Performance Demand and General Design of RNSS

Navigational demand for modern ocean, aviation, aerospace, and land transportation increases each day. In particular, modern war deems satellite navigation as an addition to weapons and there are extremely high expectations of it. More performance requirements and a higher performance index are proposed. These can be divided into three categories: essential performance requirement; value‐added performance requirement; and integrated performance requirement. The essential performance requirement is the basic prerequisite performance requirement of finalizing interregional and international navigation. The essential performance of radio navigation satellite system (RNSS) is to be the performance index proposed by the ICAO for civil aviation navigation. Design of a satellite navigation system includes initiation design and engineering design. The top‐level design of satellite navigation systems is compared to system architectural design because general design is just like building design to accommodate a user.