Research On Design And Implementation Of The Access Network Waveform Componentization Based On SCA

As the key technology of software defined radio,software communication architecture(SCA)has became the top-level design specification for the development of software radio systems.Because of the limitations of the traditional development methods of the Tactical Access Network Waveform,it leads to low development efficiency,high upgrade cost,and the problems of poor portability and reusability.In order to improve the development efficiency and quality of the Tactical Access Network Waveform,and ensure the portability,reusability and dynamic configuration of the waveform,the research on design and implementation of the Access Network Waveform based on SCA waveform componentized technology are carried out in this paper.By analyzing the application background,development trend and protocol stack structure of the Tactical Access Network Waveform.Then,the component division,component design,component deployment and component implementation of the Access Network Waveform are completed by using SCA waveform componentized technology.Finally,the assembly and intermediate frequency test of the Access Network Waveform are completed on the test platform.The whole work is combined with the next generation shortwave radio station project of a domestic communication company.The application of SCA waveform componentized technology in the Tactical Access Network Waveform can improve the development efficiency,shorten the development cycle and give full play to the advantages of the software radio technology.The mian work and results of this paper are as follow:1.SCA waveform componentized technology has been studied.The basic application interface of the core framework is analyzed for the control,management function and its function mechanism provided for the waveform components.The key technologies of SCA waveform componentization are deeply studied from three aspects: the CORBA component model of waveform,the port definition and interface design of waveform components,and the domain configuration files of waveform components.The development process of SCA waveform componentization of engineering implementation is proposed.2.Based on the protocol stack structure of the Access Network Waveform and the principle of waveform software component division,we design the structure of physical layer components and network link layer components and model components with UML.The platform correlation of Access Network Waveform components and waveform deployment are dipicted.The design target of the Access Network Waveform is put forward and the hardware platform of the waveform implementation is set up.We implement the physical layer baseband processing component in modularization and implement the access component and the GPP hardware abstraction layer of network link layer components according to the UML class diagram of components and the implementation method of CORBA component.3.The Access Network Waveform components are assembled on the test platform and the waveform is loaded.The time/frequency domain diagram of the intermediate frequency output is compared with the MATLAB intermediate frequency simulation results.Intermediate frequency PING package experiment and data transmission experiment are carried out between the main station and slave station.The analysis of the experimental results show that the Access Network Waveform based on the SCA waveform componentized technology achieves the preliminary design target.The application of SCA waveform componentized technology in the development of the Access Network Waveform is effective and feasible.The Access Network Waveform that accords with the SCA specification has the advantages of components portability,reusability and dynamic configuration of waveform.