基于風壓差翻轉漂移模型的海上搜尋區(qū)域確定
發(fā)布時間：2018-09-06 10:53
【摘要】：為提高海上搜救的成功率,最大限度地減少生命和財產(chǎn)損失,需獲得精確的漂移模型,并快速確定包含搜救目標的最小搜尋區(qū)域。對此,分析海洋環(huán)境、目標漂移特性等因素的不確定性對漂移運動的影響,提出一種新的風壓差翻轉率計算方法,并運用該方法建立搜救目標漂移模型。通過仿真試驗,基于所建立的漂移模型,分別用解析法和Monte Carlo法對失事船舶搜尋區(qū)域進行估計。結果表明:風壓差翻轉率計算方法可提高漂移模型的精度;基于所建立的漂移模型,使用Monte Carlo法估計的搜尋區(qū)域能最大程度地包含搜救目標且面積小。
[Abstract]:In order to improve the success rate of maritime search and rescue and minimize the loss of life and property, it is necessary to obtain an accurate drift model and quickly determine the minimum search area containing search targets. In this paper, the influence of the uncertainty of ocean environment and target drift on drift motion is analyzed, and a new method of calculating wind pressure difference turnover rate is proposed, and the drift model of search and rescue target is established by using this method. Based on the established drift model, the search area of shipwrecked ship is estimated by analytical method and Monte Carlo method. The results show that the precision of the drift model can be improved by calculating the wind pressure difference turnover rate, and the search area estimated by the Monte Carlo method can contain the search target with small area to the maximum extent based on the established drift model.
【作者單位】： 中國科學院沈陽自動化研究所;中國科學院大學;中國科學院光電信息處理重點實驗室;
【基金】：國家重點型號資助項目
【分類號】：U676.8
本文編號：2226134
[Abstract]:In order to improve the success rate of maritime search and rescue and minimize the loss of life and property, it is necessary to obtain an accurate drift model and quickly determine the minimum search area containing search targets. In this paper, the influence of the uncertainty of ocean environment and target drift on drift motion is analyzed, and a new method of calculating wind pressure difference turnover rate is proposed, and the drift model of search and rescue target is established by using this method. Based on the established drift model, the search area of shipwrecked ship is estimated by analytical method and Monte Carlo method. The results show that the precision of the drift model can be improved by calculating the wind pressure difference turnover rate, and the search area estimated by the Monte Carlo method can contain the search target with small area to the maximum extent based on the established drift model.
【作者單位】： 中國科學院沈陽自動化研究所;中國科學院大學;中國科學院光電信息處理重點實驗室;
【基金】：國家重點型號資助項目
【分類號】：U676.8
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