Receiving method of a receiver and the satellite positioning signal of the positioning satellite signals

摘要

PPROBLEM TO BE SOLVED: To more speedily and accurately search synchronism establishment regarding a positioning satellite signal. PSOLUTION: This receiver comprises a high-speed mode and a high-sensitivity mode. During the high-speed mode, a practical phase change width of a receiving-side spreading code is great when establishing synchronism for a spreading code of a received signal by detecting a correlation between the spreading code of the received signal from a satellite and the receiving-side spreading code while practically changing a phase of the receiving-side spreading code. During the high-sensitivity mode, the practical phase change width is small. A mode switching operation means is provided for accepting a switching selection operation of the high-speed mode and the high-sensitivity mode. A synchronism establishing means carries out the establishment of synchronism by setting a mode that has been switched by the mode switching operation means as a present mode. PCOPYRIGHT: (C)2007,JPO&INPIT