Abstract: This positioning device comprises a delay correction amount setting unit and a pseudo-distance calculation unit. The delay correction amount setting unit sets a delay correction amount for an amount of delay from an antenna to a positioning device that occurs in a positioning signal being tracked. The pseudo-distance calculation unit calculates a pseudo-distance using a tracking result and the delay correction amount.

Abstract: A navigation message acquiring unit acquires bit data per word from a received bit data row. Here, if continuous words constituting one subframe is failed to be acquired in one frame, only a word that is accurately decoded is stored. Here, final two bits in a word immediately prior to the accurately decoded word is also stored along with the accurately decoded word. If all of the words constituting the one subframe are successfully acquired in a plurality of frames, a phase match between the words is performed by using the final two bits in the word stored along with each of the words and immediately prior to the accurately decoded word, a supplemented subframe is formed by joining each of the phased matched words, and the navigation message acquiring unit outputs the supplemented subframe with time-of-week information.