Currently, the performance of GNSS chipsets and IMU sensors embedded in smartphones for location–based services is limited due to the economic reasons for their mass production. This paper analyzes the navigation performance of such devices by processing the raw measurement data output from smartphones. For this, up-to-dated versions of smartphones provided by Samsung and Xiaomi are used in the test experiment to compare their performances and characteristics. The GNSS and IMU data are extracted and saved by using an open market application software, and then analyzed in post-processing manner. Navigation solutions obtained by three different ways, such as INS, GPS, and GPS/INS integration, are compared.

Keywords: smartphone, GNSS, IMU, navigation