Design And Implementation Of SoPC Based On SCA

Software Defined Radio (SDR) is a very new technology in wireless communication field. With the adoption of Digital Signal Processing, the function of each module is defined by software on the general hardware platform of programmable control, which endows the technology with openness, generality and scalability. Software Communications Architecture (SCA) provides a set of standard and open structure specifications for the implementation of software radio, ensures the generality of hardware equipments of software radio system and the openness and scalability of the whole system, and offers specific standards for the dynamic deployment and reconfiguration of software radio waveform and the modular design,transplant and multiplex of waveform components. Based on the SCA specifications, United States'Joint Tactical Radio System (JTRS) plan develops a series of software radio stations which are compatible with various communication waveforms, realizing the interconnection, intercommunication and inter-operation of tactical communication stations among various American troops, which also gives reference for our development of miniaturized tactical wireless communication system.Due to the special needs of mobile battle and battlefield environment, tactical communication equipment is very demanding for its size and power consumption. To implement wireless communication system in man-packed and hand-held communication terminals, this thesis adopts hardware/software co-design methodology of SoPC and, based on SCA, constructs a SoPC system on development board Xilinx ML507. Based on the embedded processor PowerPC and by customizing IP cores, this system designs IPIF-based reconfigurable modules and constructs a hardware platform for SoPC. On the other hand, according to SCA specifications, the system constructs an open software platform for waveform application by transplanting Linux operating system, CORBA middleware and SCA core framework. For CORBA communication between waveform components of FPGA and PowerPC, this thesis implements the Pluggable Protocol for CORBA and realizes the analysis and packaging of CORBA message by encapsulation of ORB engine. It also implements the OCP interface encapsulation of FPGA waveform components, which favors the modular design and dynamic reconfiguration of FPGA waveform components. Finally, the system constructs a multi-waveform integrated application test system and, through dynamic deployment and loading of software waveform components, reconfigures the hardware waveform components, realizing the dynamic reconfiguration of waveform application and verifying the validity and reliability of the system design. Based on SCA, this thesis implements a reconstructible, flexible miniaturized software wireless communication platform with small size and low power consumption that is compatible with both software and hardware waveforms, which provides an innovative solution for the design and implementation of radio stations for military use and communication terminals for civil use.