| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a receiver for spread spectrum capable of suppressing sensitivity reduction that partially occurs due to a residual frequency deviation, without expanding circuit scale. <P>SOLUTION: The receiver for spread spectrum is a receiver for spread spectrum that implements despreading operation while correcting the frequency deviation of a received signal, the receiver for spread spectrum is equipped with an initial code synchronism acquisition section 3 which performs initial synchronism acquisition by means of a frequency sweep in a frequency domain and a code synchronism and carrier synchronism tracking section 4 for tracking the captured synchronism by means of a frequency sweep in a time domain, and is characterized in that the frequency deviation of the received signal is corrected based on a frequency deviation estimate obtained by the initial captured synchronism and the synchronism tracking. <P>COPYRIGHT: (C)2008,JPO&INPIT |
