JPS578466A - Loran coulomb radio navigation receiving equipment - Google Patents

Loran coulomb radio navigation receiving equipment

Info

Publication number
JPS578466A
JPS578466A JP8284480A JP8284480A JPS578466A JP S578466 A JPS578466 A JP S578466A JP 8284480 A JP8284480 A JP 8284480A JP 8284480 A JP8284480 A JP 8284480A JP S578466 A JPS578466 A JP S578466A
Authority
JP
Japan
Prior art keywords
turned
power source
electric power
information
volatile memory
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
JP8284480A
Other languages
Japanese (ja)
Other versions
JPS6243504B2 (en
Inventor
Teruhisa Fujino
Sadatoshi Narasaki
Fujio Oosawa
Kenichi Chiwaki
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.)
Koden Electronics Co Ltd
Original Assignee
Koden Electronics Co Ltd
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 Koden Electronics Co Ltd filed Critical Koden Electronics Co Ltd
Priority to JP8284480A priority Critical patent/JPS578466A/en
Publication of JPS578466A publication Critical patent/JPS578466A/en
Publication of JPS6243504B2 publication Critical patent/JPS6243504B2/ja
Granted 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:To shorten a measuring time when a electric power source is turned on again, by storing the information of receiving operation until a main electric power source is turned off in a non-volatile memory part, and using this information when the electric power source switch is turned on again. CONSTITUTION:An input radio signal of a receiving antenna 1 is amplified and shaped by a receiving part 2, and is inputted to a control part 30. The control part 30 catches a leading edge time of a pulse of each group of main station signals, and generates a control pulse. An output signal of the control part is sent to a display part 40 and a non-volatile memory part 7 simultaneously, and it is always rewritten to the latest numerical information, and is accumulated. When an electric power source switch is turned off and turned on again, the control part 30 decides only about a signal of one main station 1, tracks a control pulse, and a tracking point of a signal of other station is calculated and set by use of the time difference information between a main station and a slave station, which is stored in the non- volatile memory part 7.
JP8284480A 1980-06-20 1980-06-20 Loran coulomb radio navigation receiving equipment Granted JPS578466A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8284480A JPS578466A (en) 1980-06-20 1980-06-20 Loran coulomb radio navigation receiving equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8284480A JPS578466A (en) 1980-06-20 1980-06-20 Loran coulomb radio navigation receiving equipment

Publications (2)

Publication Number Publication Date
JPS578466A true JPS578466A (en) 1982-01-16
JPS6243504B2 JPS6243504B2 (en) 1987-09-14

Family

ID=13785692

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8284480A Granted JPS578466A (en) 1980-06-20 1980-06-20 Loran coulomb radio navigation receiving equipment

Country Status (1)

Country Link
JP (1) JPS578466A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57192881A (en) * 1981-05-23 1982-11-27 Furuno Electric Co Ltd Acquiring method for loran signal
JPS57192880A (en) * 1981-05-23 1982-11-27 Furuno Electric Co Ltd Acquiring method for loran signal
JPS58200176A (en) * 1982-05-17 1983-11-21 Furuno Electric Co Ltd Tracking device for loran signal

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57192881A (en) * 1981-05-23 1982-11-27 Furuno Electric Co Ltd Acquiring method for loran signal
JPS57192880A (en) * 1981-05-23 1982-11-27 Furuno Electric Co Ltd Acquiring method for loran signal
JPS6322274B2 (en) * 1981-05-23 1988-05-11 Furuno Electric Co
JPH0113545B2 (en) * 1981-05-23 1989-03-07 Furuno Electric Co
JPS58200176A (en) * 1982-05-17 1983-11-21 Furuno Electric Co Ltd Tracking device for loran signal

Also Published As

Publication number Publication date
JPS6243504B2 (en) 1987-09-14

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