发明名称 |
Method and apparatus for aligning a digital receiver |
摘要 |
A method is used in a receiver (100) for aligning the receiver (100). The method has a step of intercepting and demodulating the FM signal, which includes data symbols. The method has a step of determining error rates, in which the error rates of at least two subsets of the data symbols are determined. Each subset includes a plurality of the data symbols modulated at a unique one of a plurality of frequency deviations. The at least two subsets include data symbols of two opposite polarities. The method has a step of generating a frequency control signal, in which the frequency control signal is determined based on the error rates. The method has a step of aligning a receiver section (105), in which the receiver section (105) is aligned to the FM signal by controlling a local oscillator (320)which is responsive to the frequency control signal.
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申请公布号 |
US5479452(A) |
申请公布日期 |
1995.12.26 |
申请号 |
US19940300892 |
申请日期 |
1994.09.06 |
申请人 |
MOTOROLA, INC. |
发明人 |
HAYES, DAVID J.;EATON, ERIC T.;MOCK, VON A. |
分类号 |
H04L27/10;H03J7/04;H04B1/10;H04B1/26;H04L27/14;(IPC1-7):H04L27/06 |
主分类号 |
H04L27/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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