Ship conflict early warning method
A technology for ships and ship trajectories, which is applied in special data processing applications, instruments, electrical digital data processing, etc., and can solve the problem that there is no more accurate plan for early warning of ship trajectories and ship conflicts.
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[0051] (Example 1)
[0052] see figure 1 , The ship conflict early warning method of this embodiment includes the following steps:
[0053] ① Obtain real-time and historical position information of ships through sea surface radar. The position information of each ship is a discrete two-dimensional position sequence x′=[x 1 ′, x 2 ′,..., x n ′] and y′=[y 1 ′, y 2 ′,...,Y n ′], the original discrete two-dimensional position sequence x′=[x 1 ′, x 2 ′,..., x n ′] and y′=[y 1 ′, y 2 ′,...,Y n ′] Perform preliminary processing to obtain the denoising discrete two-dimensional position sequence of the ship x=[x 1 , X 2 ,..., x n ] And y = [y 1 , Y 2 ,..., y n ], for a given original two-dimensional sequence data x′=[x 1 ′, x 2 ′,..., x n ′], using linear expressions of the following form to approximate them respectively: f ~ ( x ′ ) = X ∀ J ∀ K c J , K ψ J , K ( x ′ ) ,
[0054] among them: c J , K...
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