| 摘要 |
<p>In a conventional signal processing method, a radar device may be difficult to determine a pair of up and down frequencies. The radar device of the present invention is characterized in that: it transmits an electric wave and receives reflected waves reflected by a plurality of objects to generate a received signal, so as to detect a plurality of up frequency peaks and a plurality of down frequency peaks from the received signal and measure characteristic values with regard to the objects at the up frequency peaks and the down frequency peaks; and the radar device pairs (S101) each of the plurality of up frequency peaks with the down frequency peaks one by one and, with respect to each pair, based on the measured characteristic values, calculates (S102) a Mahalanobis distance to determine the pairs whose Mahalanobis distance is smaller than or equal to a predetermined threshold as pairing candidates and, based on the up and down frequency peaks of the determined pairing candidates, calculates current data values that include at least one of a distance, relative velocity and angle of the objects.</p> |
