Analysis of multi‐constellation GNSS receiver performance utilizing 1‐st side‐lobe signal on the use of SSV for KPS satellites

Abstract

A numerical analysis is conducted for assessing the feasibility on the use of Global Navigation Satellite System (GNSS) receivers for Korea Positioning System (KPS) satellites in space service volume (SSV). KPS is planned to provide a navigation and timing service by constructing seven satellites over the Korean Peninsula, which will orbit above the GNSS constellation in SSV. The major problems caused by such orbital characteristics include reduced satellite visibility due to poor geometric diversity and weak signals, causing an increase in the user range error (URE). To address these constraints, this study considers multi-GNSS and 1-st side-lobe signal utilization scenarios. More specifically, the GNSS satellite visibility, geometric dilution of precision, carrier-to-noise ratio, URE, and navigation error for KPS satellites in SSV are analysed through a numerical simulation. A trade-off between visibility and received signal power as well as their effects on positioning accuracy is analysed to describe the utility of side-lobe signals. Finally, based on numerical analysis of the simulation results, this verifies the applicability of GNSS SSV for KPS satellites through multi-GNSS and side-lobe utilization scenarios.