JPS6317366B2 - - Google Patents

Info

Publication number
JPS6317366B2
JPS6317366B2 JP5065082A JP5065082A JPS6317366B2 JP S6317366 B2 JPS6317366 B2 JP S6317366B2 JP 5065082 A JP5065082 A JP 5065082A JP 5065082 A JP5065082 A JP 5065082A JP S6317366 B2 JPS6317366 B2 JP S6317366B2
Authority
JP
Japan
Prior art keywords
output
level
signal
frequency
narrowband
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.)
Expired
Application number
JP5065082A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58168335A (ja
Inventor
Teruhisa Fujino
Kenichi Chiwaki
Sadatoshi Narasaki
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 JP5065082A priority Critical patent/JPS58168335A/ja
Priority to CA000423623A priority patent/CA1188760A/en
Priority to NO830937A priority patent/NO157560C/no
Priority to DK122883A priority patent/DK122883A/da
Priority to US06/477,548 priority patent/US4584580A/en
Publication of JPS58168335A publication Critical patent/JPS58168335A/ja
Publication of JPS6317366B2 publication Critical patent/JPS6317366B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
    • H04B1/1036—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal with automatic suppression of narrow band noise or interference, e.g. by using tuneable notch filters
    • 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
    • G01S1/04—Details
    • G01S1/045—Receivers
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
    • H04B2001/1063—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal using a notch filter

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Signal Processing (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Noise Elimination (AREA)
JP5065082A 1982-03-29 1982-03-29 妨害波除去装置 Granted JPS58168335A (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP5065082A JPS58168335A (ja) 1982-03-29 1982-03-29 妨害波除去装置
CA000423623A CA1188760A (en) 1982-03-29 1983-03-15 Apparatus for rejecting jamming waves
NO830937A NO157560C (no) 1982-03-29 1983-03-16 Innretning for avvisning av forstyrrende boelger.
DK122883A DK122883A (da) 1982-03-29 1983-03-17 Apparat til at afvise en stoejboelge
US06/477,548 US4584580A (en) 1982-03-29 1983-03-21 Apparatus for rejecting jamming waves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5065082A JPS58168335A (ja) 1982-03-29 1982-03-29 妨害波除去装置

Publications (2)

Publication Number Publication Date
JPS58168335A JPS58168335A (ja) 1983-10-04
JPS6317366B2 true JPS6317366B2 (enEXAMPLES) 1988-04-13

Family

ID=12864809

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5065082A Granted JPS58168335A (ja) 1982-03-29 1982-03-29 妨害波除去装置

Country Status (1)

Country Link
JP (1) JPS58168335A (enEXAMPLES)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0750867B2 (ja) * 1984-10-29 1995-05-31 日本放送協会 妨害波除去受信装置

Also Published As

Publication number Publication date
JPS58168335A (ja) 1983-10-04

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