CA2180051A1 - Method and apparatus for remotely calibrating a phased array system used for satellite communication - Google Patents

Method and apparatus for remotely calibrating a phased array system used for satellite communication

Info

Publication number
CA2180051A1
CA2180051A1 CA 2180051 CA2180051A CA2180051A1 CA 2180051 A1 CA2180051 A1 CA 2180051A1 CA 2180051 CA2180051 CA 2180051 CA 2180051 A CA2180051 A CA 2180051A CA 2180051 A1 CA2180051 A1 CA 2180051A1
Authority
CA
Canada
Prior art keywords
signals
sets
orthogonally
phased array
array system
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
CA 2180051
Other languages
French (fr)
Other versions
CA2180051C (en
Inventor
Seth David Silverstein
Robert Leland Nevin
William Ernest Engeler
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.)
Lockheed Martin Corp
Original Assignee
General Electric Co
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 US08/499,528 external-priority patent/US5572219A/en
Priority claimed from US08/499,796 external-priority patent/US5677696A/en
Application filed by General Electric Co filed Critical General Electric Co
Publication of CA2180051A1 publication Critical patent/CA2180051A1/en
Application granted granted Critical
Publication of CA2180051C publication Critical patent/CA2180051C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H01Q3/267—Phased-array testing or checking devices

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Selective Calling Equipment (AREA)
  • Radio Transmission System (AREA)
  • Radio Relay Systems (AREA)

Abstract

A method and apparatus for remotely calibrating a system having a plurality of N elements, such as a phased array system, is provided. The method includes generating coherent signals, such as a calibration signal and a reference signal having a predetermined spectral relationship between one another. The calibration signal which is applied to each respective one of the plurality of N elements can be orthogonally encoded based on the entries of a predetermined invertible encoding matrix, such as a binary Hadamard matrix, to generate first and second sets of orthogonally encoded signals. The first and second sets of orthogonally encoded signals and the reference signal are transmitted to a remote location. The transmitted first and second sets of orthogonally, encoded signals are coherently detected at the remote location. The coherently detected first and second sets of orthogonally encoded signals are then decoded using the inverse of the predetermined invertible encoding matrix to generate a set of decoded signals. The set of decoded signals is then processed for generating calibration data for each element of the system.
CA 2180051 1995-07-07 1996-06-27 Method and apparatus for remotely calibrating a phased array system used for satellite communication Expired - Fee Related CA2180051C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US08/499,528 1995-07-07
US08/499,796 1995-07-07
US08/499,528 US5572219A (en) 1995-07-07 1995-07-07 Method and apparatus for remotely calibrating a phased array system used for satellite communication
US08/499,796 US5677696A (en) 1995-07-07 1995-07-07 Method and apparatus for remotely calibrating a phased array system used for satellite communication using a unitary transform encoder

Publications (2)

Publication Number Publication Date
CA2180051A1 true CA2180051A1 (en) 1997-01-08
CA2180051C CA2180051C (en) 2005-04-26

Family

ID=27053173

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2180051 Expired - Fee Related CA2180051C (en) 1995-07-07 1996-06-27 Method and apparatus for remotely calibrating a phased array system used for satellite communication

Country Status (3)

Country Link
EP (1) EP0752736B1 (en)
JP (1) JP4223575B2 (en)
CA (1) CA2180051C (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE508958C2 (en) * 1997-03-07 1998-11-16 Ericsson Telefon Ab L M Method and apparatus for calibrating a phase controlled array antenna
US5851187A (en) * 1997-10-01 1998-12-22 General Electric Company Method and apparatus for ultrasonic beamforming with spatially encoded transmits
JP3096734B2 (en) * 1998-09-04 2000-10-10 郵政省通信総合研究所長 Transmit array antenna calibration method
SE513340C2 (en) * 1998-11-27 2000-08-28 Radio Design Innovation Tj Ab Calibration method for phase controlled group antenna
JP4076678B2 (en) * 1999-07-26 2008-04-16 アンリツ株式会社 Correlation calculator
JP3315955B2 (en) 1999-09-29 2002-08-19 松下電器産業株式会社 Base station apparatus and wireless communication method
DE19951525C2 (en) * 1999-10-26 2002-01-24 Siemens Ag Method for calibrating an electronically phased array antenna in radio communication systems
WO2001050700A1 (en) * 1999-12-29 2001-07-12 Koninklijke Philips Electronics N.V. Communication systems using hadamard coding
GB0005979D0 (en) * 2000-03-14 2001-03-07 Bae Sys Defence Sys Ltd An active phased array antenna assembly
EP1719206B1 (en) 2004-02-27 2008-12-10 Agence Spatiale Europeenne Pulse-coded remote calibration of an active phased array system
JP4195670B2 (en) * 2004-02-27 2008-12-10 三菱重工業株式会社 Transmission wave phase control method and apparatus
JP4768854B2 (en) * 2006-06-30 2011-09-07 テレフオンアクチーボラゲット エル エム エリクソン（パブル） Reconfigurable antenna and method for obtaining the configuration of a reconfigurable antenna
GB0823593D0 (en) 2008-12-30 2009-01-28 Astrium Ltd Calibration apparatus and method
FR3060768B1 (en) * 2016-12-15 2019-05-24 Commissariat A L'energie Atomique Et Aux Energies Alternatives ULTRASONIC SURVEY SIGNAL ACQUISITION METHOD, COMPUTER PROGRAM, AND CORRESPONDING ULTRASONIC SURVEY DEVICE
US10571503B2 (en) * 2018-01-31 2020-02-25 Rockwell Collins, Inc. Methods and systems for ESA metrology
CN112134629A (en) * 2020-09-24 2020-12-25 合肥若森智能科技有限公司 Simple phased array satellite antenna calibration equipment and method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8204616A (en) * 1982-11-29 1984-06-18 Hollandse Signaalapparaten Bv IMPULSE RADAR DEVICE.
GB2281660B (en) * 1993-09-03 1997-04-16 Matra Marconi Space Uk Ltd A digitally controlled beam former for a spacecraft
US5434578A (en) * 1993-10-22 1995-07-18 Westinghouse Electric Corp. Apparatus and method for automatic antenna beam positioning
US5530449A (en) * 1994-11-18 1996-06-25 Hughes Electronics Phased array antenna management system and calibration method

Also Published As

Publication number Publication date
JP4223575B2 (en) 2009-02-12
JPH09121195A (en) 1997-05-06
EP0752736A1 (en) 1997-01-08
EP0752736B1 (en) 2002-05-02
CA2180051C (en) 2005-04-26

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20150629