改进自适应加权的海面目标距离测量和跟踪  

Improvement of adaptive weighted distance measurement and tracking for sea surface targets

作　　者：胡爱兰[1] 覃永松 Hu Ailan;Qin Yongsong(National Computer System Engineering Research Institute of China,Beijing 100083,China;School of Computer Science and Technolog,Xidian University,Xi′an 710000,China)

机构地区：[1]华北计算机系统工程研究所,北京100038 [2]西安电子科技大学计算机科学与技术学院,陕西西安710000

出　　处：《电子技术应用》2024年第7期20-28,共9页Application of Electronic Technique

摘　　要：海上目标距离探测和跟踪是海洋安全和军事应用中的关键任务之一,针对复杂海面环境在海杂波等影响因素下目标距离测量精度低的问题,提出了一种改进的多传感器数据融合算法。该算法利用海面舰船雷达及陆地雷达联合探测结果,先对多个数据源数据进行坐标系转换,利用Robust Z-score方法进行纵向数据预处理剔除异常数据,再通过重新定义置信距离度量,将置信度较高的传感器结果代替被踢除数据后,对结果进行自适应加权融合。同时,为了进一步提高数据精度,引入了一种分段融合机制,将改进的传感器数据融合算法与阶梯式自适应加权融合算法进行级联,通过度量各分段融合结果的相似度,设定一个置信阈值,通过该置信阈值确定最终的融合结果。仿真实验结果证实了算法的有效性和准确性。The detection and tracking of maritime targets are key tasks in maritime security and military applications.To address the low measurement accuracy of target distance in complex maritime environments,affected by factors such as sea clutter,an improved multi-sensor data fusion algorithm is proposed.The algorithm utilizes the joint detection results of shipborne radar and land-based radar on the sea surface.Firstly,the data from multiple sources are transformed into a common coordinate system.Then,the Robust Z-score method is employed for preprocessing the longitudinal data to eliminate abnormal data.Subsequently,by redefining the confidence distance measure,sensor results with higher confidence are used to replace the discarded data,and an adaptive weighted fusion of the results is performed.Furthermore,to further improve the data accuracy,a segmented fusion mechanism is introduced.The improved sensor data fusion algorithm is cascaded with a stepwise adaptive weighted fusion algorithm.By measuring the similarity of the fusion results in each segment and setting a confidence threshold,the final fusion result is determined.Simulation experiments confirm the effectiveness and accuracy of the algorithm.

关 键 词：海上目标距离探测 多传感器数据融合 支持度 分段融合 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]