JPS641989A - Radar signal processor - Google Patents

Radar signal processor

Info

Publication number
JPS641989A
JPS641989A JP62156980A JP15698087A JPS641989A JP S641989 A JPS641989 A JP S641989A JP 62156980 A JP62156980 A JP 62156980A JP 15698087 A JP15698087 A JP 15698087A JP S641989 A JPS641989 A JP S641989A
Authority
JP
Japan
Prior art keywords
threshold value
radar
area
signal
clutter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP62156980A
Other languages
Japanese (ja)
Other versions
JPH011989A (en
Inventor
Masami Mochii
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Priority to JP62-156980A priority Critical patent/JPH011989A/en
Priority claimed from JP62-156980A external-priority patent/JPH011989A/en
Publication of JPS641989A publication Critical patent/JPS641989A/en
Publication of JPH011989A publication Critical patent/JPH011989A/en
Pending legal-status Critical Current

Links

Landscapes

  • Radar Systems Or Details Thereof (AREA)

Abstract

PURPOSE: To enable the execution of a threshold value control corresponding to the environmental conditions of a radar signal with a small storage capacity, by dividing the unit of a small area into two kinds in an apparatus wherein a threshold value is controlled for each unit of the small area and a target is detected under the control.
CONSTITUTION: Based on the amplitude value of an input radar signal 5 and a radar target signal 7, a threshold value determination circuit 1 determines and sets the threshold value for a subsequent radar rotation period for each unit of a small area. As to a unit size in a range and bearing of this small area, either one of two kinds of sizes is set on the basis of a clutter index 8 determined by a clutter area determination circuit 2, so that it is small inside a clutter area and large outside the area. A clutter index 9 which is another output of the determination circuit 2 is combined with the threshold value, an output of the threshold value determination circuit 1, and stored into a threshold value storage circuit 3. The threshold value 6 in the storage circuit 3 is read out in the subsequent radar rotation period. An amplitude comparator circuit 4 compares this threshold value 6 held at a certain level with the amplitude data of the radar signal 5, and when the signal 5 is larger than the threshold value 6, it outputs the radar target signal 7 corresponding to the given position.
COPYRIGHT: (C)1989,JPO&Japio
JP62-156980A 1987-06-23 Radar signal processing device Pending JPH011989A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62-156980A JPH011989A (en) 1987-06-23 Radar signal processing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62-156980A JPH011989A (en) 1987-06-23 Radar signal processing device

Publications (2)

Publication Number Publication Date
JPS641989A true JPS641989A (en) 1989-01-06
JPH011989A JPH011989A (en) 1989-01-06

Family

ID=

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0392783A (en) * 1989-09-05 1991-04-17 Nec Corp Radar signal processor
JP2009075093A (en) * 2007-08-31 2009-04-09 Furuno Electric Co Ltd Radar equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0392783A (en) * 1989-09-05 1991-04-17 Nec Corp Radar signal processor
JP2009075093A (en) * 2007-08-31 2009-04-09 Furuno Electric Co Ltd Radar equipment

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