Research On Key Technologies Of Radar Display Terminal With Function Enhancement

The radar display terminal is the terminal equipment used to display the radar information automatically,as the only interface between operator and machine,it has a important position in the whole radar system.There are some limitations in the traditional radar display terminal using ARPA to process radar data,which can not meet the requirements of the observation.With the development of computer technology,image processing technology and software technology,the use of PC instead of the original radar display has become the mainstream of international trends.Because the software of radar display terminal is still in development,the work of this thesis is the analysis of the key technology of the main module,puts forward the feasible scheme,and simulates principle diagram and realises program using the software platform.The main contents are as follows:The thesis analyzes the four signal 's(Bearing signal,prow signal,radar video echo signal and trigger pulse)timing relationship and their respective characteristics parameters.Using Protues Pro 7.8 platform designs interface circuit to implement different forms cooperative acquisition system,which expand the radar display terminal compatibility.The radar data processing,using CPU+GPU heterogeneous model,configuration of CUDA5.5 in Visual Studio 2010 environment.The use of GPU parallel computing improves the detection speed of the target,and the development of CPU multithreading for radar target tracking,transmission and display,thereby improving the processing efficiency,to meet the real-time requirements of the system.The transmission thread work is the radar video image compression encoding through the TCP protocol to send to the client LAN,realize multipoint real-time monitoring purposes,and expand the storage space.The radar image display thread abandons the original coordinate conversion method,and establishes the mapping relationship between the polar coordinates and the Cartesian coordinates through the index terms,which makes up for the defects of the traditional method.Based on the conventional display,using the method of template convolution,add 3D three-dimensional relief display of 2D Radar images,and provides different light irradiation direction,caused by the different observation experience.Finally,the thesis includes enhancing the function of terminal acquisition,transmission,processing and display of the key technologies of the four important aspects of the research and implementation of radar display,on the basis of the original features to complete the enhancement and optimization,to obtain more abundant information,realize the radar system better laid the foundation.