| 摘要 |
<p>Each symbol represented by a series of binary bits, is converted into a phase modulated signal, before finite duration digital pulse response filtering. A digital-analogue converter converts the filtered signal into an analogue signal. - A pass-band filter separates the required signal from unwanted components, and a converter/frequency multiplier increases the frequency of the filtered signal. The moden also includes a circuit providing a Gray code signal for each symbol.</p> |
