Chen Xu, Nico Sneeuw, and Michael G. Sideris (2006); Joint SST and SGG Gravity Field Solution Using Torus Approach, Proceeding of IGFS International Symposium (Gravity Field of the Earth), Istanbul, Turkey. Submitted.

Chen Xu, Nico Sneeuw, and Michael G. Sideris (2006);  The Torus Approach in Spaceborne Gravimetry, Proceeding of VI Hotine-Marussi Symposium (Challenge and Role of Modern Geodesy), Wuhan, P. R. China. Submitted.

M. El-Habiby, Michael G. Sideris and Chen Xu (2006); Wavelet Evaluation of Inverse Geodetic Problems , Proceeding of VI Hotine-Marussi Symposium (Challenge and Role of Modern Geodesy), Wuhan, P. R. China. Submitted.

Chen Xu, Michael G. Sideris, and Nico Sneeuw (2006); Gravity Field Recovery from the Spaceborne Gravimetry, Proceeding of 13th Astronautics Conference, Canadian Aeronautics and Space Institute. Montreal, Canada.

Chen Xu, and Michael G. Sideris (2006); A Comparison of Different Interpolation Methods for Spaceborne Gravimetry Applications, Canadian Geophysical Union Annual Meeting, 9-12 May, 2005, Banff, Canada. Poster Presentation.

Chen Xu, Raymond Tsoi, and Nico Sneeuw (2005), Analysis of J₂ Perturbed Relative Orbits for Satellite Formation Flying, Proceeding of IAG International Symposium (Gravity, Geoid and Space Missions -- GGSM2004) pp36-41, Eds. C. Jekeli, L. Bastos and J. Fernandes, Springer.

Matthias Weigelt, Nico Sneeuw, Michael G. Sideris and Chen Xu (2005)  High Latitude Gravity Field Recovery from CHAMP and its Contribution to the Earth Monitoring. 7^th Geoide's Annual Scientific Conference, 29-31 May, 2005, Quebec City, Canada. Poster Presentation.

Chen Xu, Matthias Weigelt, Nico Sneeuw and Michael G. Sideris (2005)  Gravity Field Recovery from a Time-Variable Satellite Ground Track Pattern, Canadian Geophysical Union Annual Meeting, 9-12 May, 2005, Banff, Canada. Oral Presentation.

Chen Xu, and Matthias Weigelt (2005)  Time-Variable Ground Track Pattern Effects on Gravity Feild Recovery, Second Annual Engineering Graduate Students Conference 2005, 2-3 May, 2005, University of Calgary, Calgary, Canada, Oral presentation.

Chen Xu, Raymond Tsoi, and Nico Sneeuw (2004a), Analysis of J₂ Perturbed Relative Orbits for Satellite Formation Flying, IAG International Symposium: Gravity, Geoid and Space Missions -- GGSM 2004, Porto, Portugal, 30 Aug-3 Sept. 2004, Oral presentation.

Chen Xu, Raymond Tsoi, and Nico Sneeuw (2004b), Satellite Formation Flying for Geodetic Applications: Analysis of J₂ Disturbed Orbits, 2004 Joint Assembly AGU, CGU, SEG, 17-21 May, 2004, Montreal, Canada, Poster presentation.

Chen Xu, Raymond Tsoi (2004), Satellite Formation Flying for Geodetic Applications: Analysis of J₂ Disturbed Orbits, First Annual Engineering Graduate Students Conference 2004, 3-4 May, 2004, University of Calgary, Calgary, Canada, Oral presentation.

Chen Xu, Nico Sneeuw (2003)  Orbit Design for Future Gravity Field Satellite Missions, Canadian Geophysical Union Annual Meeting, 10-14 May, 2003, Banff, Canada Oral Presentation

Chen Xu (2002) GPS Data Processing of Precise Deformation Monitoring, Master Thesis, Tongji University, Shanghai,  China, Jan 2002

Jiexian Wang, Chen Xu, Caiping Lu (2002) Real-time Surveying of Immersed Tube, ACTA Geodaetica et Cartographica Sinica. May 2002, Vol (31), P70-73 (in Chinese)

Chen Xu, Jiexian Wang (2001a)  An Algorithm for Inter-frequency Bias Calibration of GPS, Bulletin of Surveying and Mapping Dec 2001, P16-17 (in Chinese)

Chen Xu, Jiexian Wang (2001b)  Real-time Surveying for Sinking Immersed Tunnels,  Geotechnical Investigation & Surveying , Apr 2001, P58-61 (in Chinese)

Presentations

Chen Xu, Lumped Coefficients and the Torus Approach, ENGO699.94 Seminar, 28 Nov. 2003 Instructor: Dr. N. Sneeuw

Chen Xu, Spherical Harmonic Coefficients Determination Using 2D Fourier Transform on the Torus, ENGO615 Seminar, 16 Jul. 2003 Instructor: Dr. M. Sideris

Chen Xu, Monitoring El Niño with Satellite Altimetry, ENGO681 Major Seminar, 15 Apr. 2003 Instructor: Dr. P.Wu

Chen Xu, Satellite Altimetry: Introduction and Applications to Geophysics, ENGO681 Minor Seminar, 25 Feb. 2003 Instructor: Dr. P.Wu

Chen Xu, Computing Spherical Harmonic Coefficients by 2D Fourier Torus Approach, ENGO699.78 Major Seminar, 6 May 2003 Instructor: Dr. J. Blais

Chen Xu, Least Squares Collocation, ENGO699.78 Leading Discussion, 11 Mar. 2003 Instructor: Dr. J. Blais

Chen Xu, Kalman Filter with Colored Observation Noise, ENGO629 Minor & Major Seminar, 30 Oct. 2002 & 25 Nov 2002 Instructor: Dr. Y. Gao

Chen Xu, Precise Orbit Determination (POD) of Low Earth Orbiters (LEO) Using GPS, ENGO625 Major Seminar, 6 Dec. 2002 Instructor: Dr. G. Lachapelle

Chen Xu, Monitoring Crustal Motions Using GPS Data, ENGO625 Leading Discussion, 31 Oct. 2002 Instructor: Dr. G. Lachapelle

NON-REFERRED PUBLICATIONS

Chen Xu, a Discussion on Practical Considerations for Modernizing Vertical Control, according to Seminar by G. Fotopoulos, Oct 2002

Chen Xu, Automated Extraction of Digital Terrain Models, Road Networks and Buildings Using Airborne Lidar Data, according to Seminar by Y.Hu, Oct 2002

Chen Xu, Error Analysis and Stochastic Modeling of MEMS-Based Inertial Sensors, according to Seminar by M. Park, Nov 2002

Chen Xu, a Precise Point Positioning: Accuracy and Performance, according to Seminar by M. Abdel-Salam, Dec 2002

Chen Xu, Inertial Sensors Errors Modelling Using Allan Variance, according to Seminar by H. Hou, March 2004

Chen Xu, Combination of Spherical Harmonics, Pseudo-Differential Operators and Wavelets for Solutions of Altimetry-Gravimetry Boundary Value Problems,  according to Seminar by R. Grebenitcharsky, Apr 2004