Title:
TARGET DETECTOR
Document Type and Number:
Japanese Patent JP3229236
Kind Code:
B2
Abstract:
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.
Inventors:
Hiroshi Kazama
Masaki Yasufuku
Masaki Yasufuku
Application Number:
JP3671097A
Publication Date:
November 19, 2001
Filing Date:
February 20, 1997
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
G01S7/292; G01S13/18; (IPC1-7): G01S13/18; G01S7/292
Domestic Patent References:
| JP6264971A | ||||
| JP57149978A | ||||
| JP59180473A | ||||
| JP60195474A | ||||
| JP5888175U | ||||
| JP271287U |
Attorney, Agent or Firm:
Shoji Mizoi (2 outside)