Design And Implementation Of Modular Secondary Surveillance Radar System

With the development of industry,science and technology in China,the number of aircraft air lead to increasing air traffic is becoming more and more busy,especially the low-altitude airspace after open,the air traffic situation will worsen.Secondary radar system as a modern air traffic is very important in the field of monitoring equipment,is the key to the correct implementation of airborne command means,to guarantee normal operation of civil aviation flight safety,flights,improve the use efficiency,alleviate the situation of the air traffic plays an important role.At present,secondary radar integral design pattern development cycle is long,the cost of resources,more can't adapt to the development trends of product diversification,rapidness and market competition,need a new design concept to meet the demand of diversification,the task of the rapidness,modular design is a kind of design method emphasizes the universality and interchangeability,to shorten product development cycle,reduce the product cost is of great importance,it conforms to the development trend of product diversification,rapidness and market competition.The thesis mainly carried out the following work:1.Theoretical study and literature reading.Secondary radar and the modular design of relevant literature,standards for reading,combined with the actual work experience,form a modular secondary radar system design train of thought,and the basic principle of modular secondary radar system,the modular design principle,the interference suppression technology and channel calibration technology and so on carries on the summary and explanation,for requirement analysis and design of the subsequent chapters.2.Demand analysis.Of the modular secondary radar system function demand,performance demand analysis,raises equipment needs,including signal processing,transmitting,receiving,rf switch,array antenna equipment needs,elaborates the requirements of the test,finally.3.System design.In system emphatically considered in the design of system architecture,working principle,working process and system index and work process includes the launch process,receiving process,paper expounds emphatically the design of index system,including the system of distance,azimuth resolution,range and azimuth precision accuracy,range resolution and asking cycle,the working process of secondary radar design.4.System implementation.For the realization of the secondary radar system are expounded,including asking extension,switch machine,and the implementation of the radar monitoring/local monitoring software,mainly expounds the ask an extension of the realization of the signal processing module,including the function of the signal processing module,performance,composition and principle,the relationship between the interface,the hardware design,software design and the key function implementation,a total of seven aspects of content.5.System test and deployment.Explain the purpose of system test,test and verification environment,test block diagram and test steps,and finally list the test results and draw conclusions based on the test results.At the end of this paper,the work of the whole paper is summarized and the research direction is summarized.