GB978742A - A new or improved apparatus for furnishing information as to position of objects - Google Patents

A new or improved apparatus for furnishing information as to position of objects

Info

Publication number
GB978742A
GB978742A GB3648064A GB3648064A GB978742A GB 978742 A GB978742 A GB 978742A GB 3648064 A GB3648064 A GB 3648064A GB 3648064 A GB3648064 A GB 3648064A GB 978742 A GB978742 A GB 978742A
Authority
GB
United Kingdom
Prior art keywords
display
frequencies
cathode
sum
ray tube
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
GB3648064A
Inventor
Leslie Kay
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB3648064A priority Critical patent/GB978742A/en
Publication of GB978742A publication Critical patent/GB978742A/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
    • G01S13/06—Systems determining position data of a target
    • G01S13/42—Simultaneous measurement of distance and other co-ordinates
    • 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
    • G01S13/06—Systems determining position data of a target
    • G01S13/08—Systems for measuring distance only
    • G01S13/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

978,742. Direction-finding and echo ranging by radio and sound waves. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Feb. 27, 1961 [Nov. 27, 1959], No. 36480/64. Divided out of 978,741. Heading H4D. The disclosure is that of Specification 978,741 together with the alternative use of radio waves and with an alternative indication of echo range and bearing by cathode-ray tube; the claims are directed to the direction-finding aspect. The beat frequency audio signals corresponding to the two spaced receivers are applied to a modulator 38 affording sum- and difference-frequencies; unit 39 incorporates a bank of filters covering the sum-frequency band and a cathode-ray tube having a time base synchronized with the sampling of the filters to afford a range display. Unit 40 is similarly arranged for the difference-frequencies and affords a bearing display. A single, type B, display may be arranged.
GB3648064A 1959-11-27 1959-11-27 A new or improved apparatus for furnishing information as to position of objects Expired GB978742A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3648064A GB978742A (en) 1959-11-27 1959-11-27 A new or improved apparatus for furnishing information as to position of objects

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3648064A GB978742A (en) 1959-11-27 1959-11-27 A new or improved apparatus for furnishing information as to position of objects

Publications (1)

Publication Number Publication Date
GB978742A true GB978742A (en) 1964-12-23

Family

ID=10388545

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3648064A Expired GB978742A (en) 1959-11-27 1959-11-27 A new or improved apparatus for furnishing information as to position of objects

Country Status (1)

Country Link
GB (1) GB978742A (en)

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