| This thesis deals with the synchronization technologies for all digital receiver, particularly carrier offset estimation for MPSK signal.In this paper, a survey of software radio conception and characteristics of all digital receiver is presented first. Then a variety of key technologies of all digital receiver, especially carrier synchronization are discussed in detail and the corresponding simulation results are also given. After that, based on the above discussion and technology comparison, an improved NDA(Non-data-aided) carrier offset estimation algorithm is proposed which has the advantages ofimproved carrier offset estimation performance and can be realized by high-speed DSP chips.Simulation results show its feasibility. |
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