Invention Grant
- Patent Title: Method and device for processing the frequency shift of the carrier frequency of a signal modulated with a quadrature continuous single-carrier modulation
- Patent Title (中): 用于处理以正交连续单载波调制调制的信号的载波频率的频移的方法和装置
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Application No.: US12360543Application Date: 2009-01-27
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Publication No.: US08165259B2Publication Date: 2012-04-24
- Inventor: Bruno Paille
- Applicant: Bruno Paille
- Applicant Address: FR Montrouge
- Assignee: STMicroelectronics, S.A.
- Current Assignee: STMicroelectronics, S.A.
- Current Assignee Address: FR Montrouge
- Agency: Gardere Wynne Sewell LLP
- Priority: FR0310388 20030902
- Main IPC: H03D3/24
- IPC: H03D3/24
Abstract:
A frequency shift of a carrier frequency of an input signal is estimated with a frequency estimator in order to obtain an estimate value. Then, the estimate of the frequency shift is refined, and the carrier frequency is corrected in consequence, with a phase-locked loop that is initialized with the estimate value. The phase-locked loop has a locking frequency range that is narrower than a locking frequency range of the frequency estimator.
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