Sar Real-time Processor Data Transfer Interface Design And Realization

Synthetic Aperture Radar (SAR) imaging technique is related with electronic engineering, computer science and digital signal processing. The computation task of Synthetic Aperture Radar (SAR) is huge. To reach real-time speed, besides some high-performance devices, the high-performance interface of data communication is needed. The task of this project is to realize real-time imaging system by hardware, using the data from space-borne satellite. The main work of this thesis is to realize the interface of data communication of this system.The main contents of this thesis can be concluded as following:1. According to the task of the project, based on discussion of SAR key system parameter, PCI bus is selected to realize the interface of system, and PCI9054 is selected as key IC of the interface. The data transmission and control on local bus is cooperated with FPGA.2. The hardware realization of SAR imaging system, including interface circuit design, wave simulation, programming and debugging. The whole system have been tested using the original data, get perfect performance.3. Design the protocol of data transmission based on PCI bus, ensure the stability and accuracy of transmission.4. Research several solution of realization of the communication interface, do some valuable attempt to improve efficiency of transmission based on the current scheme.This project has realized the SAR real-time imaging system utilizing hardware, which is valuable in military and civil application. The main work of this paper lies in the realization of high-performance interface based on PCI bus, which is significant in achieving real-time performance.