| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an FM-CW radar system capable of detecting a moving target signal even under the environment where an unwanted signal is present within the same distance. <P>SOLUTION: An FM-CW radar system includes: a normalization processor (20) which performs normalization processing in a time direction for each identical beat frequency on a spectrum obtained at a fixed time interval from a signal obtained by mixing a continuous wave signal and a reflection signal; a line segment detector (21) which performs line segment detection on a two-dimensional plane of a time-to-beat frequency obtained in the normalization processor; a frequency estimator (22) which estimates the beat frequency at a predetermined time from a line segment detected by the line segment detector; and a distance/speed detector (23) which computes target distance and speed from the beat frequency obtained by the frequency estimator. <P>COPYRIGHT: (C)2013,JPO&INPIT |
