USB496502I5 - - Google Patents

Info

Publication number
USB496502I5
USB496502I5 US49650274A USB496502I5 US B496502 I5 USB496502 I5 US B496502I5 US 49650274 A US49650274 A US 49650274A US B496502 I5 USB496502 I5 US B496502I5
Authority
US
United States
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.)
Pending
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
Priority to US05/496,502 priority Critical patent/US3987444A/en
Publication of USB496502I5 publication Critical patent/USB496502I5/en
Application granted granted Critical
Publication of US3987444A publication Critical patent/US3987444A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/086—Weighted combining using weights depending on external parameters, e.g. direction of arrival [DOA], predetermined weights or beamforming
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/2605—Array of radiating elements provided with a feedback control over the element weights, e.g. adaptive arrays
    • H01Q3/2611—Means for null steering; Adaptive interference nulling
    • H01Q3/2617—Array of identical elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
US05/496,502 1974-08-12 1974-08-12 Interference rejection system for multi-beam antenna having single control loop Expired - Lifetime US3987444A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US05/496,502 US3987444A (en) 1974-08-12 1974-08-12 Interference rejection system for multi-beam antenna having single control loop

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/496,502 US3987444A (en) 1974-08-12 1974-08-12 Interference rejection system for multi-beam antenna having single control loop

Publications (2)

Publication Number Publication Date
USB496502I5 true USB496502I5 (en) 1976-01-20
US3987444A US3987444A (en) 1976-10-19

Family

ID=23972924

Family Applications (1)

Application Number Title Priority Date Filing Date
US05/496,502 Expired - Lifetime US3987444A (en) 1974-08-12 1974-08-12 Interference rejection system for multi-beam antenna having single control loop

Country Status (1)

Country Link
US (1) US3987444A (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6297772B1 (en) * 1974-09-23 2001-10-02 The United States Of America As Represented By The Secretary Of The Navy Predicting coherent sidelobe canceller
US4145658A (en) * 1977-06-03 1979-03-20 Bell Telephone Laboratories, Incorporated Method and apparatus for cancelling interference between area coverage and spot coverage antenna beams
US4178550A (en) * 1977-06-03 1979-12-11 Bell Telephone Laboratories, Incorporated Method and apparatus to permit substantial cancellation of interference between a received first and second signal
US4163942A (en) * 1977-10-17 1979-08-07 Bell Telephone Laboratories, Incorporated Method and apparatus for effecting communication with receivers disposed in blackout regions formed by concurrently transmitted overlapping global and spot beams
US4196436A (en) * 1978-11-14 1980-04-01 Ford Motor Company Differential backlobe antenna array
US4286268A (en) * 1979-04-13 1981-08-25 Motorola Inc. Adaptive array with optimal sequential gradient control
US4320535A (en) * 1979-10-03 1982-03-16 Bell Telephone Laboratories, Incorporated Adaptive interference suppression arrangement
US4309769A (en) * 1980-02-25 1982-01-05 Harris Corporation Method and apparatus for processing spread spectrum signals
US4338605A (en) * 1980-02-28 1982-07-06 Westinghouse Electric Corp. Antenna array with adaptive sidelobe cancellation
US5361074A (en) * 1980-05-05 1994-11-01 The United States Of America As Represented By The Secretary Of The Navy Mainlobe canceller system
FR2511196A1 (en) * 1981-08-07 1983-02-11 Thomson Csf MAIN AND AUXILIARY ANTENNA ASSEMBLY WITH ELECTRONIC SCAN AND RADAR COMPRISING SUCH AN ASSEMBLY
US4450448A (en) * 1981-08-28 1984-05-22 Grumman Aerospace Corporation Apparatus and method for improving antenna sidelobe cancellation
DE3230268A1 (en) * 1982-08-14 1984-02-16 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Antenna arrangement for direction-finding systems on masts
US5033029A (en) * 1983-05-12 1991-07-16 Westinghouse Electric Corp. Interlaced sonar system
US5581260A (en) * 1995-01-27 1996-12-03 Hazeltine Corporation Angular diversity/spaced diversity cellular antennas and methods
US6160510A (en) * 1997-07-03 2000-12-12 Lucent Technologies, Inc. Delay line antenna array system and method thereof
DE19827795A1 (en) * 1998-06-23 1999-12-30 Sel Verteidigungssysteme Gmbh Integrated adaptive multiple beam antenna arrangement for high frequency operation
US6564038B1 (en) * 2000-02-23 2003-05-13 Lucent Technologies Inc. Method and apparatus for suppressing interference using active shielding techniques
GB0222555D0 (en) 2002-09-28 2002-11-06 Koninkl Philips Electronics Nv Packet data transmission system
US8588220B2 (en) * 2005-12-30 2013-11-19 L-3 Communications Corporation Method and apparatus for mitigating port swapping during signal tracking

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3177489A (en) * 1960-01-11 1965-04-06 Thompson Ramo Wooldridge Inc Interference suppression systems
US3763490A (en) * 1971-12-10 1973-10-02 Gen Electric Adaptive beamformer with time constant control

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3177489A (en) * 1960-01-11 1965-04-06 Thompson Ramo Wooldridge Inc Interference suppression systems
US3763490A (en) * 1971-12-10 1973-10-02 Gen Electric Adaptive beamformer with time constant control

Also Published As

Publication number Publication date
US3987444A (en) 1976-10-19

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