Implementation and Analysis of Grid-Based Ionospheric Correction Technique and Positioning Errors of NavIC + GPS ARAMIS SDR Receiver

In this paper, our main work is to observe the performance of the Indian Navigation Constellation (NavIC) + GPS ARAMIS SDR receiver. The ARAMIS receiver performances are observed in terms of acquisitions, tracking, ionospheric correction techniques (Klobuchar and grid-based GIVD model), and positioning errors results. Implementation of the GIVD model is validated by comparing the results of the Accord receiver. From the comparative analysis of positioning error, we observed that NavIC + GPS gave better results than NavIC and GPS alone.