Baseband Waveform Design Based On The Software Communications Architecture And Implementation

The Software Communications Architecture (SCA) is the architecture standard in support of US Department of Defense Joint Tactical Radio System (JTRS). It was created by the Modular Software-programmable Radio Consortium (MSRC) and has been adopted by US Department of Defense. The SCA specification is pubished by the Joint Program Executive Office (JPEO). The design goal of this architecture is to assist the development of software defined radio and ensure the development of communication software possesses characteristics of interoperability and dynamic load. This architecture is also to facilitate the reuse and portability of software in order to reduce development costs and technology insertion costs. The SCA is the mandatory standards for JTRS and has also been accepted by Software Define Radio Forum and Object Management Group (OMG). The SCA is becoming a commercial architecture standard for software defined radio.The design of the SCA incorporated into advanced software engineering concepts and design patterns. The development of radio system based on SCA relates to signal processing, CORBA middleware, component oriented development, etc. Therefore, the research for the SCA is divided into several areas, including core framework, waveform, node, system integration, etc. The reasearch object of this paper is the waveform and node development in SCA.This dissertation combined with SCA specifications, have in-depth studied SCA architecture principles and related software technology. Based on the SCARI++ integrated development platform, this dissertation has studied the SCA software development methodology (waveform and node). In this dissertation, the baseband signal processing waveform as an example, we have realized the waveform development and node development under embedded platform. We have studied the problems of resource component granularity dividing, modeling, code implemention, waveform assembly and other issues in waveform development. We also have studied the problems of hardware abstraction, logical device modeling, code implemention, node assembly and other issues in node development. We have implemented the waveform deployment on target platform and verified the waveform with dynamic load capacity and functionality of reconfigurable. Compared with traditional methods, development methods used in this dissertation combine modeling, coding, compiling and other development stage seamless and more importantly, the component oriented development method will greatly enhance the efficiency and quality of the development.