船舶真风解算的误差影响分析及修正方法  

Research on the Error Analysis and Correction Method for the Calculation Model of the Ship's True Wind

作　　者：李志乾[1,2] 崔天刚[2,3] 胡桐 漆随平[2,3] LI Zhi-qian CUI Tian-gang HU Tong QI Sui-ping(Shandong Provincial Key Laboratory of Marine Environment Monitoring Techniques, Qingdao 266001, Shandong Province, China Institute of Oceanographic Instrumentation, Shandong Academy of Sciences, Qingdao 266001, Shandong Province, China National Research Center of Marine Environment Monitoring Equipment and Engineering Technology, Qingdao 266001, Shandong Province, China)

机构地区：[1]山东省海洋环境监测技术重点实验室,山东青岛266001 [2]山东省科学院海洋仪器仪表研究所,山东青岛266001 [3]国家海洋环境监测设备工程技术中心,山东青岛266001

出　　处：《海洋技术学报》2017年第1期86-91,共6页Journal of Ocean Technology

基　　金：山东省科学院博士基金项目资助(2015QN025);山东省科学院青年基金资助项目(2014QN034);山东省科技发展计划项目资助(S225)

摘　　要：从船舶真风解算的模型出发,依据误差传播定律,分析了相对风测量误差和航速误差对真风解算的影响。视风的测量误差会直接传递给真风;航速小于15 kn时,航速误差传递给真风解算的误差可忽略不计,航速大于15 kn时,真风误差会随航速的增大而增大。真风解算模型忽略了海流因素,当水流速度不可忽略时,船舶的运动轨迹受水流影响,分析了海流引起的误差模型,给出了选用不同航向航速源下的真风误差修正量。Based on the true wind calculation model for ships and according to the law of error propagation, this paper analyzes the impact of the relative wind measurement errors and navigational speed errors on the true wind calculation model. Measurement error, like that of the wind, will be passed directly to the true wind. When the ship＇s speed is less than 15 kn, the error passed to the true wind calculation model is negligible; on the contrary,the true wind can increase with increasing ship speed. The true wind calculation model ignores the factors of sea currents. When the flow velocity can not be ignored, the ship＇s trajectory is affected by the flow. The error analysis of the flow＇s model gives the true wind error with different corrections of the ship＇s speed and heading.

关 键 词：真风解算 航速 误差传递 

分 类 号：P716.3[天文地球—海洋科学] P412.16