IT1020414B - Dispositivo per la correzione au tomatica degli effetti di depola rizzazione di onde elettromagneti che nei collegamenti a radiofre quenza utilizzanti una doppia po larizzazione - Google Patents

Dispositivo per la correzione au tomatica degli effetti di depola rizzazione di onde elettromagneti che nei collegamenti a radiofre quenza utilizzanti una doppia po larizzazione

Info

Publication number
IT1020414B
IT1020414B IT26884/74A IT2688474A IT1020414B IT 1020414 B IT1020414 B IT 1020414B IT 26884/74 A IT26884/74 A IT 26884/74A IT 2688474 A IT2688474 A IT 2688474A IT 1020414 B IT1020414 B IT 1020414B
Authority
IT
Italy
Prior art keywords
depolication
larization
tomatic
correction
connections
Prior art date
Application number
IT26884/74A
Other languages
English (en)
Original Assignee
Telespazio Spa
Gte Telecom Spa
Sits Soc It Telecom Siemens
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 Telespazio Spa, Gte Telecom Spa, Sits Soc It Telecom Siemens filed Critical Telespazio Spa
Priority to IT26884/74A priority Critical patent/IT1020414B/it
Priority to BR7504650*A priority patent/BR7504650A/pt
Priority to FR7526659A priority patent/FR2284231A1/fr
Priority to JP50105869A priority patent/JPS5152216A/ja
Priority to CA234,586A priority patent/CA1074870A/en
Priority to DE2539232A priority patent/DE2539232C2/de
Priority to US05/610,042 priority patent/US3986123A/en
Priority to GB36328/75A priority patent/GB1506889A/en
Application granted granted Critical
Publication of IT1020414B publication Critical patent/IT1020414B/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/002—Reducing depolarization effects

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Relay Systems (AREA)
  • Radio Transmission System (AREA)
  • Networks Using Active Elements (AREA)
IT26884/74A 1974-09-03 1974-09-03 Dispositivo per la correzione au tomatica degli effetti di depola rizzazione di onde elettromagneti che nei collegamenti a radiofre quenza utilizzanti una doppia po larizzazione IT1020414B (it)

Priority Applications (8)

Application Number Priority Date Filing Date Title
IT26884/74A IT1020414B (it) 1974-09-03 1974-09-03 Dispositivo per la correzione au tomatica degli effetti di depola rizzazione di onde elettromagneti che nei collegamenti a radiofre quenza utilizzanti una doppia po larizzazione
BR7504650*A BR7504650A (pt) 1974-09-03 1975-07-22 Aparelhagem para corrigir automaticamente os efeitos de despolarizacao sobre as ondas eletro-magneticas
FR7526659A FR2284231A1 (fr) 1974-09-03 1975-08-29 Dispositif de correction automatique des effets de depolarisation d'ondes electromagnetiques a double polarisation dans les systemes de transmission haute frequence
JP50105869A JPS5152216A (it) 1974-09-03 1975-09-01
CA234,586A CA1074870A (en) 1974-09-03 1975-09-02 Apparatus for automatically correcting depolarization effects on electro-magnetic waves in radio-frequency connections using a double polarization
DE2539232A DE2539232C2 (de) 1974-09-03 1975-09-03 Schaltungsanordnung zur automatischen Entzerrung der Depolarisation elektromagnetischer Wellen bei Funkverbindungen mit doppelter Polarisation
US05/610,042 US3986123A (en) 1974-09-03 1975-09-03 System for the automatic correction of polarization distortion in multichannel radiocommunication station
GB36328/75A GB1506889A (en) 1974-09-03 1975-09-03 Apparatuses for automatically correcting depolarization effects on electro-magnetic waves in radio frequency connections using double polarization

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT26884/74A IT1020414B (it) 1974-09-03 1974-09-03 Dispositivo per la correzione au tomatica degli effetti di depola rizzazione di onde elettromagneti che nei collegamenti a radiofre quenza utilizzanti una doppia po larizzazione

Publications (1)

Publication Number Publication Date
IT1020414B true IT1020414B (it) 1977-12-20

Family

ID=11220451

Family Applications (1)

Application Number Title Priority Date Filing Date
IT26884/74A IT1020414B (it) 1974-09-03 1974-09-03 Dispositivo per la correzione au tomatica degli effetti di depola rizzazione di onde elettromagneti che nei collegamenti a radiofre quenza utilizzanti una doppia po larizzazione

Country Status (8)

Country Link
US (1) US3986123A (it)
JP (1) JPS5152216A (it)
BR (1) BR7504650A (it)
CA (1) CA1074870A (it)
DE (1) DE2539232C2 (it)
FR (1) FR2284231A1 (it)
GB (1) GB1506889A (it)
IT (1) IT1020414B (it)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51115717A (en) * 1975-03-03 1976-10-12 Nec Corp Cross polarized wave compensating method
US4112370A (en) * 1976-08-06 1978-09-05 Signatron, Inc. Digital communications receiver for dual input signal
JPS5332608A (en) * 1976-09-07 1978-03-28 Nec Corp Compensation system for angular frequency variation
JPS5332609A (en) * 1976-09-07 1978-03-28 Nec Corp Detecting system for interference signal by means of time sharing
JPS5362919A (en) * 1976-11-18 1978-06-05 Kokusai Denshin Denwa Co Ltd Axial radio compensator system
US4191926A (en) * 1977-09-16 1980-03-04 Communications Satellite Corporation Method and apparatus for interference cancellation at base-band using multiplication of the desired interfering carriers
JPS5945309B2 (ja) * 1978-02-08 1984-11-05 ケイディディ株式会社 交さ偏波補償方式
US4220923A (en) * 1978-03-29 1980-09-02 Harris Corporation Adaptive interference reduction system for crosstalk cancellation in a dual polarization system
US4292685A (en) * 1978-05-31 1981-09-29 Lee Lin Shan Apparatus and method for controlling crosspolarization of signals in a frequency reuse system
US4293945A (en) * 1979-08-29 1981-10-06 Communications Satellite Corporation Multichannel correlation receiver for determining depolarization of signals along signal propagation paths
US4283795A (en) * 1979-10-03 1981-08-11 Bell Telephone Laboratories, Incorporated Adaptive cross-polarization interference cancellation arrangements
US4479258A (en) * 1981-09-30 1984-10-23 Nippon Electric Co., Ltd. Cross-polarization crosstalk canceller
AU553961B2 (en) * 1981-11-16 1986-07-31 Nippon Electric Co. Ltd. Satellite earth station output control
US4513429A (en) * 1981-12-03 1985-04-23 The United States Of America As Represented By The Secretary Of The Air Force Sample data phase locked loop for adaptive doppler tracker
US4490684A (en) * 1983-01-03 1984-12-25 Motorola, Inc. Adaptive quadrature combining apparatus
US5036331A (en) * 1989-09-18 1991-07-30 The Boeing Company Adaptive polarization combiner
JP2666702B2 (ja) * 1993-10-29 1997-10-22 日本電気株式会社 交差偏波補償装置
US6185408B1 (en) * 1997-09-03 2001-02-06 Motorola, Inc. Method and apparatus for mitigating the effects of a communications channel using polarized signals
WO2002069443A1 (en) * 2001-02-28 2002-09-06 Itt Manufacturing Enterprises, Inc. Integrated beamformer/method architecture
US8922771B2 (en) 2011-10-31 2014-12-30 Northrop Grumman Systems Corporation Multichannel polarization stabilizer
US8922772B2 (en) 2011-10-31 2014-12-30 Northrop Grumman Systems Corporation Multichannel polarization stabilization employing synchronous phase-locking methods

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3728644A (en) * 1971-11-01 1973-04-17 Bell Telephone Labor Inc Polarization transformation apparatus
US3735266A (en) * 1971-12-20 1973-05-22 Bell Telephone Labor Inc Method and apparatus for reducing crosstalk on cross-polarized communication links
US3883872A (en) * 1973-06-28 1975-05-13 Nasa System for interference signal nulling by polarization adjustment
US3914764A (en) * 1974-03-04 1975-10-21 Bell Telephone Labor Inc Apparatus for reducing cross coupling between orthogonal polarizations in satellite communication systems

Also Published As

Publication number Publication date
FR2284231B1 (it) 1978-03-17
DE2539232A1 (de) 1976-03-11
CA1074870A (en) 1980-04-01
BR7504650A (pt) 1976-08-03
GB1506889A (en) 1978-04-12
FR2284231A1 (fr) 1976-04-02
DE2539232C2 (de) 1983-12-15
US3986123A (en) 1976-10-12
JPS5152216A (it) 1976-05-08

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