Underwater intelligent self-adapted terrain matching method based on terrain information amount
A terrain matching and adaptive technology, applied in the direction of navigation calculation tools, etc., can solve problems such as incomplete terrain information evaluation
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[0083] Embodiment 1 An underwater intelligent adaptive terrain matching method based on terrain information.
[0084] figure 1 It is a structural diagram of the intelligent adaptive terrain matching algorithm described in the present invention.
[0085] In the simulation experiment, the terrain elevation database is a rectangular area within the range of 10000m × 14000m, and the resolution of the database terrain is 100m × 100m. The area is divided into 9 grid areas, as shown in image 3As shown, the terrain information weight coefficients of the 9 grid areas are calculated. Table 1 shows the calculation results of the single terrain information values, comprehensive information weight coefficients and sampling time intervals of the 9 grid areas.
[0086] Among them, the calculation formula of terrain roughness r is:
[0087] r=(r λ + r φ ) / 2
[0088] where r λ and r φ are the roughness in the longitude direction and latitude direction respectively:
[0089] ...
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