电子测试
電子測試
전자측시
ELECTRONIC TEST
2012年
10期
1-5,11
,共6页
TD-SCDMA%物理层%信道编码复用%解码解复用
TD-SCDMA%物理層%信道編碼複用%解碼解複用
TD-SCDMA%물리층%신도편마복용%해마해복용
TD-SCDMA%physical level%coding/multiplexing%decoding/demultiplexing
TD-SCDMA标准是由中国提出的,以我国知识产权为主的、被国际上广泛接受和认可的无线通信国际标准。本文主要研究TD-SCDMA上行链路物理层的核心技术即传输信道编解码和复用解复用技术。TD-SCDMA采用了比较完善的编码复用方案,首先对数据流进行复杂的编码和复用,经过物理信道映射之后再对数据进行扩频加扰和调制,最后由天线以适当的功率发射出去。本文对编码复用以及解码解复用过程建立仿真模型,讨论了模型中各模块的具体实现算法。在MATLAB中对TD-SCDMA上行链路物理层传输信道编码复用和解码解复用过程进行了仿真,验证了算法的正确性。
TD-SCDMA標準是由中國提齣的,以我國知識產權為主的、被國際上廣汎接受和認可的無線通信國際標準。本文主要研究TD-SCDMA上行鏈路物理層的覈心技術即傳輸信道編解碼和複用解複用技術。TD-SCDMA採用瞭比較完善的編碼複用方案,首先對數據流進行複雜的編碼和複用,經過物理信道映射之後再對數據進行擴頻加擾和調製,最後由天線以適噹的功率髮射齣去。本文對編碼複用以及解碼解複用過程建立倣真模型,討論瞭模型中各模塊的具體實現算法。在MATLAB中對TD-SCDMA上行鏈路物理層傳輸信道編碼複用和解碼解複用過程進行瞭倣真,驗證瞭算法的正確性。
TD-SCDMA표준시유중국제출적,이아국지식산권위주적、피국제상엄범접수화인가적무선통신국제표준。본문주요연구TD-SCDMA상행련로물리층적핵심기술즉전수신도편해마화복용해복용기술。TD-SCDMA채용료비교완선적편마복용방안,수선대수거류진행복잡적편마화복용,경과물리신도영사지후재대수거진행확빈가우화조제,최후유천선이괄당적공솔발사출거。본문대편마복용이급해마해복용과정건립방진모형,토론료모형중각모괴적구체실현산법。재MATLAB중대TD-SCDMA상행련로물리층전수신도편마복용화해마해복용과정진행료방진,험증료산법적정학성。
The TD-SCDMA system, which is first put forward by China, has been widely accepted and recognized by the international on international standards for wireless communications. In this paper, an in- depth analysis on the channel coding/decoding and multiplexing/demultiplexing which is the core technology of uplink physical layer is proposed. TD-SCDMA adopts a more perfect program of coding complex. Firstly the data streams are being coded and multiplexed, Then the data streams are spread spectrum scrambled and modulated after physical channel mapping. Finally, the data streams are sent by antennas in an appropriate power. The modules of coding multiplexing and decoding demultiplexing are made and the algorithm of each module in the realization model is confirmed. To ensure the method is tight, we simulate the process of channel coding/ multiplexing and decoding/demultiplexing of TD-SCDMA for uplink based on MATLAB.
