Guidance, Navigation and Control · Guidance Laws · M8-L1 · Advanced
Hold the Survey Line in Wind
Bench log · Hopper on the test range
09:05. The survey vehicle flies its lines at 20 m/s and the customer wants them straight to within two metres. In a crosswind it drifts off, comes back, and wanders; the flight engineer has changed the look-ahead three times and each change fixed one thing and broke another.
You will see what the look-ahead does, rewrite the law to work on the ground track, and choose the look-ahead from the dynamics rather than by trial.
Your task
Lab complete: post-mortem
You have passed every stage. Now connect it back to the theory and move on:
Output
What Python can I use?
Plain Python 3 with the standard library and the course library gnckit (import gnckit as g: transfer functions and margins, state space and LQR, the Hopper model, quaternions, a convex solver). NumPy is not available in the browser. Your code runs in a background worker: an endless loop is stopped after a few seconds and the page stays usable. It runs in your browser and is never sent anywhere.