| 摘要 |
PROBLEM TO BE SOLVED: To identify targets and to specify the distance to and speed of the targets even under a low S/N environment. SOLUTION: Reflected waves from targets 11 are captured by an antenna 1 and received by a receiver 2. Received signals are converted into digital signals at an A/D converter 3 and signal-processed at a target detector 4 to determine temporary data of target tracks. The target detector 4 performs Fourier transform on signals converted into digital signals, captures them of the amount of a plurality of times, extracts tracks estimated as of targets by a method such as the Hough transform and a TBD algorithm, and takes them as target track temporary data. The target track temporary data is a distance data string and a speed data string for each observation and transmitted to a target determination processor 5. The target determination processor 5 determines tracks of targets on the basis of the target track temporary data obtained for each observation, and when a single target is determined, the tracks of targets are taken as track information of the target to obtain true target track data. COPYRIGHT: (C)2010,JPO&INPIT |
