GB1219410A - Radio navigation equipment - Google Patents

Radio navigation equipment

Info

Publication number
GB1219410A
GB1219410A GB2778167A GB2778167A GB1219410A GB 1219410 A GB1219410 A GB 1219410A GB 2778167 A GB2778167 A GB 2778167A GB 2778167 A GB2778167 A GB 2778167A GB 1219410 A GB1219410 A GB 1219410A
Authority
GB
United Kingdom
Prior art keywords
frequency
transponder
june
utilized
navigation equipment
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
GB2778167A
Inventor
Charles William Earp
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB2778167A priority Critical patent/GB1219410A/en
Publication of GB1219410A publication Critical patent/GB1219410A/en
Expired 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/50—Systems of measurement based on relative movement of target
    • G01S13/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
    • G01S13/583—Velocity or trajectory determination systems; Sense-of-movement determination systems using transmission of continuous unmodulated waves, amplitude-, frequency-, or phase-modulated waves and based upon the Doppler effect resulting from movement of targets
    • G01S13/584—Velocity or trajectory determination systems; Sense-of-movement determination systems using transmission of continuous unmodulated waves, amplitude-, frequency-, or phase-modulated waves and based upon the Doppler effect resulting from movement of targets adapted for simultaneous range and velocity measurements
    • 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/76—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
    • G01S13/78—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted discriminating between different kinds of targets, e.g. IFF-radar, i.e. identification of friend or foe
    • G01S13/785—Distance Measuring Equipment [DME] systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

1,219,410. Radar ; radio signalling. STANDARD TELEPHONES & CABLES Ltd. 12 June, 1968 [16 June, 1967], No. 27781/67. Headings H4D and H4L. In an F.M.C.W. secondary radar system a transponder (on another aircraft or on the ground) returns the incoming signal with a frequency-shifted carrier (Fig. 2, not shown), and the F.M. on the output of detector 5 is discriminated to give velocity and/or distance. The frequency-shift at the transponder may be height-coded (Fig. 3, not shown) and the system may be utilized for anti-collision. Timesharing may be adopted to facilitate multistation operation. To avoid synchronous modulation very low-frequency noise modulation may be added. Directional emission may be utilized. The F.M. may be sinusoidal or sawtooth.
GB2778167A 1967-06-16 1967-06-16 Radio navigation equipment Expired GB1219410A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2778167A GB1219410A (en) 1967-06-16 1967-06-16 Radio navigation equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2778167A GB1219410A (en) 1967-06-16 1967-06-16 Radio navigation equipment

Publications (1)

Publication Number Publication Date
GB1219410A true GB1219410A (en) 1971-01-13

Family

ID=10265196

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2778167A Expired GB1219410A (en) 1967-06-16 1967-06-16 Radio navigation equipment

Country Status (1)

Country Link
GB (1) GB1219410A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2243739A (en) * 1990-04-27 1991-11-06 Arrowaxe Ltd Frequency modulation distance measurement of active target
GB2264412A (en) * 1992-02-24 1993-08-25 Vaisala Oy Doppler velocity measurement
WO2010076037A1 (en) 2008-12-31 2010-07-08 Ids Ingegneria Dei Sistemi S.P.A. Method for interferometric radar measurements
EP2312334A1 (en) * 2009-10-14 2011-04-20 Nederlandse Organisatie voor toegepast -natuurwetenschappelijk onderzoek TNO Method for measuring the distance between tags
WO2011046436A1 (en) 2009-10-14 2011-04-21 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappeliijk Onderzoek Tno Fmcw distance measuring method and devices

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2243739A (en) * 1990-04-27 1991-11-06 Arrowaxe Ltd Frequency modulation distance measurement of active target
GB2264412A (en) * 1992-02-24 1993-08-25 Vaisala Oy Doppler velocity measurement
GB2264412B (en) * 1992-02-24 1995-07-05 Vaisala Oy Method and device for measurement of the velocity of a moving target by making use of the doppler shift of electromagnetic radiation
WO2010076037A1 (en) 2008-12-31 2010-07-08 Ids Ingegneria Dei Sistemi S.P.A. Method for interferometric radar measurements
EP2312334A1 (en) * 2009-10-14 2011-04-20 Nederlandse Organisatie voor toegepast -natuurwetenschappelijk onderzoek TNO Method for measuring the distance between tags
WO2011046436A1 (en) 2009-10-14 2011-04-21 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappeliijk Onderzoek Tno Fmcw distance measuring method and devices

Similar Documents

Publication Publication Date Title
GB1219410A (en) Radio navigation equipment
GB1278637A (en) Synchronized vortac/tacan cas system
GB1076926A (en) Improvements in road traffic signalling systems
FR1517523A (en) Vehicle presence detection system
WANG-PING The technical performance of non-pulse radar system/part I, and part II/(Negative, FM, and Doppler radar systems for detection and guidance)
FR1444267A (en) Communication satellite tracking system
Cooper et al. A comparison of monopulse techniques for direction finding in the presence of interference
GB1052926A (en)
GB1529381A (en) Aircraft detection
JAVID Confidence level of decision based on the output of correlators of a PFM system(Confidence level of decision based on output of correlators of pulse frequency modulation systems)
GB1276308A (en) Receiver for use with a direction finding or radar receiving system
ROZOV Noise rejection in a multichannel amplitude-modulated pilot system with constant group signal power
NATCHIPOLSKY et al. Terminal radar traffic control systems(Digital data processing, transfer and display equipment applied to ATC terminal operations, using surveillance radars and radar beacons)
GB1248221A (en) Collision warning apparatus
FR1496484A (en) Primary aerial system for antenna for single pulse amplitude modulated signals
GB1047797A (en) Improvements in or relating to telemetric ranging systems
FR1496233A (en) Underground transit system
TRONIN et al. Determination of the location of a moving object with the aid of navigation systems using information on the cruising speed of the object
NILSSEN Description of phase modulated radar systems which use the doppler effect to provide a carrier for range information
GB1315513A (en) Radio navigation system
FANTE Receiver noise due to R/V plasma sheath turbulence(Noise scattered into receiving antenna system by turbulent plasma)[Physical Science Research Papers]
CREED Radar applications of the laser(Laser applications in radar systems, relating target detection factors to carrier frequency)
GB1009237A (en) Improvements in or relating to systems for determining the positions of moving vehicles
GB1234542A (en)
WOODWARD Microwave landing system using continuously scanning beams(Microwave instrument landing systems based on continuous radar scanning technique, using pulse format for data transmission)