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Synchronous acquisition circuit and a synchronous acquisition method of a spread spectrum code
Synchronous acquisition circuit and a synchronous acquisition method of a spread spectrum code
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机译：扩频码的同步捕获电路和同步捕获方法
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摘要
In a synchronous acquisition method of a spread spectrum code, a digital code sequence is generated based on a received radio communication signal. The digital code sequence defines a spread spectrum code which includes a preamble symbol. A plurality of correlation signals are generated based on the spread spectrum code of the digital code sequence. A detection signal is generated in accordance with the correlation signal which corresponds to the preamble symbol. A timing control signal is generated in accordance with the detection signal. A demodulation signal is generated based on the correlation signals and in accordance with the timing control signal. A correction signal is generated based on the demodulation signal. A corrected timing control signal is generated based on the timing control signal and the correction signal, such that the demodulation signal corresponds to the preamble symbol.
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