发明授权
US09197400B1 Method and apparatus for joint estimation of carrier frequency offset and sampling frequency offset 有权
用于联合估计载波频率偏移和采样频率偏移的方法和装置

  • 专利标题: Method and apparatus for joint estimation of carrier frequency offset and sampling frequency offset
  • 专利标题(中): 用于联合估计载波频率偏移和采样频率偏移的方法和装置
  • 申请号: US13898156
    申请日: 2013-05-20
  • 公开(公告)号: US09197400B1
    公开(公告)日: 2015-11-24
  • 发明人: Jing Fang
  • 申请人: MARVELL INTERNATIONAL LTD.
  • 申请人地址: BM Hamilton
  • 专利权人: MARVELL INTERNATIONAL LTD.
  • 当前专利权人: MARVELL INTERNATIONAL LTD.
  • 当前专利权人地址: BM Hamilton
  • 主分类号: H04L27/06
  • IPC分类号: H04L27/06 H04L7/00
Method and apparatus for joint estimation of carrier frequency offset and sampling frequency offset
摘要:
In a method for determining timing information in a receiver, a receiver receives a modulated signal and demodulates the modulated signal using an demodulator to produce a demodulated signal. An analog to digital converter converts the demodulated signal to a digital signal and first and second signals are produced from the digital signal. The first signal is analyzed to determine a first phase difference with respect to different portions of the signal, and the second signal is analyzed to determine a second phase difference with respect to different portions of the second signal. The second signal is a frequency domain representation of at least a portion of the first signal. A joint estimate of a sampling period offset and a carrier frequency offset is generated based on the first phase difference and the second phase difference.
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