGATION, FAIRFAX, VA., US, vol. 61, no. 3, 1 September 2014 (2014-09-01), US , pages 179 - 190, XP056007289, ISSN: 0028-1522, DOI: 10.1002/navi.62
GAO, YANG; YAO, ZHENG; LU, MINGQUAN: "High-precision unambiguous tracking technique for BDS B1 wideband composite signal", NAVIGATION: JOURNAL OF THE INSTITUTE OF NAVIGATION, INSTITUTE OF NAVIGATION, FAIRFAX, VA., US, vol. 67, no. 3, 1 September 2020 (2020-09-01), US , pages 633 - 650, XP056016069, ISSN: 0028-1522, DOI: https://doi.org/10.1002/navi.377
WENDEL, J.; SCHUBERT, F. M.; HAGER, S.: "A Robust Technique for Unambiguous BOC Tracking", NAVIGATION: JOURNAL OF THE INSTITUTE OF NAVIGATION, INSTITUTE OF NAVIGATION, FAIRFAX, VA., US, vol. 61, no. 3, 1 September 2014 (2014-09-01), US , pages 179 - 190, XP056007289, ISSN: 0028-1522, DOI: 10.1002/navi.62
Attorney, Agent or Firm:
INSIGHT INTELLECTUAL PROPERTY LIMITED (CN)
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