| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a satellite signal receiving device improved in detection processing efficiency of preamble. <P>SOLUTION: A demodulation part detects a head position of each secondary code based on synchronization of navigation data with an E1-C signal containing each secondary code, detects a head position of a preamble disposed at the head of the navigation data from the top position of each secondary code, and demodulates the navigation data from the detected top position of the preamble. In this case, since the head position of each secondary code is a candidate of the head position of the preamble, the head position of the preamble is detected in a further short period of time by searching only a position of the navigation data corresponding to the head position of each secondary code. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
