## Abbreviations  
Acronym  
ACs  
AR  
AC  
CSNO. Beidou Navigation Satellite System Signal in Space Interface Control Document Open Service Signal (Version 2.1). Available online: [[http://www.beidou.gov.cn/xt/gfox/201710/P020171202693088949056.pdf](http://www.beidou.gov.cn/xt/gfox/201710/P020171202693088949056.pdf)]([http://www.beidou.gov.cn/xt/gfox/201710/P020171202693088949056.pdf](http://www.beidou.gov.cn/xt/gfox/201710/P020171202693088949056.pdf)) (accessed on 12 September 2017). * (3)CSNO. China's BeiDou Navigation Satellite System. Available online: [[http://www.beidou.gov.cn/xt/gfox/201712/P020171221333863515306.pdf](http://www.beidou.gov.cn/xt/gfox/201712/P020171221333863515306.pdf)]([http://www.beidou.gov.cn/xt/gfox/201712/P020171221333863515306.pdf](http://www.beidou.gov.cn/xt/gfox/201712/P020171221333863515306.pdf)) (accessed on 12 September 2017). * (4)[PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]. Characterization of Compass M-1 signals. _GPS Solut._**2012**, _16_, 117-126. [CrossRef]
* (5) [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] Precise orbit determination of Beidou Satellites with precise positioning. _Sci. China Earth Sci._**2012**, _55_, 1079-1086. [CrossRef]
* (6)[PERSON]; [PERSON] BeiDou satellite-induced code pseudorange variations: Diagnosis and therapy. _GPS Solut._**2014**, _19_, 639-648. [CrossRef]
* (7) [PERSON]; [PERSON]; [PERSON]; [PERSON] Precise orbit determination for quad-constellation satellites at Wuhan University: Strategy, result validation, and comparison. _J. Geod._**2016**, _90_, 143-159. [CrossRef]
* (8) [PERSON]; [PERSON]; [PERSON]; [PERSON] Modeling and assessment of triple-frequency BDS precise point positioning. _J. Geod._**2016**, _90_, 1223-1235. [CrossRef]
* (9) [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] Accuracy and reliability of multi-GNSS real-time precise positioning: GPS, GLONASS, BeiDou, and Galileo. _J. Geod._**2015**, _89_, 607-635. [CrossRef]
* (10) [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] Analysis of BeiDou Satellite Measurements with Code Multipath and Geometry-Free Ionosphere-Free Combinations. _Sensors_**2016**, _16_, 123. [CrossRef] [PubMed]
* (11) [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] Initial assessment of the COMPASS/BeiDou-3: New-generation navigation signals. _J. Geod._**2017**, _91_, 1225-1240. [CrossRef]
* (12) [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] The Preliminary Result and Analysis for BD Orbit Determination with Inter-satellite Link Data. _Acta Geodetica e Cartographica Sinica_**2017**, _46_, 547-553. * (13) [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] Initial Results of the Precise Orbit Determination for the New-Generation BeiDou Satellites (BeiDou-3) Based on the iGMAS Network. _ISPRS Int. J. Geo-Inf._**2016**, \(5\), 196. [CrossRef]
* (14) [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] Performance of BDS-3: Measurement Quality Analysis, Precise Orbit and Clock Determination. _Sensors_**2017**, _17_, 1233. [CrossRef] [PubMed]
* (15) [PERSON]; [PERSON]; [PERSON] First Signals of BeiDou Phase 3 Acquired at Ispra, Italy. 21 August 2015. Available online: [[http://gpsworld.com/first-signals-of-beidou-phase-3-acquired-at-ispra-italy/](http://gpsworld.com/first-signals-of-beidou-phase-3-acquired-at-ispra-italy/)]([http://gpsworld.com/first-signals-of-beidou-phase-3-acquired-at-ispra-italy/](http://gpsworld.com/first-signals-of-beidou-phase-3-acquired-at-ispra-italy/)) (accessed on 12 September 2017). * (16) [PERSON] New BeiDou TMBOC Signal Tracked; Similar to Future GPS LIC Structure. Available online: [[http://gpsworld.com/new-beidou-tmboc-signal-tracked-similar-to-future-gpss-1](http://gpsworld.com/new-beidou-tmboc-signal-tracked-similar-to-future-gpss-1) lc-structure/]([http://gpsworld.com/new-beidou-tmboc-signal-tracked-similar-to-future-gpss-1](http://gpsworld.com/new-beidou-tmboc-signal-tracked-similar-to-future-gpss-1) lc-structure/) (accessed on 12 September 2017).