Professor Ochieng

Chair in Positioning and Navigation Systems and Head of the Centre for Transport Studies, Imperial College London.

Professor Ochieng has extensive experience in the fields of Geomatics and Positioning, Navigation and Timing (PNT) systems. He joined Imperial College London (ICL) in 1997 after working in GNSS products development at Racal Electronics (later acquired by Thales). At Imperial College London he is currently the Head of the Centre for Transport Studies and Chair Professor in Positioning and Navigation Systems in the department for Civil and Environmental Engineering. He is a Chartered Engineer and Fellow of the UK Institutions of Civil Engineers, Highways and Transportation, Civil Engineering Surveyors and Navigation.

He gained his PhD from the University of Nottingham (UK) in the field of Space Geodesy and later worked there as Research Associate.

Many projects have benefitted from Professor Ochieng's involvement covering many areas of navigation useful for all modes of transport including the design of Galileo, EGNOS, Air Traffic Management Systems for SESAR and Intelligent Transport Systems.

CHC Tech Ltd are pleased to have Professor Ochieng working as Advisor, providing invaluable input into the development of new and exciting products to come.

https://www.imperial.ac.uk/people/w.ochieng

Dr Xin Shi

Chief Scientist, CHC Tech Ltd.

Dr Shi is a Chief Scientist for CHC Tech, working on the latest GNSS measurement algorithms crucial to the development of precise GNSS positioning solutions. He has worked in the commerical field of GNSS for over six years at Veripos and more recently was co-founder of XACT Global Ltd before moving on to CHC Tech Ltd in 2018.

Xin studied in the fields of Telecommunications engineering and Satellite Navigation. He has a BSc and MSc in Telecommunications Engineering from the Harbin Institute of Technology and Imperial College London, respectively. This was followed by a PhD degree in Satellite Navigation from Imperial College London.

Dr Shi has extensive experience in the planning and delivery of data processing algorithms and is also skilled in identifying new techniques and novel approaches. Xin also keeps in touch with ICL and is keen to develop links with his academic peers and promote the development and understanding in the field of GNSS.

https://www.linkedin.com/in/xin-shi-73174682

Dr Zhaohui Chen

Senior GNSS Engineer, CHC Tech Ltd.

Dr Zhaohui Chen is a Senior Global Navigation Satellite Systems (GNSS) Engineer at CHC Tech Ltd., who investigates processing orbit and clock correction streams in real-time to produce, encode, upload and save a combinaton of Broadcast Corrections from various providers. She focuses on the GNSS data analysis and GNSS software development.

She joined the CHC Tech Ltd. in 2021. Before, she had been working on carbon cycle data assimilation using global transport model simulations and carbon dioxide measurements at Institute of Atmosphere Physics, Chinese Academy of Sciences from 2009 to 2015. Later at the University of East Anglia she continued her research on carbon data assimilation up until 2021.

Dr Yuxiang Feng

Lab Manager and Research Associate

Dr Feng is a research associate at the Centre for Transport Studies at Imperial College London and the Manager of the Intelligent Infrastructure and Transport Systems (IITS) Lab. His research focuses on the safety validation of autonomous vehicles.

Before joining Imperial College London, Dr Feng obtained a PhD in humanised driver modelling for autonomous vehicles at the University of Bath. He holds a BSc and MSc in Mechatronics from Tongji University and University of Bath.

Dr Feng is experienced in experimentation, instrumentation, and data management.

Coco Li

Project Manager

Toby Towler

Junior GNSS Engineer

Giorgio Ellis

R&D Research Assistant

Giorgio is an R&D Research Assistant at CHC Tech Ltd., where he supports various research projects in the field of GNSS.

He joined in 2025 as part of his placement year as he is a student at the University of East Anglia.