Table 4 - uploaded by Guilherme F. Trigo
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Critical Tethered Flight Envelope

Critical Tethered Flight Envelope

Source publication
Technical Report
Full-text available
User Manual of the Environment for Autonomous GNC Landing Experiments (EAGLE) demonstrator. Full-text: https://elib.dlr.de/126743/

Contexts in source publication

Context 1
... case of an abort or some interactions with the tethers the limits for accelerations, rates, pitch/yaw angle, etc. can be violated. Minimum pulse of cold gas system (6 ms pulse (t/I · ∆t)) σ GPS NAVr m 2.5 / 0.05 Navigation system 1σ position accuracy in horizontal/vertical direction with GPS filter update σ GPS NAVv m s −1 0.2 / 0.05 Navigation system 1σ velocity accuracy in horizontal/vertical direction with GPS filter update σ ET-NAV NAVr m 0.05 / 0.02 Navigation system 1σ position accuracy in horizontal/vertical direction with ET-NAV filter update σ ET-NAV NAVv m s −1 0.1 / 0.05 Navigation system 1σ velocity accuracy in horizontal/vertical direction with ET-NAV filter update σ NAV θ ° 2/4 Navigation system 1σ attitude accuracy in pitch and yaw / heading direction with ET-NAV filter update σ ET-NAV NAV θ ° 1/1 Navigation system 1σ attitude accuracy in pitch and yaw / heading direction without ET-NAV filter update d LAmax m 10 Maximal measuring distance of the laser altimeter v wind m s −1 10 Maximal allowed wind speed during flight Table 4 lists the critical conditions that result in a test abort, manually or automated. In any case, the operator can abort a tests for other reasons than those given in the table if the operator anticipates a safety critical situation. ...
Context 2
... case of an abort or some interactions with the tethers the limits for accelerations, rates, pitch/yaw angle, etc. can be violated. Minimum pulse of cold gas system (6 ms pulse (t/I · ∆t)) σ GPS NAVr m 2.5 / 0.05 Navigation system 1σ position accuracy in horizontal/vertical direction with GPS filter update σ GPS NAVv m s −1 0.2 / 0.05 Navigation system 1σ velocity accuracy in horizontal/vertical direction with GPS filter update σ ET-NAV NAVr m 0.05 / 0.02 Navigation system 1σ position accuracy in horizontal/vertical direction with ET-NAV filter update σ ET-NAV NAVv m s −1 0.1 / 0.05 Navigation system 1σ velocity accuracy in horizontal/vertical direction with ET-NAV filter update σ NAV θ ° 2/4 Navigation system 1σ attitude accuracy in pitch and yaw / heading direction with ET-NAV filter update σ ET-NAV NAV θ ° 1/1 Navigation system 1σ attitude accuracy in pitch and yaw / heading direction without ET-NAV filter update d LAmax m 10 Maximal measuring distance of the laser altimeter v wind m s −1 10 Maximal allowed wind speed during flight Table 4 lists the critical conditions that result in a test abort, manually or automated. In any case, the operator can abort a tests for other reasons than those given in the table if the operator anticipates a safety critical situation. ...

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