General
Guanyi MA 
National Astronomical Observatories
Chinese Acedemy of Sciences
Email: guanyima@nao.cas.cn

Research Areas

Radio Physics, Space Physics, Satellite Navigation and Communication.

Education

Ph.D., Beijing Astronomical Observatory, CAS, Beijing, China, 1993.

M.Sc., Graduate School, Northwest Telecommunication Engineering Institute, Xi'an, China, 1988.

B.E., Department of Electromagnetic field Engineering, Northwest Telecommunication Engineering Institute, Xi'an, China, 1985.

Experience

   
Work Experience
May 2007-present: Professor, Satellite Communication and Navigation group, Applied Astronomy Division, NAOC, CAS.

Aug. 2004-Apr. 2007: Professor, Ionosphere and Radio Propagation Research group, Center for Space Science and Applied Research (CSSAR), Chinese Academy of Sciences.

Oct. 1995-Mar 2007: Research fellow, Ionosphere and Radio Propagation group, National Institute of Information and Communications Technology.

Dec. 1990-Jul. 1994: Research assistant and Ph. D. candidate, Beijing Astronomical Observatory, Chinese Academy of Sciences, Beijing, China.

Jan. 1988-Dec. 1990: Lecturer, Department of Physics, Xidian University, Xi’an, China.


Publications

   
Major Papers
1、Fan, J., G. Ma (2014), Characteristics of GPS Positioning Error with Non-uniform Pseudorange Error, GPS Solutions, DOI 10.1007/s10291-013-0359-z.
2、Jiangtao Fan, Guanyi Ma (2013), A Pre-despreading Delay-and-Multiplication Method for GPS Signal Acquisition, Journal of Shanghai Jiaotong University (in Chinese),, in press.
3、Guanyi Ma, Wei Gao, Jinghua Lia, Yanhong Chen, Hua Shen (2013), Estimation of GPS instrumental biases from small scale network, J. Adv. Space Res., http://dx.doi.org/10.1016/j.asr.2013.01.008
4、Li Jinghua, Ma Guanyi. Effect of ionospheric irregularities on GPS performanceChin, J. Space Sci. (in Chinese), 2013, 33(2): 158-169 
5、Tong Gan, Guanyi Ma (2013), An Algorithm for Signal Synthesis and Acquisition of CAPS Based on Dual-Linear Polarization Antennas, Astronomical Research & Technology (in Chinese), 10, 36-41.
6、Jinghua Li, Guanyi Ma, Takashi Maruyama, Zheng Li (2012), Mid-Latitude ionospheric irregularities persisting into late morning during the magnetic storm on 19 March 2001, J. Geophys. Res., doi:10.1029/2012JA017626
7、Xiao, Zhu; Bai, Jing; Ma, GuanYi; Fan, JiangTao; Yi, KeChu, Research on positioning enhancement scheme of CAPS via UWB pseudolite. Sci China-Phys Mech Astron, 2012, 55: 733-?737, doi: 10.1007/s11433-012-4650-8
8、Meng Wang, Guanyi Ma, Lihua Ma, Huli Shi (2012), A study on geometric feature of error ellipsoid in satellite positioning systems, Journal of Astronautics (in Chinese), 33, 1593-1600.
9、Guan-Yi Ma, Qing-Tao Wan, Tong Gan (2012), Communication-based positioning systems: past, present and prospects, Research in Astronomy and Astrophysics 12 (2012) 601-624.
10、Qingtao Wan, Guanyi Ma (2012),  Resource Allocation Scheme for Heterogeneous Services in Amplify-and-Forward OFDM Relay System, JOURNAL OF APPLIED SCIENCES — Electronics and Information Engineering (in Chinese), 30 (1), 7-13, DOI:10.3969/j.issn.0255-8297.2012.01.002.
11、Guoxiang Ai, Lihua Ma, Huli Shi, Guanyi Ma, Ji Guo, Zhigang Li, Xiaohui Li, Haitao Wu, and Yujing Bian (2011), Achieving Centimeter Ranging Accuracy with Triple-frequency Signals in C-band Satellite Navigation Systems, Journal of the Institute of Navigation, 58, 59 - 68.
12、Yanhong Chen, Jiancun Gong, Guanyi Ma, Wnegeng Huang, Siqing Liu (2010), The case studies about the localized plasma density enhancement at low latitude from satellite and GPS observations, Chinese Journal of Geophysics (in Chinese), 53, 2787-2795.
13、Lihua Lei, Huli Shi, Guanyi Ma (2009), CAPS satellite spread spectrum communication blind multi-user detecting system based on chaotic sequences, Science in China Series G: Physics Mechanics and Astronomy, 52, 339-345. 
14、Saito, S., T. Maruyama, M. Ishii, M. Kubota, G. Ma, Y. Chen, J. Li, C. Ha Duyen, and T. Le Truong (2008), Observations of small- to large-scale ionospheric irregularities associated with plasma bubbles with a transequatorial HF propagation experiment and spaced GPS receivers, J. Geophys. Res., 113, A12313, doi:10.1029/2008JA013149.
15、Yanhong Chen, Guanyi Ma, Wengeng Huang, Hua Shen and Jinghua Li (2008), Night-time total electron content ehancement at equatorial anomaly region in China, Advances in Space Research, 41, 617-623.
16、Guanyi Ma, Takashi Maruyama (2006), A super bubble detected by dense GPS network at east Asian longitudes, Geophys. Res. Lett., 33, L21103. 
17、Ma, X.F., Maruyama, T., Ma, G., Takeda, T.(2005),Three-dimensional ionospheric tomography using observation data of GPS ground receivers and ionosonde by neural network,Journal of Geophysical Research,110,A05308,doi:10.1029/2004JA010797.
18、Ma, X. F., T. Maruyama, G. Ma, and T. Takeda (2005), Determination of GPS receiver differential biases by neural network parameter estimation method, Radio Sci., 40, RS1002, doi:10.1029/2004RS003072.
19、Guanyi Ma, Takashi Maruyama (2003), Derivation of TEC and estimation of instrumental biases from GEONET in Japan, Ann. Geophys., 21, 2083-2093.
20、Guanyi Ma, Kiyoshi Igarashi, Klemens Hocke (2001), Mid-latitude winds in the mesosphere: a superposed epoch analysis over the geomagnetic storm times, Journal of Atmospheric and Solar-Terrestrial Physics, Vol. 63, 1993-2001.
21、Guanyi Ma, Katsude Marubashi, Takahashi Maruyama (1999), Heliospheric current sheet inclinations at Venus and Earth, Annales Geophysicae, Vol. 17, 642-649.

Students

已指导学生

高伟  硕士研究生  070802-空间物理学  

万庆涛  博士研究生  070420-天文技术与方法  

范江涛  博士研究生  070420-天文技术与方法  

甘彤  硕士研究生  070420-天文技术与方法  

王晓岚  博士研究生  070420-天文技术与方法  

李婧华  博士研究生  070420-天文技术与方法  

王萌  博士研究生  070420-天文技术与方法  

吕德潮  硕士研究生  070420-天文技术与方法  

张杰  博士研究生  070420-天文技术与方法  

卢伟俊  硕士研究生  0704Z1-天文技术与方法  

李奇  博士研究生  0704Z1-天文技术与方法  

贾静怡  硕士研究生  0704Z1-天文技术与方法  

卢伟俊  博士研究生  0704Z1-天文技术与方法  

傅维正  硕士研究生  0704Z1-天文技术与方法