Abstract
Positioning accuracy of the traditional positioning has been limited because of the power and bandwidth limitation, quantum entanglement and compression technology can greatly improve the accuracy of measurement and synchronization. So, using the coherence of entangled photons and the principle of quantum spatial positioning, the scheme of quantum positioning with entangled photon pair was proposed, which was consisted of ground unit, satellite and the user three parts, the ground unit respectively sent EPR entangled photon pairs to two satellites three times, then the entangled photon pairs were sent to user by satellites, User carrying HOM interferometer, when the coincidence counting rate reaches the maximum three times, the user location can be got by computing. In the end, the quantum positioning and the traditional positioning technology were compared from the aspects of positioning accuracy, safety and so on.
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