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This paper attempts to do a research on the development of software defined radio(SDR) based on software communication architecture(SCA). Firstly, SCA is studied and a whole reference model of SCA3.0 core framework (CF)is realized; Secondly, an application-specific FM3TR waveform is implemented on the platform of common software based on the reference model; Thirdly, from the point of view of real-time performance and software reuse, tests and validations are made on the above realized CF reference model and FM3TR waveform. As a result, the SCA-compliant SDR has favorable interoperability and software portability and can satisfy the real-time performance requirements which are not too rigorous.