GB1233384A - - Google Patents

Info

Publication number
GB1233384A
GB1233384A GB1233384DA GB1233384A GB 1233384 A GB1233384 A GB 1233384A GB 1233384D A GB1233384D A GB 1233384DA GB 1233384 A GB1233384 A GB 1233384A
Authority
GB
United Kingdom
Prior art keywords
transmitter
beams
edge
pulse
photo
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
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 filed Critical
Publication of GB1233384A publication Critical patent/GB1233384A/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
    • 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
    • G01S1/44—Rotating or oscillating beam beacons defining directions in the plane of rotation or oscillation
    • G01S1/54—Narrow-beam systems producing at a receiver a pulse-type envelope signal of the carrier wave of the beam, the timing of which is dependent upon the angle between the direction of the receiver from the beacon and a reference direction from the beacon; Overlapping broad beam systems defining a narrow zone and producing at a receiver a pulse-type envelope signal of the carrier wave of the beam, the timing of which is dependent upon the angle between the direction of the receiver from the beacon and a reference direction from the beacon
    • 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
    • G01S1/44—Rotating or oscillating beam beacons defining directions in the plane of rotation or oscillation
    • G01S1/54—Narrow-beam systems producing at a receiver a pulse-type envelope signal of the carrier wave of the beam, the timing of which is dependent upon the angle between the direction of the receiver from the beacon and a reference direction from the beacon; Overlapping broad beam systems defining a narrow zone and producing at a receiver a pulse-type envelope signal of the carrier wave of the beam, the timing of which is dependent upon the angle between the direction of the receiver from the beacon and a reference direction from the beacon
    • G01S1/56—Timing the pulse-type envelope signals derived by reception of the beam
    • 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
    • G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
    • G01S11/02—Systems for determining distance or velocity not using reflection or reradiation using radio waves
    • 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
    • G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
    • G01S11/02—Systems for determining distance or velocity not using reflection or reradiation using radio waves
    • G01S11/04—Systems for determining distance or velocity not using reflection or reradiation using radio waves using angle measurements

Landscapes

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

Abstract

1,233,384. Electromagnetic wave position finding. J. M. LAPEYRE. 11 June, 1968, No. 27749/68. Heading H4D. The distance R of a transmitter 20, Fig. 1, from a receiver 44 is determined by measuring the time interval t, Fig. 2, A, between reception of the parallel edges (separation d) of electromagnetic beams 26, 28, the beams being rotated together at constant angular velocity a; distance R equals d/ta. Transmitter.-A maser 24 affording continuous or pulse waves is utilized, the wavelength being in the range from microwaves to ultraviolet. In the embodiment a beam splitter 32 (which may be a knife-edge prism and two adjustable plane mirrors) provides the beams 26, 28; a turn-table 35 affords continuous beam rotation. A transmitter 37 produces an omnidirectional pulsed radiation on preferably a different wavelength when edge 34 coincides with a reference direction 38 (e.g. controlled by a photo-cell) for azimuth determination. Receiver.-The output of photo-multiplier 46, Fig. 2, A, is shaped, Fig. 2, B; the outputs of units 50, 52, 54 and 56 are shown on Fig. 2, C, D, E, F and G. AND gate 58 output, Fig. 2, H, is substantially of duration t and pulses from clock 62 are counted during that period. The counter is re-set by a pulse, Fig. 2, J, from unit 65. Azimuth determination utilizes the measurement, by counter 74, of the interval between the receipt of a pulse from transmitter 37 and the edge 34 of beam 28; waveform, Fig. 2, G, from bi-stable 56 is fed via differentiator and separator 76 as one input to bi-stable 68. Devices 64, 74 may be five-decade decimal counters with gas-filled tubes for display.
GB1233384D 1968-06-19 1968-06-11 Expired GB1233384A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR155560 1968-06-19

Publications (1)

Publication Number Publication Date
GB1233384A true GB1233384A (en) 1971-05-26

Family

ID=8651336

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1233384D Expired GB1233384A (en) 1968-06-19 1968-06-11

Country Status (6)

Country Link
AU (1) AU3909468A (en)
BE (1) BE717047A (en)
CH (1) CH489022A (en)
DE (1) DE1766585A1 (en)
FR (1) FR1572670A (en)
GB (1) GB1233384A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003058272A1 (en) * 2002-01-10 2003-07-17 Siemens Aktiengesellschaft Method for determining a position with the aid of a radio signal having a rotating transmission characteristic

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA975157A (en) * 1972-03-17 1975-09-30 Her Majesty The Queen In Right Of Canada As Represented By The Minister Of National Defence Of Her Majesty's Canadian Government Gun alignment and control system
DE58907638D1 (en) * 1988-09-23 1994-06-16 Contraves Ag Process and sighting device for rough alignment of fire control and weapon systems.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003058272A1 (en) * 2002-01-10 2003-07-17 Siemens Aktiengesellschaft Method for determining a position with the aid of a radio signal having a rotating transmission characteristic
US7053829B2 (en) 2002-01-10 2006-05-30 Siemens Aktiengesellschaft Method for determining a position with the aid of a radio signal having a rotating transmission characteristic

Also Published As

Publication number Publication date
DE1766585A1 (en) 1971-07-29
FR1572670A (en) 1969-06-27
AU3909468A (en) 1969-12-18
CH489022A (en) 1970-04-15
BE717047A (en) 1968-12-02

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees