| With the continuous development of marine detection means,the ability of perceptual detection of targets to obtain multi-dimensional target data is gradually enhanced.Synthetic aperture radar,shore based sonar,infrared imaging and other sensors are emerging in endlessly.The comprehensive use of multi-dimensional incremental data such as position,image and electromagnetic to identify and judge maritime targets has become a major trend in the field of maritime supervision.In the sea area situation management system,the data fusion system as the intermediate processing layer,when the perception layer continuously detects the target feature information,how to access and process the multi-dimensional heterogeneous sensor information and accurately identify the target through data fusion has become the key to ensure the stable operation of the system.At present,although there have been some researches on the detection and recognition of marine targets based on a variety of sensor means,most of them only focus on the single sensor means or the simple matching of two sensor data,and do not comprehensively use the internal space-time relationship between multidimensional data for data association,nor consider the matching and fusion of incremental detection data and historical feature information of targets,so as to improve the accuracy of target recognition.In view of the above problems,this paper designs and implements an incremental data fusion system based on the actual needs of sea area supervision for target recognition,combined with the real sensor detection data at sea.In order to store multi-dimensional perceptual data on the sea,a multi-level data storage system composed of real-time relational database,massive distributed database and target information map database is used to store multi-dimensional heterogeneous data and provide support for data fusion calculation.On this basis,through the data fusion module,the multi-dimensional data of the same target are correlated in real time and the incremental fusion of historical information,so as to realize the accurate identification and determination of the target.The test shows that the data fusion system designed in this paper can meet the needs of marine target recognition and has high performance in the actual operation,which proves that the system designed in this paper is feasible and effective. |
