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基于支持向量机的红外图像舰船统计特征分析 被引量:1
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作者 刘华 《舰船科学技术》 北大核心 2018年第7X期73-75,共3页
海上舰船的航行统计特征和目标识别对于海上交通管理与监察部门有重要作用,一方面,舰船的航行统计特征是海上航线管理与调度的基础,可以减少海上船舶的碰撞事故;另一方面,舰船目标的特征识别可以帮助监察部门分辨敌我船舶,维护海上领域... 海上舰船的航行统计特征和目标识别对于海上交通管理与监察部门有重要作用,一方面,舰船的航行统计特征是海上航线管理与调度的基础,可以减少海上船舶的碰撞事故;另一方面,舰船目标的特征识别可以帮助监察部门分辨敌我船舶,维护海上领域的安全。随着计算机技术与探测技术的发展,海上舰船的目标识别与特征提取技术取得了明显的进步,本文重点研究了基于支持向量机的舰船红外图像统计特征识别与提取技术,包括图像样本分类等方面,并进行了舰船红外图像边缘像素识别的仿真试验。 展开更多
关键词 支持向量机 红外图像 舰船统计特征
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Wave statistics for ship seakeeping in China offshore 被引量:1
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作者 刘首华 牟林 +3 位作者 王兴 陈长霖 岳心阳 高志刚 《Marine Science Bulletin》 CAS 2014年第2期1-12,共12页
Ocean waves are the core environmental elements affecting the movements and structure design of ships. Statistical analysis of wave parameters is the basis for the establishment of long-term ship environmental adaptab... Ocean waves are the core environmental elements affecting the movements and structure design of ships. Statistical analysis of wave parameters is the basis for the establishment of long-term ship environmental adaptability prediction model. The observations from coastal stations, buoys, altimeters and volunteer ships that cover from 1993 to 2011 were interpolated into miller Ion-lat grids by using bilinear method and the analytical fields of ocean waves were given. By using optimal interpolation, the analysis wave fields were assimilated into the WAVEWATCH III (WW3) simulation results. From the assimilated results, the wave rose statistics, the wave height of muitiyear return period and the extreme 2-D wave spectrum are related to the ship seakeeping were calculated. Finally, the wave statistics in China offshore were analyzed in detail. 展开更多
关键词 ocean waves statistical characteristics ship seakeeping shipenvironmental adaptability
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