Design And Application About One Multi-Processor Module In Monitoring Receiver

In recent years,radio technology has developed very quickly in our country.However,a radio monitoring receiver with broad frequency scale (20-3000 MHz),high scanning rate (above 1GHz/s) and whole spectrum real-time display has not developed.Some imported monitoring receivers with broad frequency scale can only scan slowly and couldn't meet actual needs.Not only these imported receivers' price is high but also those developed countries usually limit the quantities of imported receivers and related technology is not open.A series of new technologies such as software radio,VXIbus,DSP,virtual instrument,measurement and instrument,interface technology apply to the broadband monitoring receiver related to this paper.Its research not only satisfies the needs of our radio monitoring branch,national defence branch but also breaks the technology blockage .This thesis deals with design and application of a multiprocessor made of four DSPs in monitoring receiver.The broadband monitoring receiver requires a kind of chip with high performance because of complicated intermediate frequency signal processing.The author selects a kind of digital signal processor called ADSP21160.During the process of design,the author uses CPLD, FPGA and some special CPUs to finish signal, processing in the monitoring receiver.Cluster multiprocessor based on VXIbus made of four ADSP21160 is put forward.The task distribution of four DSPs is solved too.Furthermore,data transition methods between chips at a high speed through link ports and chip extension mode using external port are recommended.The author debugs,emulates the program in one ADSP-21160 EZ-KIT Lite and simulates the multiprocessor program in VisualDSP ++. The running efficiency of software is the key to system.In the end,the author makes research of program optimization about DSP programming.