Multi-Constellation GNSS Carrier Phase Solution with Integrity Protection Grant uri icon

abstract

  • A modern multi-frequency, multi-constellation GNSS receiver takes advantage of the number and variety in satellites and signals. However, GNSS users now face a new challenge in getting a trusted and reliable solution: the traditional fault detection and exclusion algorithms were not designed for multi-constellation and multiple-failure situations. We introduced a random sample consensus (RANSAC) method to protect a multi-constellation solution that is based on time-differenced carrier phase. RANSAC produces a robust solution of velocity/displacement by finding consensus among a large set of GNSS channels, and it is natively capable of rejecting multiple failures. We will investigate the application of this method in integrity protection and authentication.

date/time interval

  • June 2017 - September 2019

contributor