一种基于风压差翻转漂移模型的海上搜寻区域估计法

• Format: Patent
• Language: Chinese
• Published: 10.12.2019
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

本发明涉及一种基于风压差翻转漂移模型的海上搜寻区域估计法，包括以下步骤：对风速改变量归一化；根据目标漂移速度得到目标自身速度对风压差翻转的影响；根据归一化后的风速改变量和目标自身速度对风压差翻转的影响求取风压差翻转率，并判断当前风压差是否翻转；根据风压差翻转结构得到目标漂移模型；基于目标漂移模型采用蒙特卡洛法估计搜寻区域。本发明基于风压差翻转漂移模型的海上搜寻区域估计法所估计的搜寻区域能最大程度地包含搜救目标，而且面积小，能避免徒劳的搜寻无效区域，提高海上搜寻成功率。 The invention relates to a maritime search region estimation method based on a leeway overturning drift model. The method comprises the steps that wind speed variation is normalized; the influence of the speed of a target on leeway overturning is obtained according to target drift speed; a leeway overturning rate is solved according to the normalized wind speed variation and the influence of the speed of the target on leeway overturning, and whether current leeway overturns is judged; a target drift model is obtained according to a leeway overturning structure; and a Monte-Carlo method is adopted to estimate a search region based on the target drift model. The search region estimated through the maritime search region estimation method based on the leeway overturning drift mod