| Based on the analysis of the characteristics of MF-TDMA system and the research of the Filtered Multi-tone Modulation technology, this paper proposes optimized Filtered Multi-tone Modulation Time Division Multiple Access (FMT-TDMA) for satellite communication system combining with the development of implementation technology.Considering actual needs, this paper focuses on Filtered Multi-tone Modulation and Demodulation technology, the star networking technology and the resource allocation of channel technology of FMT-TDMA, which mainly includes:Firstly, this paper outlines the research status of the Filtered Multi-tone Modulation technology and channel resource allocation algorithm; and then, this paper analyses the principle and implementation of key techniques of Filtered Multi-tone Modulation and Demodulation technology; in the following, this paper gives detailed engineering scheme of Filtered Multi-tone Modulation and Demodulation technology; meanwhile, the channel equalization technology is studied because the sub-channel of the FMT-system will inevitably introduce ISI (Inter-symbol Interference). Secondly, based on the research of the star networking technology and the mesh networking technology, this paper proposes the design method of the frame structure according to different networking configuration. In the following, this paper introduces the basic concept and allocation strategy of channel allocation algorithm; further, this paper analyzes and simulates cycle allocation algorithm and its modified version. Finally, this paper introduces the basic concept of slot mismatch and reallocation for two-dimensional channel resource allocation; with regard to the typical slot reallocation algorithm, this paper analyzes the principle and performance of slot conflict chain algorithm; based on the analysis of the characteristics of MF-TDMA system, this paper proposes modified slot allocation algorithm which shortens effectively the time of channel allocation. |
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