Localization and Observability of Aircraft via Doppler Shifts
IEEE Transactions on Aerospace and Electronic Systems(2007)
摘要
The linear trajectory of an airplane with constant velocity is obtained from Doppler shifts at stationary sensors, each yielding a corresponding time of closest approach, closest distance, and speed [3, 8]. Based on these inferences and on the sensors' locations, three sensors yield two candidate trajectories, and four sensors yield one - provided that the locations span R2 and R3 respectively: constituting observability for the problem at hand.
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关键词
Doppler shift,aircraft,position control,Doppler shifts,aircraft localization,aircraft observability,airplane,constant velocity,linear trajectory,stationary sensors
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