BI-PHASE COMMUNICATION DEMODULATION METHODS AND APPARATUS

摘要

A bi-phase communication receiver system includes an analog-to-digital converter (ADC) (12) configured to sample a bi-phase modulation signal (IN) to generate digital samples of the bi-phase modulation signal. The system also includes a bi-phase signal decoder (14) configured to decode the bi-phase modulation signal based on the digital samples. The system further includes a preamble detector (16) comprising a digital filter (18) configured to evaluate the digital samples to generate an output and to detect a preamble of the bi-phase modulation signal for decoding the bi-phase modulation signal based on the output.