Sunil Bisnath

Associate Professor of Geomatics Engineering

Petrie 129

(416) 736-2100 x 20556


Dr. Sunil Bisnath is an Associate Professor in the Department of Earth and Space Science and Engineering at York University in Toronto, Canada. His research interests include precise GNSS positioning and navigation algorithms and applications. His current core research focuses on high-performance and low-cost GNSS Precise Point Positioning (PPP) and software defined radio GNSS receiver development. Previous to York University, Professor Bisnath held the positions of geodesist at the Harvard-Smithsonian Center for Astrophysics in Boston, Massachusetts and assistant research scientist at the University of Southern Mississippi, NASA Stennis Space Center, Mississippi. He holds an Honours B.Sc. and M.Sc. in Surveying Science from the University of Toronto and a Ph.D. in Geodesy and Geomatics Engineering from the University of New Brunswick.

Research Interests

  • Global Navigation Satellite Systems
  • Positioning and navigation
  • Geodesy
  • Precise Point Positioning (PPP) algorithm and application development
  • Software-defined GNSS receiver development
  • Network RTK evaluation and certification
  • GNSS-based precise orbit determination (POD) algorithm development

Selected Publications

Choy S, S Bisnath, C Rizos (2017) Uncovering common misconceptions in GNSS Precise Point Positioning and its future prospect. GPS Solutions. 21(1): 13-22

Guruprasad S, S Bisnath, R Lee, J Kozinski (2016) Design and implementation of a low-cost SoC-based software GNSS receiver. IEEE Aerospace and Electronic Systems Magazine. 31(4): 14-19

Seepersad G, S Bisnath (2015) Reduction of PPP convergence period through pseudorange multipath and noise mitigation. GPS Solutions. 19(3): 369-379

Mander A, S Bisnath (2013) GPS-based precise orbit determination of low Earth orbiters with limited resources. GPS Solutions, 17(4): 587-594

Mander, A. and S. Bisnath, S. (2012).  “GPS-based precise orbit determination of low Earth orbiters with limited resources.”  GPS Solutions, DOI 10.1007/s10291-012-0303-7.

Bisnath, S. and Collins, P. (2012).  “Recent developments in Precise Point Positioning.”  Geomatica, 66(2): 375-385.

Lee, R., S. Bisnath, H. Chesser, A. Ng, G. Vukovich, D. Sun, S. Gleason, and A. de Ruiter (2012).  “Northern communication and GNSS science nanosatellite constellation mission.”  In Novel ideas for nanosatellite constellation missions, Ed. R. Sandau, S. Nakasuka, R. Kawashima, and J. Sellers, IAA Book Series, Vol. 1 No. 1, IAA, Paris, 164 p.

Collins, P., S. Bisnath, F. Lahaye, and P. Héroux (2010).  “Undifferenced GPS ambiguity resolution using the Decoupled Clock Model and ambiguity datum fixing.”  Navigation, 57(2): 123-136.

Pagiatakis, S., S. Bisnath, C. Armenakis, and J.-G. Wang (2009).  “The establishment of a geomatics engineering program and its challenges: The York University case.”  Geomatica, 63(2): 97-108.

Dolgansky, A., A. Szeto, and S. Bisnath (2009).  “Software simulation of multiple Global Navigation Satellite System measurements.” In 2009 IEEE Toronto International Conference – Science and Technology for Humanity, 26-27 September 2009 Toronto, Ontario, Canada, IEEE Xplorer: 322-327.

Bisnath, S. and Y. Gao (2009).  “Current state of precise point positioning and future prospects and limitations.”  International Association of Geodesy Symposia – Observing our changing earth,” (Ed.) M. Sideris, 133: 615-623.

Santos, M. R.B. Langley, R.F. Leandro, S. Pagiatakis, S. Bisnath, R. Santerre, M. Cocard, A. El-Rabbany, R. Landry, H. Dragert, P. Héroux and P. Collins (2009).  “Next-generation algorithms for navigation, geodesy and earth sciences under modernized Global Navigation Satellite Systems (GNSS).” International Association of Geodesy Symposia – Observing our changing earth,” (Ed.) M. Sideris, 133: 817-824.