| 摘要 |
<p>PURPOSE:To reduce the synchronization acquisition time in the spread spectrum communication while keeping the same performance against noise and disturbance as that of a conventional receiver. CONSTITUTION:This receiver is provided with an integrator 21 integrating a reception signal RS subject to inverse spread and detection for a prescribed period, a spread code generator PNG generating an inverse spread code p'(t) and a clock signal generator VCO supplying a clock signal fR for generating the spread code and the frequency at the initial synchronization locking of the clock signal generator is revised corresponding to the output of the integration device. Thus, the synchronization acquisition time is reduced while keeping the same performance against noise and disturbance as that of a conventional receiver.</p> |
