GPS Data Processing Methodology: from Theory to Applications

The idea behind this chapter is to use a few fundamental concepts to help develop a way of thinking about GPS data processing that is intuitive, yet has a firm theoretical foundation. Intuition is based on distilling an alarming array of information into a few core concepts that are basically simple. The fundamental concepts I have chosen to explore and develop here are generally based on equivalence principles and symmetry in problems. This involves looking at the same thing from different ways, or looking at apparently different things in the same way. Using symmetry and equivalence, we can often discover elegant explanations to problems.