JPS552938A - Automatic pulse signal searcher - Google Patents

Automatic pulse signal searcher

Info

Publication number
JPS552938A
JPS552938A JP7574878A JP7574878A JPS552938A JP S552938 A JPS552938 A JP S552938A JP 7574878 A JP7574878 A JP 7574878A JP 7574878 A JP7574878 A JP 7574878A JP S552938 A JPS552938 A JP S552938A
Authority
JP
Japan
Prior art keywords
speed search
control circuit
signal
pulse signal
high speed
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
JP7574878A
Other languages
Japanese (ja)
Inventor
Haruo Kitamura
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP7574878A priority Critical patent/JPS552938A/en
Publication of JPS552938A publication Critical patent/JPS552938A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
    • G01S1/08—Systems for determining direction or position line
    • G01S1/20—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems
    • G01S1/24—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems the synchronised signals being pulses or equivalent modulations on carrier waves and the transit times being compared by measuring the difference in arrival time of a significant part of the modulations, e.g. LORAN systems
    • G01S1/245—Details of receivers cooperating therewith, e.g. determining positive zero crossing of third cycle in LORAN-C

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

PURPOSE:For searching for pulse signal in a short period of time, to make change- over setting to low speed search position after detecting, in high speed search for increased quantity of samplings, that pulse signal is within a narrow range. CONSTITUTION:High speed search is performed with signal E generated by a control circuit 28 and with continuous sampling pulses generated by a sampling pulse generating circuit 22 correspondingly to one trigger pulse input on the start thereof. When second condition signal is generated by a deciding circuit 7 during the operation of a high speed search control circuit, said control circuit 28 generates signal D for making connection of a low-speed search control circuit.
JP7574878A 1978-06-21 1978-06-21 Automatic pulse signal searcher Pending JPS552938A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7574878A JPS552938A (en) 1978-06-21 1978-06-21 Automatic pulse signal searcher

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7574878A JPS552938A (en) 1978-06-21 1978-06-21 Automatic pulse signal searcher

Publications (1)

Publication Number Publication Date
JPS552938A true JPS552938A (en) 1980-01-10

Family

ID=13585189

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7574878A Pending JPS552938A (en) 1978-06-21 1978-06-21 Automatic pulse signal searcher

Country Status (1)

Country Link
JP (1) JPS552938A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4633260A (en) * 1983-10-07 1986-12-30 Nissan Motor Company, Limited Loran-C signal receiving apparatus
US4670759A (en) * 1983-04-26 1987-06-02 Nissan Motor Company, Ltd. Automatic Loran-C signal detecting apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4670759A (en) * 1983-04-26 1987-06-02 Nissan Motor Company, Ltd. Automatic Loran-C signal detecting apparatus
US4633260A (en) * 1983-10-07 1986-12-30 Nissan Motor Company, Limited Loran-C signal receiving apparatus

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