Gerald Frost's scientific contributions
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Publications (3)
Citations
... Esse ruído pode ser mais comum em dados antigos, onde não existiam aparelhos de GPS para determinar a localização exata da coleta. Além disso, muitos aparelhos de GPS podem possuir uma "Selective Availability" (SA) para degradar intencionalmente a precisão do sinal para usuários civis (veja Pace et al. 1995). Por fim, existe também o ruído de data, que acontece quando as datas de coleta estão incorretas, seja por terem sido marcadas e/ou transcritas de forma errônea, ou até mesmo pela imprecisão fornecida pelo coletor (Figura 2). ...
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... Easton and Frazer (2013) According to Pace et al. (1995) the 1920's witnessed the introduction of a more advanced navigation technique called Radio Navigation; it was based at first on radio signals that allowed navigators to locate the direction of shore-based transmitter when in range (based on the marine radio navigation aid LORAN -Long Range Aid to Navigation-). After that, the development of artificial satellites made possible the transmission of more precise line of sight radio navigation signals and sparked a new era in navigation technology. ...
