Block 1 — Introduction, Frames, and Errors

Block 1 — Introduction, Frames, and Errors#

Block 01~50 min2 demos

Defines what a navigation system is (state plus covariance), introduces the five core reference frames (ECEF, NED, RTN, aircraft body, spacecraft body), develops Direction Cosine Matrices for moving vectors and points between frames, and reduces position error to the operational metrics that test reports use.

What you’ll learn#

  1. Explain what a navigation system estimates.

  2. Distinguish between truth, measurement, and estimate.

  3. Identify the five reference frames used in this course: ECEF, NED, RTN, Aircraft Body, Spacecraft Body.

  4. Use a Direction Cosine Matrix (DCM) to move a vector or a point between frames.

  5. Define position error and reduce it to horizontal (\(e_H\)) and vertical (\(e_V\)) operational metrics.

  6. Explain why frame consistency must be established before any statistics or integrity logic is applied.

In this block#

Reading

Reading

Reference frames, DCMs, error metrics.

 Flashcards

Flashcards

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

 Demo

Demo · 2D Direction Cosine Matrix

Rotate a frame and watch the components transform live.

 Demo

Demo · Target Location Error

Drag a sensor pin on a globe and see horizontal vs. vertical error split out.
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