| 摘要 |
<p>A vehicle-mounted receiver apparatus that allows a precise positional orientation to be performed independently of the transmission status of a road-side apparatus and the reception status of the vehicle-mounted receiver apparatus. A vehicle-mounted receiver apparatus (20), which receives data transmitted from a road-side apparatus (10), comprises a reference position establishing means that establishes, as a reference position, a position satisfying predetermined reception conditions; a real reception status acquiring means that acquires the reception status of transmitted data in a section extending from the reference position established by the reference position establishing means to a predetermined position; a designed reception status estimating means that estimates a reception status of the transmitted data in a section extending from a designed position to the predetermined position in a case of satisfaction of the predetermined reception conditions at the designed position; and a deviation calculating means that calculates a distance deviation of the reference position from the designed position based on the reception status acquired by the real reception status acquiring means and based on the reception status estimated by the designed reception status estimating means.</p> |
