| 扩频系统中自动频率校正单元的设计与实现 |
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| 引用本文： | 李俨 尤肖虎. 扩频系统中自动频率校正单元的设计与实现[J]. 东南大学学报(自然科学版), 1998, 28(2): 15-20 |
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| 作者姓名： | 李俨 尤肖虎 |
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| 作者单位： | 东南大学移动通信国家重点实验室 |
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| 摘 要： | 针对ＩＳ－９５码分多址蜂窝通信系统标准，给出了一种在从导引信道上提取信道参数并同时获取对载频频差的估计方案，给出了自动频率校正环路的设计方案，及其ＦＰＧＡ实现。该方案简单可行，硬件资源消耗少，且能明显改善移动台接收机的性能。
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| 关 键 词： | 自动频率校正 扩频系统 多址通信系统 |
Design and Implementation of Automatic Frequency Correction Unit for Spread Spectrum Receiver |
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| Li Yan You Xiaohu Cheng Shixin. Design and Implementation of Automatic Frequency Correction Unit for Spread Spectrum Receiver[J]. Journal of Southeast University(Natural Science Edition), 1998, 28(2): 15-20 |
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| Authors: | Li Yan You Xiaohu Cheng Shixin |
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| Abstract: | According to the definition of IS 95 CDMA cellular communication system, an automatic frequency correction scheme is presented, which gets the estimation of frequency offset while the channel parameters are obtained from pilot channel. The design of automatic frequency correction loop and FPGA implementation is given. The results of computer simulation show that by using this scheme the performance of the mobile's receiver is improved obviously. |
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| Keywords: | direct sequence spread spectrum automatic frequency correction FPGA implementation |
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