华中科技大学学报：自然科学版2012，Vol.40Issue(3)：26-30,5.
色散关系带通滤波器设计
Research on dispersion relationship band filter
摘要
Abstract
With the purpose of removing all energy not due to wave fields in X band radar sea clutter image spectrum,a dispersion relationship band filter was designed（DRBF）.The bandwidth of the DRBF designed depended on main wave number and maximum relative current speed of measured sea area.By adjusting its bandwidth according to the main wave number,the DRBF could be better suitable for the measured sea area,hence it had higher precision.The DRBF′s bandwidth could also be revised by maximum relative current speed,which resolved the inaccuracy existing in classical DRBF base on real measured current speed.The DRBF designed was applied with real radar data.The significant wave height,compared with in-situ sensor′s significant wave height,was inverted,showing good capabilities of the DRBF.The results show that they have high correlation and low bias.It can be seen that the DRBF designed has good performance and feasibility.关键词
图像背景噪声/船用雷达/海浪谱/有效波高/色散关系Key words
image background noise/radar-marine/wave spectrum/significant wave height/dispersion relationship分类
信息技术与安全科学引用本文复制引用
袁赣南,贾瑞才,王淑娟,戴运桃..色散关系带通滤波器设计[J].华中科技大学学报：自然科学版,2012,40(3):26-30,5.基金项目
国家自然科学基金资助项目 （）
中央高校基本科研业务费专项资金资助项目 （）
