Abstract:

In the marine typhoon warning, search and rescue system, there is a phenomenon of data loss. In order to correctly display, real-time a ships′ current position on an electronic map, the concepts of theF -navigation data and-match degree are given by using half P-sets. The theorems of the identification F-navigation data, the recovery of navigation data, the match criterion of steady-state for F-navigation and the matching criteria of navigation data in the electronic map path are proposed. Finally, the paper gives an application of matching the electronic map path with the F-navigation data.

Key words: half P-sets; F-navigation data; F-match degree; data recovery; path match