摘要
为提高无线基站勘察效率,给出了一种改进的图像拼接方法,并将其应用到无线基站勘察中进行验证。首先提取无线基站勘察图像的SIFT特征点,然后计算其64维向量描述子;采用最近邻与次近邻之比进行双向匹配,消除匹配错误;采用加权平均融合法进行图像融合,最后将此方法结合无线基站勘察进行实际应用。实验结果证明,本文方法能够精准快速进行勘察图像拼接,有较好鲁棒性,能够明显提高了勘察人员的工作效率,具有一定的实际应用价值。
According to the tactical use of self-propelled acoustic decoy and submarine characteristics, the location method of self-propelled acoustic decoy based on short baseline array is discussed, and the short baseline array system＇s function and array are designed. The Short baseline array＇ s position calculating method is also studied, and analysed direction-finding error distribution of typical working conditions. The simulation results show that di- rection-finding precision of the system is better than 1 degree within 5 km range , that can satisfy the countermeasure efficiency assessment requirements of the self-propelled acoustic decoy.
出处
《科学技术与工程》
北大核心
2013年第36期10962-10966,共5页
Science Technology and Engineering
基金
国家科技重大专项(2009ZX03003-01)
科技型中小企业技术创新基金(11C26215113601)资助
关键词
无线基站
SIFT描述子
图像拼接
实际应用
self-propelled acoustic decoy submarine short baseline array localization algorithm
