| 摘要 |
<p>An object is to provide an in-vehicle receiving apparatus capable of performing highly accurate position estimation, regardless of a transmitting situation of an on-road device and a receiving situation of the in-vehicle receiving apparatus. An in-vehicle receiving apparatus 20 to receive transmitted data from an on-road device 10 is provided with a reference position setting device to set a position satisfying a predetermined reception condition, as a reference position; a real receiving situation acquiring device to acquire a receiving situation of the transmitted data in a zone from the reference position set by the reference position setting device, to a predetermined position; a designed receiving situation estimating device to estimate a receiving situation of the transmitted data in a zone from a design position to the predetermined position when the predetermined reception condition is satisfied at the design position; and an error calculating device to calculate a distance error of the reference position from the design position, based on the receiving situation acquired by the real receiving situation acquiring device and the receiving situation estimated by the designed receiving situation estimating device.</p> |
