摘要
天文导航在导航系中有着不可替代的地位,由于客观原因,舰船在海平面上航行必然会摇摆,针对这一摇摆角问题,提出了基于粗略水平基准的水天线测量法。该方法以TDS642EVM多路实时图像处理平台为硬件电路,软件算法采用自适应阈值分割和小波变换进行边沿信号检测,最后利用Hough变换获取水天线的具体位置信息,所有算法在CCS2.0环境下编程实现。
Astronomic navigation plays an important role in the ship navigation system. Due to the ob jective causes,ship may swing in navigation. Aiming at the problem of swing,the water-sky-line signal processing method based on the rough horizontal norm is investigated. Based on the multi-channel real time image processing windows of TDS642EVM, the automatic threshold division and wavelet transform are realized in the algorithm for edge detection. At last,all algorithms are programmed in the environment of CCS2.0.
出处
《江苏科技大学学报（自然科学版）》
CAS
北大核心
2006年第1期61-64,共4页
Journal of Jiangsu University of Science and Technology:Natural Science Edition
关键词
阈值分割
中值滤波
小波变换
边沿检测
threshold division
median filter
wavelet transforms
edge detection
