Medium and high orbit navigation satellite integrity model construction method based on low orbit satellite

The invention relates to a medium and high orbit navigation satellite integrity model construction method based on a low orbit satellite, which is mainly used in the field of satellite navigation integrity monitoring. Aiming at the problems of space-time reference uncertainty, conservative estimation of an integrity model and the like of existing low-orbit satellite integrity monitoring, the invention provides a low-orbit satellite-based medium-and-high-orbit navigation satellite integrity model method, which comprises construction of a one-way reference correlation integrity monitoring network model and construction of a reference irrelevant integrity monitoring network model. The method can provide high-precision risk value estimation capability in real time according to the geometric configuration of the satellite, effectively improves the integrity level of the system, and has the characteristics of accurate monitoring, high real-time performance and easiness in implementation. 本发明涉及基于低轨卫星的中高轨导航卫星完好性模型构建方