| 摘要 |
A method and apparatus for acquiring slot timing and frequency offset correction of a local oscillator, provided for use in a direct sequence spread spectrum receiver. The received signals in such a system comprise a plurality of sequential slots of data. Some of these comprise synchronization data. At least two different correlations are performed at a receiver between the received data and a locally stored synchronization code. These are compared to determine which give the strongest correlation peak and the timing of this peak is then stored. The offset to be applied to a local oscillator in the receiver is then estimated from this time and subsequently applied to the local oscillator.
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