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OFDM信号接收电路设计分析

更新时间:2020-05-20 06:12:22 大小:274K 上传用户:IC老兵查看TA发布的资源 标签:ofdm信号接收电路 下载积分:5分 评价赚积分 (如何评价?) 打赏 收藏 评论(0) 举报

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基于无线局域网(Wireless Local Area Networks,WLAN)的正交频分复用(Orthogonal Frequency DivisionMultiplexing,OFDM)信号,提出了一种低成本、小体积的接收机设计方案。采用零中频下变频技术,简化了接收机电路结构,并且通过对影响接收性能关键技术指标的分析,证明该设计能够满足OFDM信号接收解调要求。介绍了一种宽带全直流耦合驱动电路的设计方法,为下变频电路和采样电路间的提供可靠连接,解决含直流宽带信号传输中普遍存在的直流漂移和增益稳定问题。通过实际测试结果验证了接收方案的正确性和工程实用性。

Based on OFDM signal,a design of low cost receiver with small size is proposed.By using down-conversion of zero IF,the structure of the receiver is simplified,and from analysis on the main characteristics that affect performance of the receiver,this design is proved available,provided for the OFDM signal receiving.While,for wideband signal transmission,a design of driver circuit with DC coupling is depicted,provided to link the down-converter and the sample circuit reliably,for solving two problems that occur in wideband signal transmission commonly,such as DC offset and gain stabilization.The experiment results show that this receiving scheme has validity a...

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OFDM信号接收电路设计分析.pdf 274K

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