Abstract:

In view of the highspeed and realtime transmission problem of radar IQ fiberoptic data stream,a radar IQ Fiberoptical data acquisition and transmission system is designed based on the Stratix II GX series FPGA,the CPCI international standard bus and other hardware devices.Some key technologies such as data rate automatic identification,pingpang cache,realtime interrupt processing are applied in this system.Emphasis is put on the structure of the data acquisition and transmission system and its design principle.Hardware design,FPGA design and software design are also introduced.Experiments results show that this system has stable performance.

Key words: CPCI bus;FPGA;data acquisition;fiberoptical transmission;DMA