Design And Implementation Of Navigation Radar Signal Simulator

This paper is mainly based on the marine charity project "radar wave instrument".As in the outfield on radar wave meter debugging,not only need to spend a lot of resources but also affected by marine meteorological conditions and other factors.in order to facilitate the hardware test and strength test of radar wave equipment under laboratory conditions,this paper completes the design and implementation of navigation radar signal simulator.The device is mainly composed of a live recording unit and offline playback unit two units,and two units respectively based on different hardware platform,were realized on the field of radar data recording and off-line condition of radar practical work signal recovery.Firstly,this paper studies and analyzes the German Antheus navigation radar unit and radar working principle,laid a theoretical foundation for the realization of the topic.Then according to the overall design of the complex radar signal analysis and system,completed the selection of hardware,and the design of signal modulation unit in the field record the board and implementation.Finally,based on different hardware platforms,respectively,completed the design and implementation of the on-site recording unit and offline playback unit software.The software design part is combined with the standard steps of software engineering design,the first of the two unit software functional requirements are analyzed,the scheme of the software function module design completed the outline design of two element software.According to the functional requirements,on-site recording unit software is divided into man-machine interface module,data acquisition module,configuration management module,log management module and offline playback unit software is divided into radar signal file processing module,data playback module,auxiliary module.Then based on the software design,the module one by one expansion and detailed description of the function of each module,complete the record unit and offline playback unit the software design in detail.Finally the system test,respectively in the outfield on the spot recording unit was tested in the laboratory environment The offline playback unit is tested.Through the analysis of test results,which verified the reliability function of each unit,also verified the navigation radar signal simulator design,achieve the design objective,the expected soft hardware is stable,has a certain practical value.