caa a22 4500 606162399 CHVBK 20210128100639.0 cr unu---uuuuu 210128e20151001xx s 000 0 eng 10.1007/s10291-014-0410-8 doi (NATIONALLICENCE)springer-10.1007/s10291-014-0410-8 Kinematic single-frequency relative positioning for LEO formation flying mission [Elektronische Daten] [Pei Chen, Leizheng Shu, Ran Ding, Chao Han] A kinematic GPS-relative navigation estimator has been developed for LEO formation flying applications. In order to accelerate the double-difference integer ambiguity fixing, this estimator processes both the L1 single-frequency code and carrier phase measurements and uses a recursive least-squares approach for improving the float ambiguity accuracy. Actual flight data from SJ-9 formation flying mission performed by China in 2012 are used to assess the estimator performance. The receiver noise and ionospheric effects assessment, the ambiguity resolution as well as the relative positioning performance are investigated. Results show that the proposed algorithm can improve the convergence to the correct ambiguities by 2 or 3 measurement epochs with the local vertical ionospheric delay for each satellite included in the estimator state, and that millimeter level relative positioning precision can benefit from considering differential ionospheric effects. Springer-Verlag Berlin Heidelberg, 2014 Single-frequency GPS nationallicence Kinematic relative positioning nationallicence Recursive least-squares nationallicence Ambiguity fixing nationallicence Chen Pei School of Astronautics, Beihang University, 100191, Beijing, China aut Shu Leizheng School of Astronautics, Beihang University, 100191, Beijing, China aut Ding Ran School of Astronautics, Beihang University, 100191, Beijing, China aut Han Chao School of Astronautics, Beihang University, 100191, Beijing, China aut GPS Solutions Springer Berlin Heidelberg 19/4(2015-10-01), 525-535 1080-5370 19:4<525 2015 19 10291 https://doi.org/10.1007/s10291-014-0410-8 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10291-014-0410-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Chen Pei School of Astronautics, Beihang University, 100191, Beijing, China aut NATIONALLICENCE 700 1- Shu Leizheng School of Astronautics, Beihang University, 100191, Beijing, China aut NATIONALLICENCE 700 1- Ding Ran School of Astronautics, Beihang University, 100191, Beijing, China aut NATIONALLICENCE 700 1- Han Chao School of Astronautics, Beihang University, 100191, Beijing, China aut NATIONALLICENCE 773 0- GPS Solutions Springer Berlin Heidelberg 19/4(2015-10-01), 525-535 1080-5370 19:4<525 2015 19 10291