Dr. Sunil Bisnath is a Full Professor in the Department of Earth and Space Science and Engineering at York University in Toronto, Canada. He has over 25 years of experience working with GNSS. His research centres on precise GNSS-focussed positioning and navigation. 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.
Over his career, he has developed GNSS Precise Point Positioning (PPP) measurement processing algorithms, studied GNSS-based plate tectonics, applied atmospheric refraction models to marine GNSS positioning, developed GNSS-reflectometry receivers and inversion algorithms, assessed the performance of PPP and network real-time kinematic (RTK)-based positioning systems, high performance and low-cost positioning, and navigation and timing (PNT) sensor fusion for resilient PNT, amongst other research.
During his current tenure, Dr. Bisnath has worked with and received research funding from many entities, including: NSERC, CFI, Canadian Space Agency, European GNSS Agency, Ministry of Transportation of Ontario, Honeywell Aerospace, Sapcorda Services.
- High performance and mass market application of Global Navigation Satellite System positioning, navigation and timing (PNT).
- GNSS Precise Point Positioning (PPP) algorithm development.
- High performance and mass market PNT sensor fusion for resilient PNT.
- GNSS software-defined receiver (SDR) and hardware receiver development.
- GNSS-reflectometry and measurement inversion algorithms development.
Global Navigation Satellite System Laboratory
Location: Petrie, PSE 435
The GNSS lab at York University does cutting edge research related to various topics such as navigation solution development with cm-level accuracy (PPP) , integration of low-cost inertial navigation systems such as MEMS IMUs with GNSS receiver chips, implementation of a FPGA-based software GNSS receiver and research for the development of a reflectometry instrument.
Naciri N, S Bisnath (2021) “An uncombined triple-frequency user implementation of the decoupled clock model for PPP-AR.” Journal of Geodesy 95 (5), 1-17.
Bisnath S (2020). PPP: Perhaps the natural processing mode for precise GNSS PNT. Proceedings of IEEE/ION PLANSx 2020, 23-25 September, St. Louis, Missouri, USA, 419-415.
Aggrey J, S Bisnath, N Naciri, G Shinghal, S Yang (2020) “Multi-GNSS precise point positioning with next-generation smartphone measurements.” J Spatial Science. 65(1): 79-98.
Vana S, Naciri N, Bisnath S (2020). Benefits of motion constraining for robust, low-cost, dual-frequency GNSS PPP + MEMS IMU navigation. Proceedings of IEEE/ION PLANSx 2020, 23-25 September, St. Louis, Missouri, in press.
Vana S, Naciri N, Bisnath S (2020). Enhancing navigation in difficult environments with low-cost, dual-frequency GNSS PPP and MEMS-IMU. International Association of Geodesy Symposia,” in press.
Yang S, S Bisnath (2020). GNSS PPP navigation in obstructed environments using clock coasting. Proceedings of the 2020 ION International Technical Meeting, 21-24 January, San Diego, California, pp. 521-537.
Vana S, J Aggrey, S Bisnath, R Leandro, L Urquart, P Gonzalez (2019) “Analysis of GNSS correction data standards for the automotive market.” Navigation. 66(3): 577-592.
Aggrey J, S Bisnath (2019) “Improving GNSS PPP convergence: The case of atmospheric-constrained, multi-GNSS PPP-AR.” Sensors. 19(3): 587.
Aggrey J, S Bisnath, N Naciri, G Shinghal, S Yang (2019). Accuracy trend analysis of low-cost GNSS chips: The case of multi-constellation GNSS PPP. Proceedings of ION GNSS+ 2019, 16-20 September, Miami, Florida, pp. 3618-3635.
Aggrey J, S Bisnath, N Naciri, G Shinghal, S Yang (2019). Use of PPP processing for next-generation smartphone GNSS chips: Key benefits and challenges. Proceedings of ION GNSS+ 2019, 16-20 September, Miami, Florida, pp. 3862-2878.
Guruprasad S (2019). Design and development of an improved sensitivity reconfigurable GNSS receiver for space-based reflectometery. Proceedings of ION GNSS+ 2019, 16-20 September, Miami, Florida, pp. 3437-3450.
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.
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.
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.
BSantos, 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.