JPS564928A - Pulse repetitive frequency discrimination system - Google Patents

Pulse repetitive frequency discrimination system

Info

Publication number
JPS564928A
JPS564928A JP8021579A JP8021579A JPS564928A JP S564928 A JPS564928 A JP S564928A JP 8021579 A JP8021579 A JP 8021579A JP 8021579 A JP8021579 A JP 8021579A JP S564928 A JPS564928 A JP S564928A
Authority
JP
Japan
Prior art keywords
circuit
pulse
pulses
string
interval
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.)
Granted
Application number
JP8021579A
Other languages
Japanese (ja)
Other versions
JPS6248931B2 (en
Inventor
Yutaka Nakamura
Toshihiro Okiyama
Koichi Yu
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.)
Technical Research and Development Institute of Japan Defence Agency
Original Assignee
Technical Research and Development Institute of Japan Defence Agency
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 Technical Research and Development Institute of Japan Defence Agency filed Critical Technical Research and Development Institute of Japan Defence Agency
Priority to JP8021579A priority Critical patent/JPS564928A/en
Publication of JPS564928A publication Critical patent/JPS564928A/en
Publication of JPS6248931B2 publication Critical patent/JPS6248931B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/19—Monitoring patterns of pulse trains

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Manipulation Of Pulses (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

PURPOSE:To detect and separate a string of constant-period pulses from a string of mixed pulses by considering a time interval between two pulses, belonging to mixed pulses, to be a divisor and by performing processing by dividing times from one end pulse to respective pulses by it in sequence. CONSTITUTION:A mixed pulse string from terminal 1 is applied via pulse-interval integrating circuit 2 to memory circuit 3 and time intervals from the 1st pulse of the pulse string to respective pulses are stored. Among data from circuit 3, the maximum pulse interval is detected 4 and sent to divisor selecting circuit 5. Circuit 5 selects and sends this to dividing circuit 6, which divides by this interval the time intervals up to respective pulses read out from circuit 3, and from the results, a divisibility frequency is detected 7 and sent to divisibility frequency deciding circuit 8 and dividing circuit 6. Once circuit 8 decides that the divisibility frequency does not reach a fixed number, circuit 5 selects a new divisor to repeat the division and when the divisibility reaches the fixed number, a pulse interval selected at that time as the divisor is output as a repetitive frequency, so that circuit 6 removes the pulse string from circuit 3.
JP8021579A 1979-06-27 1979-06-27 Pulse repetitive frequency discrimination system Granted JPS564928A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8021579A JPS564928A (en) 1979-06-27 1979-06-27 Pulse repetitive frequency discrimination system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8021579A JPS564928A (en) 1979-06-27 1979-06-27 Pulse repetitive frequency discrimination system

Publications (2)

Publication Number Publication Date
JPS564928A true JPS564928A (en) 1981-01-19
JPS6248931B2 JPS6248931B2 (en) 1987-10-16

Family

ID=13712153

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8021579A Granted JPS564928A (en) 1979-06-27 1979-06-27 Pulse repetitive frequency discrimination system

Country Status (1)

Country Link
JP (1) JPS564928A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010094725A (en) * 2008-10-20 2010-04-30 Shoda Seisakusho:Kk Hole punching mold

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0378714U (en) * 1989-08-10 1991-08-09

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010094725A (en) * 2008-10-20 2010-04-30 Shoda Seisakusho:Kk Hole punching mold

Also Published As

Publication number Publication date
JPS6248931B2 (en) 1987-10-16

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