摘要
提出一种在接收端利用阵列天线进行船舶自定位的新方法.利用ESPRIT(借助旋转不变技术估计信号参数)算法估计出波达方向角(DOA),然后与利用波达方向角计算出船舶自身所在的坐标.由于不需要同步,因此相对于测距法,系统结构得以简化.同时,此方法的测试精度比传统的测向法有了提高.
A new method of vessel positioning with an antenna array at the receiving terminal is proposed. ESPRIT (Estimating signal parameters via rotational invariance techniques) algorithm is used to estimate the direction-of-arrival which can be used to figure out the coordinates of the vessel. Compared with those systems adopting distance measurement technique, present system is simplified because of the elimination of the Time-Synchronization parts. Meanwhile,the measuring precision of the system also improves on that of the traditional angle locating system.
出处
《复旦学报（自然科学版）》
CAS
CSCD
北大核心
2005年第1期12-16,共5页
Journal of Fudan University：Natural Science
