Abstract:For quantitatively researching the performance improvements of different levels of the GNSS multi-constellation integrated navigation system, this paper constructs the corresponding quantitative indicators to analyze the performance improvements of the system quantitatively. Through a simulation experiment, it verifies the validity of indexes, and analyzes the rule of the performance improvements of the system, along with combination levels and cut-off elevation angle changes, and proposes the optimal system combination at all levels. The paper demonstrates that the high-level of the multi-constellation system not only improves the flaws of single and low-level configurations, but it also largely enhances the performance of constellation.
LI Guangcai,WU Jiangfei,LIU Weihua et al. Quantitative Analysis of Performance Improvement of GNSS Multi-Constellation Integrated Navigation[J]. jgg, 2016, 36(5): 419-.