| 摘要 |
<p>PROBLEM TO BE SOLVED: To eliminate a false speed target by finding the speed of the detected target by a range gate circuit for a far distance, calculating a time when the target arrives at a distance corresponding to a range gate circuit for a near distance and performing correlation processing by target information stored therebetween and the target information from the range gate circuit for the near distance. SOLUTION: At first, a signal from a target is input to a range gate circuit for a far distance 6-1. The speed of the target is calculated by a speed detection part 8. Obtained speed information and arrival estimation time information obtained by an arrival time calculation part 15 are stored as target information to a memory circuit 10 together with the distance information of the range gate circuit 6-1. The target information is input to a correlative processing part 13. The target information from a range gate circuit for a near distance 6-2 is input to the correlative processing part 13 every time, correlation processing is performed on whether the target exists in the range gate circuit 6-2 for the estimation time arriving at a distance corresponding to the range gate 6-2 on the basis of the target detected by the range gate circuit 6-1, and a false speed target is eliminated.</p> |
