GB9323899D0 - Method and apparatus for signal processing using reference signals - Google Patents

Method and apparatus for signal processing using reference signals

Info

Publication number
GB9323899D0
GB9323899D0 GB939323899A GB9323899A GB9323899D0 GB 9323899 D0 GB9323899 D0 GB 9323899D0 GB 939323899 A GB939323899 A GB 939323899A GB 9323899 A GB9323899 A GB 9323899A GB 9323899 D0 GB9323899 D0 GB 9323899D0
Authority
GB
United Kingdom
Prior art keywords
signal processing
reference signals
signals
signal
processing
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.)
Withdrawn
Application number
GB939323899A
Other versions
GB2273622A (en
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.)
BTG International Ltd
Original Assignee
British Technology Group 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
Priority claimed from GB929226145A external-priority patent/GB9226145D0/en
Priority claimed from GB939303248A external-priority patent/GB9303248D0/en
Application filed by British Technology Group Ltd filed Critical British Technology Group Ltd
Priority to GB9323899A priority Critical patent/GB2273622A/en
Publication of GB9323899D0 publication Critical patent/GB9323899D0/en
Publication of GB2273622A publication Critical patent/GB2273622A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3223—Modifications of amplifiers to reduce non-linear distortion using feed-forward
    • H03F1/3229—Modifications of amplifiers to reduce non-linear distortion using feed-forward using a loop for error extraction and another loop for error subtraction
    • H03F1/3235—Modifications of amplifiers to reduce non-linear distortion using feed-forward using a loop for error extraction and another loop for error subtraction using a pilot signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2201/00—Indexing scheme relating to details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements covered by H03F1/00
    • H03F2201/32—Indexing scheme relating to modifications of amplifiers to reduce non-linear distortion
    • H03F2201/3212—Using a control circuit to adjust amplitude and phase of a signal in a signal path
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2201/00—Indexing scheme relating to details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements covered by H03F1/00
    • H03F2201/32—Indexing scheme relating to modifications of amplifiers to reduce non-linear distortion
    • H03F2201/3218—Indexing scheme relating to modifications of amplifiers to reduce non-linear distortion the main amplifier or error amplifier being a feedforward amplifier
GB9323899A 1992-12-15 1993-11-19 Spread spectrum pilot tone for distortion or instability correction Withdrawn GB2273622A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9323899A GB2273622A (en) 1992-12-15 1993-11-19 Spread spectrum pilot tone for distortion or instability correction

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB929226145A GB9226145D0 (en) 1992-12-15 1992-12-15 Method and apparatus for signal processing using reference signals
GB939303248A GB9303248D0 (en) 1993-02-18 1993-02-18 Method and apparatus for signal processing using reference signals
GB9323899A GB2273622A (en) 1992-12-15 1993-11-19 Spread spectrum pilot tone for distortion or instability correction

Publications (2)

Publication Number Publication Date
GB9323899D0 true GB9323899D0 (en) 1994-01-05
GB2273622A GB2273622A (en) 1994-06-22

Family

ID=27266511

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9323899A Withdrawn GB2273622A (en) 1992-12-15 1993-11-19 Spread spectrum pilot tone for distortion or instability correction

Country Status (1)

Country Link
GB (1) GB2273622A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000004124A (en) * 1998-06-17 2000-01-07 Nec Corp Feedforward amplifier
GB9814400D0 (en) * 1998-07-02 1998-09-02 Nokia Telecommunications Oy Amplifier circuitry
US8379699B2 (en) 2011-03-11 2013-02-19 Telefonaktiebolaget Lm Ericsson (Publ) Spread spectrum pilot signals in an electronic duplexer
US8995932B2 (en) 2013-01-04 2015-03-31 Telefonaktiebolaget L M Ericsson (Publ) Transmitter noise suppression in receiver
US9077440B2 (en) 2013-01-04 2015-07-07 Telefonaktiebolaget L M Ericsson (Publ) Digital suppression of transmitter intermodulation in receiver

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3138650A1 (en) * 1981-09-29 1983-04-14 TE KA DE Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg METHOD FOR MONITORING A RADIO RECEIVING SYSTEM
US4633411A (en) * 1982-12-27 1986-12-30 Rockwell International Corporation Link quality analyzer
US5307022A (en) * 1991-04-15 1994-04-26 Motorola, Inc. High dynamic range modulation independent feed forward amplifier network
US5130663A (en) * 1991-04-15 1992-07-14 Motorola, Inc. Feed forward amplifier network with frequency swept pilot tone

Also Published As

Publication number Publication date
GB2273622A (en) 1994-06-22

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)