GB1316956A - Lightweight radar - Google Patents

Lightweight radar

Info

Publication number
GB1316956A
GB1316956A GB1316956DA GB1316956A GB 1316956 A GB1316956 A GB 1316956A GB 1316956D A GB1316956D A GB 1316956DA GB 1316956 A GB1316956 A GB 1316956A
Authority
GB
United Kingdom
Prior art keywords
radar
sector
eyepiece
terrain
sept
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
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.)
EMI Ltd
Original Assignee
EMI 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 EMI Ltd filed Critical EMI Ltd
Publication of GB1316956A publication Critical patent/GB1316956A/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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/04—Display arrangements
    • G01S7/06—Cathode-ray tube displays or other two dimensional or three-dimensional displays
    • 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

Abstract

1316956 Radar EMI Ltd 9 Sept 1970 [11 Sept 1969] 44804/69 Heading H4D A hand held electronically scanned (frequency swept) pulsed radar Fig. 1(a) is described, the CRT sector PPI display 18 Fig. 2(b) being viewed through eyepiece 3 of the radar with the actual sector of terrain Fig. 2(a) being scanned, being viewed through eyepiece 2. The aerial housed in lateral extension 5 is etched on a stripline line sheet to give a stripline array 14" x 14". A Gunn effect diode is used as the transmitter and transmits pulses at 10 Kpps having their carrier frequency swept at 50 c/s to cause the aerial to transmit and receive in a 50 c/s scanning beam, sweeping out a Π30 degrees, 60 degrees wide sector. The persistance of the CRT is so short (20 ms. decay time) that the user can manually sweep the entire radar over the terrain without giving blurred (tailed) images. The radar can be swivel mounted on a tripod.
GB1316956D 1969-09-11 1969-09-11 Lightweight radar Expired GB1316956A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4480469 1969-09-11

Publications (1)

Publication Number Publication Date
GB1316956A true GB1316956A (en) 1973-05-16

Family

ID=10434828

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1316956D Expired GB1316956A (en) 1969-09-11 1969-09-11 Lightweight radar

Country Status (1)

Country Link
GB (1) GB1316956A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7973704B2 (en) 2005-11-22 2011-07-05 Navman New Zealand Handheld radar

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7973704B2 (en) 2005-11-22 2011-07-05 Navman New Zealand Handheld radar

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Legal Events

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