Where are the Satellite-based navigation system accuracies getting inhibited?

The satellite based navigation system was proposed and implemented to provide centimetre level positional accuracy to the users. But the positional accuracy of the satellite based navigation system is getting deteriorated due to the atmospheric influence on trans-radio communication signals and various errors such as ephemeris, ionospheric delays and receiver clock errors etc. Several concepts were suggested to overcome the errors and to improve the positional accuracy. In this talk, I will touch upon some of the techniques such as differential global positioning system (DGPS), global navigation satellite system (GNSS) and augmentation to improve the positional accuracy. And also, I will discuss about the scope of research work to minimize the errors and the counteractive measures to overcome the atmospheric influence on positional accuracy.

About the Speaker:
Mr. Tanneeru Venkateswara Rao is working in the Balloon Facility of Tata Institute of Fundamental Research (TIFR) since the year 2000 in various positions and is currently in the position of scientific officer. His responsibilities include designing and developing on-board and ground-based telemetry sub-systems and satellite-based navigation sub-systems. He has received the ME/M. Tech degree in digital systems engineering from the Department of Electronics and Communication Engineering, Osmania University, Hyderabad, Telangana, India, in 2015. Currently, he is pursuing a doctoral degree from Koneru Lakshmaiah Education Foundation, Vaddeswaram, Andhra Pradesh, India in the field of ionospheric studies. His research interests include Global Positioning System (GPS) amplitude scintillations correlation analysis, scintillations prediction, and mitigation algorithms to improve positional accuracy during scintillations periods.