Design And Implementation Of The Radar Signal Acquisition And Processing Equipment Of The Kirin

This paper relies on the national defense project "the improvement and development of wave monitoring equipment".Radar data acquisition and processing subsystem,as the core of ship traffic management system,mainly USES data acquisition technology,and strives for real-time,safety and accuracy in the acquisition process.However,at present,most of the wave monitoring equipment in China is mainly dependent on foreign countries.On the one hand,the equipment is expensive and inconvenient to maintain,and on the other hand,there are hidden dangers to the data and information security.Therefore,it is very necessary to study radar signal acquisition and processing equipment.In this paper,combined with the actual engineering requirements,radar signal acquisition and processing problems are studied,the main contents are as follows:First,this paper studies and analyzes the basic principle of analog signal acquisition and the characteristics of radar signal,for the design of the project implementation may provide the theoretical basis,technical indexes according to the hardware selection and software development requirements,to complete the new acquisition card selection,determine the winning Kirin operating system,Qt cross-platform tools for implementing design application software,and formulate the overall design scheme of the equipment.Secondly,in order to ensure that the new acquisition card and the bidding Kirin operating system compatibility and interface card collection and signal accuracy,first of all to static input video signal acquisition card and dynamic input test,it is concluded that the board of linearity and dc bias and dynamic characteristics,and then through the ship stem position signal test,verifies the correctness of the board to store data,delay test,and finally add interface card board delay index are obtained.Thirdly,aiming at the radar signal acquisition and processing application software,this paper first analyzes the functional requirements of the software according to the standard steps of software engineering,and then USES the modular design idea to complete the software’s outline design.The software is mainly divided into public module,signal acquisition and processing module,network module and UI module.On the basis of software outline design,carry out the corresponding detailed design and coding according to the function of each module,and complete the unit test,combination test and verification test among each module.Finally,combined with the acquisition hardware platform and data processing application software,the overall function of the equipment was verified and integrated debugging was conducted.According to the test results,it was proved that the radar signal acquisition and processing equipment reached the expected design function,and ran stably,which had certain practical engineering value.