Mathematical Regression Model to predict Navigation with Indian Constellation (NavIC) Geo Synchronous Satellite System

Abstract

Satellite signals become a plane wave by the time they reach Earth's surface Signal consistency together with satellite availability and geometric precision dilution plays an important role in positional accuracy. Some satellite communication research indicated that the elevation angle of the transmission path of the signal determines the efficiency of the links between the transmitter and the receiver. Hence, there is requirement of mathematical model, which provide relation between received signal strength (C/N0) and elevation angle to predict the direct C/N0. In this paper has been made to develop a mathematical model for predict of direct C/N0 NavIC Geo synchronous satellites. The antenna used in experiment for data collection has been placed on roof top of the Graphic Era University building in Dehradun, India. The NavIC regression model was validated with the experimental data. Average R2 and RMSE value for developed regression model were 0.89 and 1.08 respectively which show good prediction of NavIC C/N0 value with developed model.