Block 6 — GPS Fundamentals

Block 6 — GPS Fundamentals#

Block 06~50 min1 demo

Pseudoranges, the four-unknown nonlinear least-squares fix (three position components plus receiver clock bias), Dilution of Precision, and the principal error sources (ionosphere, troposphere, multipath).

What you’ll learn#

  1. Describe the GPS constellation and signal architecture.

  2. Explain how a pseudorange is formed and why it is “pseudo”.

  3. Formulate GPS positioning as a nonlinear least-squares problem.

  4. Explain how satellite geometry amplifies pseudorange noise into position error.

  5. Identify the four dominant GPS error sources and their typical magnitudes.

  6. Interpret GPS accuracy specifications (CEP, \(1\sigma\), 2DRMS).

In this block#

Reading

Reading

Pseudoranges, the four-unknown fix, DOP, and error sources.

 Flashcards

Flashcards

Click-to-reveal cards for the block's key terms and equations.

 Demo

Demo · GPS Positioning

Drag satellites around the orbit; watch DOP and the 95% covariance ellipse respond live.
Contents