Invention Grant
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
- Patent Title: Method, a program and a module to estimate a doppler maximum frequency and an oscillator frequency offset, receiver including the module
- Patent Title (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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Application No.: US12067973Application Date: 2006-09-25
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Publication No.: US07925286B2Publication Date: 2011-04-12
- Inventor: Pierre Demaj
- Applicant: Pierre Demaj
- Applicant Address: CH Geneva
- Assignee: ST-Ericsson SA
- Current Assignee: ST-Ericsson SA
- Current Assignee Address: CH Geneva
- Agency: Hogan Lovells US LLP
- Agent William J. Kubida; Peter J. Meza
- Priority: EP05300776 20050927
- International Application: PCT/IB2006/053475 WO 20060925
- International Announcement: WO2007/036866 WO 20070405
- Main IPC: H04B1/00
- IPC: H04B1/00 ; H04L27/06 ; G01S1/02
Abstract:
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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