A null frame for spacetime positioning by means of pulsating sources

  title={A null frame for spacetime positioning by means of pulsating sources},
  author={Angelo Tartaglia and Matteo Luca Ruggiero and Emiliano Capolongo},
  journal={Advances in Space Research},
Abstract We introduce an operational approach to the use of pulsating sources, located at spatial infinity, for defining a relativistic positioning and navigation system, based on the use of four-dimensional bases of null four-vectors, in flat spacetime. As a prototypical case, we show how pulsars can be used to define such a positioning system. The reception of the pulses for a set of different sources whose positions in the sky and periods are assumed to be known allows the determination of… Expand
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