发明授权
US07925286B2 Method, a program and a module to estimate a doppler maximum frequency and an oscillator frequency offset, receiver including the module
有权
方法，程序和模块，用于估计多普勒最大频率和振荡器频率偏移，接收器包括模块
- 专利标题： Method, a program and a module to estimate a doppler maximum frequency and an oscillator frequency offset, receiver including the module
- 专利标题（中）： 方法，程序和模块，用于估计多普勒最大频率和振荡器频率偏移，接收器包括模块
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申请号： US12067973申请日： 2006-09-25
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公开(公告)号： US07925286B2公开(公告)日： 2011-04-12
- 发明人: Pierre Demaj
- 申请人： Pierre Demaj
- 申请人地址： CH Geneva
- 专利权人： ST-Ericsson SA
- 当前专利权人： ST-Ericsson SA
- 当前专利权人地址： CH Geneva
- 代理机构： Hogan Lovells US LLP
- 代理商 William J. Kubida; Peter J. Meza
- 优先权： EP05300776 20050927
- 国际申请： PCT/IB2006/053475 WO 20060925
- 国际公布： WO2007/036866 WO 20070405
- 主分类号： H04B1/00
- IPC分类号： H04B1/00 ; H04L27/06 ; G01S1/02
摘要：
A method of estimating a Doppler maximum frequency fd and/or a local oscillator frequency offset f0, the method comprising the steps of: computing a power density spectrum of a received radio signal over a whole frequency range, scanning the computed power density spectrum to determine a frequency sub-range [fmin; fmax] which is not necessarily centered on 0 Hz, the signal power over the sub-range [fmin; fmax] being equal to a predetermined percentage of the signal power over the whole frequency range, and estimating frequency fd and/or offset f0 from frequencies fmin and fmax.
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