电信工程技术与标准化
電信工程技術與標準化
전신공정기술여표준화
TELECOM ENGINEERING TECHNICS AND STANDARDIZATION
2013年
4期
69-74
,共6页
GSM%FFT%同步%实时性%仿真%调试
GSM%FFT%同步%實時性%倣真%調試
GSM%FFT%동보%실시성%방진%조시
GSM%FFT%synchronization%real-time%simulation%debugging
本文在分析GSM通信系统中小区初始搜索中的定时同步原理的基础上,提出了一种基于FFT的GSM下行同步算法和FPGA实现GSM粗同步和精同步的高实时性实现方案,并使用Modelsim和MATLAB对算法的正确性进行了仿真验证;最后在Altera Cyclone III FPGA硬件平台进行了板级调试和实时数据验证,结果表明该同步算法切实可行且实时性好、稳定度高.
本文在分析GSM通信繫統中小區初始搜索中的定時同步原理的基礎上,提齣瞭一種基于FFT的GSM下行同步算法和FPGA實現GSM粗同步和精同步的高實時性實現方案,併使用Modelsim和MATLAB對算法的正確性進行瞭倣真驗證;最後在Altera Cyclone III FPGA硬件平檯進行瞭闆級調試和實時數據驗證,結果錶明該同步算法切實可行且實時性好、穩定度高.
본문재분석GSM통신계통중소구초시수색중적정시동보원리적기출상,제출료일충기우FFT적GSM하행동보산법화FPGA실현GSM조동보화정동보적고실시성실현방안,병사용Modelsim화MATLAB대산법적정학성진행료방진험증;최후재Altera Cyclone III FPGA경건평태진행료판급조시화실시수거험증,결과표명해동보산법절실가행차실시성호、은정도고.
On the base of analyzing the theory of synchronization of GSM systems in the initial cell search, this paper puts forward one downlink synchronization algorithm of GSM based on FFT and high real-time performance concrete implementation scheme using FPGA to realize GSM coarse synchronization and fine synchronization. Then this paper uses Modelsim and MATLAB simulating the program to verify algorithm correctness. Finally it finishes the debugging on board of Altera Cyclone III FPGA chip to verify the real-time data, and the result shows the synchronization algorithm feasible, more real-time and higher stability.
