发明名称 Carrier wave synchronization for multi-level two-dimensional modulation alphabets
摘要 In a method for realizing carrier wave synchronization in the receptio of a multi-level, two-dimensional modulation signal, the received signal is demodulated by using at least one local oscillator (3) in order to generate the local oscillator frequency. In the method, the local oscillator (3) performs a frequency scanning within the frequency range of the reception; during the frequency scanning, a demodulated signal point system is formed of the received signal by using the frequency generated by the local oscillator (3). Furthermore, the demodulated signal point system in the method is examined in order to determine at which point of time the frequency of the local oscillator is synchronized to the carrier wave frequency of the received modulation signal.
申请公布号 US6008692(A) 申请公布日期 1999.12.28
申请号 US19970916914 申请日期 1997.08.15
申请人 NOKIA TECHNOLOGY GMBH 发明人 ESCARTIN, MARKO
分类号 H04L27/38;(IPC1-7):H04L27/38 主分类号 H04L27/38
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