Two way ranging and Doppler systems are summarized. Differenced measurements or “differencing,” is explained. For additional explanation on differencing see Penn State’s course for Geospatial and GNSS professionals (https://www.e-education.psu.edu/geog862/node/1727).

There was some difficulty with projecting the slides to the screen so they have been added after the lecture was recorded.

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Slides: L12 Slides – Real Measurements 2

Previous lectures:

• L11 – Real Measurements
• L10 – Conceptual Example
• L9 – Conceptual Measurements
• L8 – Simulating Ideal Measurements
• L7 – Ideal and Conceptual Measurements
• L6 – Coordinate Systems and Time
• L5 – Perturbed Motion
• L4 – Two Body Problem
• L3 – Problem Solution and Review
• L2 – Orbital Mechanics Concepts
• L1 – Orbit Determination Concepts