Interface Control Of Signal Processing Subsystem Based On PCIe

Faced with the continuous development of modern Radar and proposal of software Radar's new architecture, it is required that Radars should exhibit a much stronger performance. At the same time, a software radar realizes interconnection communication via high-speed serial buses on the basis of computer software programming, which puts forward a higher demand on the ability of systematic data processing and transmission?function reliability and scalability. Therefore it becomes a vital problem that how to combine computer technology with the features of Radar's signal processing system to shorten radar development cycle and improve system performance.Firstly, this paper mainly studies the application status and development situation of open system architecture?signal processing subsystems?high-speed interconnection buses and other aspects on data transmission and controlling management techniques related, which demonstrates the theoretical basis of controlling signal processing subsystem interface via PCIe.Based on the data transmission and controlling management technology research analysis, we can choose WDM driver and analyze the model of WDM driver.This paper provides a standardized PCIe device driver design to realize hardware access?interrupt handling?DMA transmission in driver via Driver Studio?DDK and Visual C++ combined tools.Finally, based on the previously provided PCIe device driver and features of Windows programming, we can implement a signal processing subsystem controlling software and ensure the independence of each software through MFC hierarchical design.This paper elaborates a design method of data acquisition and storage system software in detail and realizes the data acquisition storage application program; The display monitoring system function is analyzed and display monitoring application program is preliminarily realized in this paper; Combining the characteristics of visualization platform, we also implement the PCIe code loading application program. Through the practical application in a radar signal processing system,it is proved that the research which put computer technology into radar real-time signal processing system has the advantages of standardization?generality and flexible extension.