2. Unit description and objectives

In this unit you will learn how the signals transmitted by GNSS satellites are used to obtain an approximate distance (pseudorange) from a point on Earth to each satellite. After completing this unit you should be able to:

  1. Explain how the receiver determines the identity and location of each satellite using the navigation message and signal-matching.
  2. Explain the process for estimating pseudorange using PRN code synchronization.
  3. Describe how estimated position is calculated using pseudoranges.