SIGNAL ACQUISITION METHOD, SIGNAL ACQUISITION APPARATUS AND ELECTRONIC DEVICE

PROBLEM TO BE SOLVED: To provide a new technique capable of performing a correlation processing over a correlation integration time longer than a bit length of the navigation message data.SOLUTION: A first carrier removal signal generated by a first carrier removal signal generator 221 is multiplied by a receiving signal in a first multiplier 211, and thus, the frequency of the receiving signal is converted into a specific frequency. Further, a second carrier removal signal generated by a second carrier removal signal generator 222 is multiplied by the receiving signal in a second multiplier 212, and thus, the frequency of the receiving signal is converted into a zero frequency. Further, a correlation operation for the signal of the specific frequency is performed in a first correlator 231 to calculate a first correlation value, and the correlation operation for the signal of the zero frequency is performed in a second correlator 232 to calculate a second correlation value. Then, the integration results of the first correlation value and the integration result of the second correlation value are combined, and the GPS satellite signal is acquired using the combined integration correlation value.