Research On Data Processing Technology Of River Regulation Radar

Data processing is one of the key technologies of the river regulation radar,accurate positioning of the river boats,buoy and reefs for river regulation is very important.For monitoring radar data,target detection,point tracking and target tracking are needed.Because of the density of ships in the river,the size and shape of ships are different,as well as reefs,buoys and other objects,target detection needs to be able to detect high-speed moving targets and low-speed weak targets.Clutter is an important factor that affects the performance and accuracy of radar target detection.In this thesis,clutter suppression and target detection of river monitoring radar are studied,and a radar signal processing method is proposed.In this method,MTI and MTD are used to suppress fixed clutter.Clutter region estimation and cancellation are used to detect high-speed moving targets.Clutter region estimation and clutter whitening are used to detect low-speed weak targets.Experimental results show that this method can effectively detect high-speed moving targets and low-speed weak targets in clutter.Because of the complex river environment,false targets and target splitting will appear in the results of target detection,so it is necessary to agglomerate the points of the target detection results to obtain more accurate target location information.In this thesis,the information of object shape features is introduced,and a point-trace coagulation algorithm based on azimuth connectivity and object shape features is proposed.In azimuth direction,the sliding window is used to coagulate the distance direction,and then the azimuth direction is judged to realize azimuth coagulation.Mark out.The complexity of the algorithm is low,and it can compensate part of the target trace information.Experimental results show that this method can effectively prevent target splitting and eliminate false targets.In the process of river regulation radar data processing,after obtaining accurate target information,target tracking processing is needed to form a moving target track,so as to facilitate the monitoring of ships in the river and prevent ships from colliding with each other or with the island and reef collision.In this thesis,the condensed target points are tracked and processed,and the track display software is designed to display the track of moving target.