CA1322037C - Airborne receiver in microwave landing system with channel selection means by manual input of familiar abbreviations of airports - Google Patents

Airborne receiver in microwave landing system with channel selection means by manual input of familiar abbreviations of airports

Info

Publication number
CA1322037C
CA1322037C CA000579625A CA579625A CA1322037C CA 1322037 C CA1322037 C CA 1322037C CA 000579625 A CA000579625 A CA 000579625A CA 579625 A CA579625 A CA 579625A CA 1322037 C CA1322037 C CA 1322037C
Authority
CA
Canada
Prior art keywords
mls
signal
frequency
channel
channel selection
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 - Fee Related
Application number
CA000579625A
Other languages
English (en)
French (fr)
Inventor
Hiroyuki Kida
Chogo Sekine
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.)
Japan Radio Co Ltd
Original Assignee
Japan Radio 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 Japan Radio Co Ltd filed Critical Japan Radio Co Ltd
Application granted granted Critical
Publication of CA1322037C publication Critical patent/CA1322037C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/02—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
    • H03J5/0245—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form
    • H03J5/0272—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer
    • H03J5/0281—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer the digital values being held in an auxiliary non erasable memory
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Circuits Of Receivers In General (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Traffic Control Systems (AREA)
CA000579625A 1987-10-09 1988-10-07 Airborne receiver in microwave landing system with channel selection means by manual input of familiar abbreviations of airports Expired - Fee Related CA1322037C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP255,736/1987 1987-10-09
JP25573687A JPH0198100A (ja) 1987-10-09 1987-10-09 Ｍｌｓ受信機

Publications (1)

Publication Number Publication Date
CA1322037C true CA1322037C (en) 1993-09-07

Family

ID=17282917

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000579625A Expired - Fee Related CA1322037C (en) 1987-10-09 1988-10-07 Airborne receiver in microwave landing system with channel selection means by manual input of familiar abbreviations of airports

Country Status (4)

Country Link
JP (1) JPH0198100A (ja)
CA (1) CA1322037C (ja)
FR (1) FR2621703B1 (ja)
GB (1) GB2211041B (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7609204B2 (en) 2005-08-30 2009-10-27 Honeywell International Inc. System and method for dynamically estimating output variances for carrier-smoothing filters
WO2019061442A1 (zh) * 2017-09-30 2019-04-04 深圳市大疆创新科技有限公司 飞行器安全保护方法、设备、飞行器及无人机***

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE322277B (ja) * 1968-03-07 1970-04-06 Aga Ab
IT1047373B (it) * 1975-10-16 1980-09-10 Indesit Disposizione per selezionare una frequenza ricevibile in un ricevitore di segnali
US4122395A (en) * 1976-05-10 1978-10-24 Draco Laboratories, Inc. Radio control circuit with microprocessor
GB2064905B (en) * 1979-11-30 1983-10-05 Smiths Industries Ltd Radio receiver tuning
US4371978A (en) * 1979-12-14 1983-02-01 Jet Electronics And Technology Incorporated Automatic tuning system
FR2481549A1 (fr) * 1980-04-25 1981-10-30 Thomson Brandt Dispositif de synthese et de demodulation combinees pour recepteurs d'ondes modulees en frequence et recepteur le comportant
DE3419340A1 (de) * 1984-05-24 1985-11-28 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Funkgeraet fuer eine vielzahl von kanaelen
DE3642365A1 (de) * 1986-12-11 1988-06-16 Grundig Emv Einrichtung zur programmierung von empfangsgeraeten

Also Published As

Publication number Publication date
FR2621703B1 (fr) 1991-10-04
JPH0198100A (ja) 1989-04-17
GB8823662D0 (en) 1988-11-16
GB2211041B (en) 1992-01-29
GB2211041A (en) 1989-06-21
FR2621703A1 (fr) 1989-04-14

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Legal Events

Date Code Title Description
MKLA Lapsed