CA2191763A1 - Radar apparatus with sidelobe blanking circuit - Google Patents

Radar apparatus with sidelobe blanking circuit

Info

Publication number
CA2191763A1
CA2191763A1 CA002191763A CA2191763A CA2191763A1 CA 2191763 A1 CA2191763 A1 CA 2191763A1 CA 002191763 A CA002191763 A CA 002191763A CA 2191763 A CA2191763 A CA 2191763A CA 2191763 A1 CA2191763 A1 CA 2191763A1
Authority
CA
Canada
Prior art keywords
receiver
radar apparatus
blanking circuit
differential
antenna
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.)
Granted
Application number
CA002191763A
Other languages
French (fr)
Other versions
CA2191763C (en
Inventor
Ian Gerald Whiting
John Arthur Scholz
Hugo Kleijer
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.)
Thales Nederland BV
Original Assignee
Ian Gerald Whiting
John Arthur Scholz
Hugo Kleijer
Hollandse Signaalapparaten B.V.
Thales Nederland B.V.
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
Priority claimed from NL9400973A external-priority patent/NL9400973A/en
Application filed by Ian Gerald Whiting, John Arthur Scholz, Hugo Kleijer, Hollandse Signaalapparaten B.V., Thales Nederland B.V. filed Critical Ian Gerald Whiting
Publication of CA2191763A1 publication Critical patent/CA2191763A1/en
Application granted granted Critical
Publication of CA2191763C publication Critical patent/CA2191763C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G01S7/28—Details of pulse systems
    • G01S7/2813—Means providing a modification of the radiation pattern for cancelling noise, clutter or interfering signals, e.g. side lobe suppression, side lobe blanking, null-steering arrays
    • 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
    • G01S7/36—Means for anti-jamming, e.g. ECCM, i.e. electronic counter-counter measures

Abstract

The invention relates to a radar apparatus provided with a sidelobe blanking circuit, having a directive antenna (1) and a main receiver (2), an auxialiary antenna (3) and an auxiliary receiver (4), moreover having a differential antenna (13) and a differential receiver (14).
Comparators (6, 15) compare the output signal of the main receiver (2) with the outputs of the auxiliary receiver (4) and the differential receiver (14). Blanking does not occur when the output signal of the main receiver (2) is larger than both other output signals.
CA002191763A 1994-06-15 1995-06-06 Radar apparatus with sidelobe blanking circuit Expired - Lifetime CA2191763C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL9400973A NL9400973A (en) 1994-06-15 1994-06-15 Radar device.
PCT/EP1995/002200 WO1995034828A1 (en) 1994-06-15 1995-06-06 Radar apparatus
NL9400973 1997-06-15

Publications (2)

Publication Number Publication Date
CA2191763A1 true CA2191763A1 (en) 1995-12-21
CA2191763C CA2191763C (en) 2007-04-03

Family

ID=37951697

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002191763A Expired - Lifetime CA2191763C (en) 1994-06-15 1995-06-06 Radar apparatus with sidelobe blanking circuit

Country Status (1)

Country Link
CA (1) CA2191763C (en)

Also Published As

Publication number Publication date
CA2191763C (en) 2007-04-03

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20150608