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datatrak:intro [2020/05/31 12:36] – [Three-step navigation process] philpem | datatrak:intro [2022/04/26 15:29] – philpem | ||
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- | ====== Introduction to hyperbolic navigation | + | ====== Introduction to Datatrak and hyperbolic navigation ====== |
Hyperbolic navigation is a means of navigation which works by measuring the difference in arrival time between two signals. This may be done by measuring either time-of-arrival or phase-difference. Phase difference is usually preferred as it removes the need to precisely synchronise many transmitting stations. | Hyperbolic navigation is a means of navigation which works by measuring the difference in arrival time between two signals. This may be done by measuring either time-of-arrival or phase-difference. Phase difference is usually preferred as it removes the need to precisely synchronise many transmitting stations. | ||
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- | ===== Datatrak LF signal format ===== | + | ===== Simplified |
==== Basic signal format ==== | ==== Basic signal format ==== | ||
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+ | In practice, the total accuracy is limited by variations in propagation conditions and measurement error. |