哈尔滨工程大学学报Issue(6)：679-683,730,6.DOI:10.3969/j.issn.1006-7043.201307034
桅杆RCS可视化计算方法改进
Improved method for the mast RCS visualization calculation
摘要
Abstract
With the increased attention given to the stealth performance of ships, owing to their small cross section on dispersion of radar and excellent stealth effect, enclosed tubular masts have been widely adopted. GRECO ( graphical electromagnetic computing ) has been considered as one of the most efficient methods to acquire the characteristics of high-frequency and electrically large-sized targets such as masts. A new improvement of accurately extracting the geometric information of pixels has been presented, an improved GRECO algorithm has been presen-ted, which can overcome the traditional shortcomings of GRECO, as it is unable to accurately extract the normal vector of the target. Furthermore, the Area projection/Physical optics was used and the traditional discrimination method of facet pairs that might contribute to multiple scattering was improved suitably in order to improve the com-putational efficiency. Finally, the improved GRECO algorithm was used to calculate and analyze the RCS distribu-tion of the British Type 45 destroyer′s mast. The following conclusions were made: mirror scattering is the main scattering source of enclosed masts, and good stealth design can effectively reduce the influence of multiple scatter-ing on the RCS of the whole mast.关键词
雷达截面积/图形电磁学/多次反射/封闭式桅杆Key words
radar cross section/graphical electromagnetic computing/multi-reflection/enclosed mast分类
信息技术与安全科学引用本文复制引用
崔俊伟,杨飏..桅杆RCS可视化计算方法改进[J].哈尔滨工程大学学报,2014,(6):679-683,730,6.基金项目
国家自然科学基金资助项目（50908036），辽宁省自然科学基金资助项目（20120240）． （）
