In-vehicle radar characterization method, probability model creation method and probability model used for this

摘要

PROBLEM TO BE SOLVED: To provide a highly versatile one which enables easy and quick characteristic evaluation of an in-vehicle radar and regardless of a difference in radar method. SOLUTION: A large number of detected raw waves β1 are generated between a virtual vehicle VB and a virtual antenna FA whose position is changed over a large number of places in a predetermined range P in consideration of multipath by the simulation shown in FIG. 2 in advance. , Β2, etc., and a large number of delay times, which are round-trip times, are acquired. A probability model (FIG. 4) showing the probability density is created for each of a large number of delay times. The delay time selected in the distribution range of the probability density in the probability model (for example, the lower limit value indicating the minimum delay time and the upper limit value indicating the maximum delay time) is selected. Substituting the selected delay time (for example, the above lower limit value and upper limit value) into the calculation formula for calculating the distance according to the delay time of the in-vehicle radar to be verified, the detection distance in the in-vehicle radar to be verified Is obtained. [Selection diagram] Fig. 4