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发明申请
US20130007082A1 DIGITAL FRONT END FOR OVERSAMPLED LOW-IF OR ZERO-IF MULTIMODE RECEIVERS 有权
用于超低频或零中频多模接收器的数字前端

  • 专利标题： DIGITAL FRONT END FOR OVERSAMPLED LOW-IF OR ZERO-IF MULTIMODE RECEIVERS
  • 专利标题（中）： 用于超低频或零中频多模接收器的数字前端
  • 申请号： US13173365
    申请日： 2011-06-30
  • 公开(公告)号： US20130007082A1
    公开(公告)日： 2013-01-03
  • 发明人: Javier Elenes
  • 申请人： Javier Elenes
  • 主分类号： G06F17/10
  • IPC分类号： G06F17/10 ;  H03M3/02
DIGITAL FRONT END FOR OVERSAMPLED LOW-IF OR ZERO-IF MULTIMODE RECEIVERS
摘要：
A digital radio signal is processed by converting an analog signal to a digital signal, decimating the digital signal using a CIC filter and supplying the decimated digital signal directly to an asynchronous sample rate converter (ASRC). The decimated signal is resampled in the ASRC and the ASRC output is supplied directly to a droop compensation filter to compensate the output of the ASRC. By carefully choosing the response of the CIC filter and the resample rate of the ASRC, aliased artifacts in the pass band can be kept below a threshold magnitude without the need for a channelization filter.
摘要（中）：

数字无线电信号通过将模拟信号转换为数字信号来处理，使用CIC滤波器抽取数字信号并将抽取的数字信号直接提供给异步采样率转换器（ASRC）。 抽样信号在ASRC中重新采样，ASRC输出直接提供给下降补偿滤波器，以补偿ASRC的输出。 通过仔细选择CIC滤波器的响应和ASRC的采样速率，通带中的混叠伪像可以保持在阈值以下，而不需要信道化滤波器。

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