HFA3860 Просмотр технического описания (PDF) - Intersil

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HFA3860

11 Mbps Direct Sequence Spread Spectrum Baseband Processor

Intersil 

HFA3860

The other signal quality measurement is based on phase

noise and that is taken by sampling the correlator output at the

correlator peaks. The phase changes due to scrambling are

removed by differential demodulation during initial acquisition.

Then the phase, the phase rate and the phase variance are

measured and integrated for 16 symbols. The phase variance

is used for the phase noise signal quality measure (SQ2). Low

phase noise means a stronger received signal.

The antenna with the best phase noise is chosen when dual

antennas are implemented.

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