Key Technologies Analysis and Market Status of High Precision Positioning Based on Mobile Phone

Since its version 7.0, Android has opened the access interface of GNSS original observed quantity, which has provided a data base for mobile phones to achieve high-precision positioning. The key technologies of mobile phone positioning mainly include wireless performance optimization of antenna, high-precision navigation and positioning algorithm for mobile phone, and high-precision positioning implementation scheme based on Android operating system. This paper first gives an analysis on the current situation of the market and research of high-precision positioning based on mobile phones, then expound on how to make breakthrough in several key technologies, and briefly analyzes the future development trend in the end.