ATE355690T1 - Frequenzdiskriminator - Google Patents

Frequenzdiskriminator

Info

Publication number
ATE355690T1
ATE355690T1 AT02765850T AT02765850T ATE355690T1 AT E355690 T1 ATE355690 T1 AT E355690T1 AT 02765850 T AT02765850 T AT 02765850T AT 02765850 T AT02765850 T AT 02765850T AT E355690 T1 ATE355690 T1 AT E355690T1
Authority
AT
Austria
Prior art keywords
product
cross
cross product
dot
frequency discriminator
Prior art date
Application number
AT02765850T
Other languages
English (en)
Inventor
Andrew Sendonaris
Original Assignee
Qualcomm Inc
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 Qualcomm Inc filed Critical Qualcomm Inc
Application granted granted Critical
Publication of ATE355690T1 publication Critical patent/ATE355690T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/204—Multiple access
    • H04B7/216—Code division or spread-spectrum multiple access [CDMA, SSMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0024—Carrier regulation at the receiver end
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0053—Closed loops
    • H04L2027/0055—Closed loops single phase
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0063—Elements of loops
    • H04L2027/0065—Frequency error detectors

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Circuits Of Receivers In General (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
AT02765850T 2001-07-16 2002-07-16 Frequenzdiskriminator ATE355690T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/907,096 US7002946B2 (en) 2001-07-16 2001-07-16 Frequency discriminator

Publications (1)

Publication Number Publication Date
ATE355690T1 true ATE355690T1 (de) 2006-03-15

Family

ID=25423513

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02765850T ATE355690T1 (de) 2001-07-16 2002-07-16 Frequenzdiskriminator

Country Status (8)

Country Link
US (1) US7002946B2 (de)
EP (1) EP1407590B1 (de)
JP (1) JP4184264B2 (de)
KR (1) KR100933643B1 (de)
CN (1) CN100388729C (de)
AT (1) ATE355690T1 (de)
DE (1) DE60218476T2 (de)
WO (1) WO2003009558A1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7430191B2 (en) * 2001-09-10 2008-09-30 Qualcomm Incorporated Method and apparatus for performing frequency tracking based on diversity transmitted pilots in a CDMA communication system
US8331492B2 (en) * 2002-07-04 2012-12-11 Intel Mobile Communications GmbH Device and method for determining the deviation of the carrier frequency of a mobile radio device from the carrier frequency of a base station
KR20060008576A (ko) * 2004-07-21 2006-01-27 삼성전자주식회사 기지 순환접두부호를 이용하여 적응적 변조를 수행하는다중 반송파 전송 시스템 및 방법
KR100699836B1 (ko) * 2005-03-19 2007-03-27 삼성전자주식회사 스칼라 곱에서 ｄｆａ 대책을 위한 장치 및 방법
BRPI0520357A2 (pt) * 2005-06-20 2009-09-15 Ericsson Telefon Ab L M nó de acesso, rede de acesso de banda larga de comutação por pacote, e, método de controle de acesso para rede de acesso em um nó de acesso ou nó de borda de acesso
KR100947604B1 (ko) * 2007-12-17 2010-03-15 한국전자통신연구원 이동통신 시스템에서 2차 루프 필터를 사용하는 주파수오차 추정기 및 그 동작방법
US8892256B2 (en) * 2008-01-28 2014-11-18 Seegrid Corporation Methods for real-time and near real-time interactions with robots that service a facility
US8625724B2 (en) * 2009-03-10 2014-01-07 Qualcomm Incorporated Adaptive tracking steps for time and frequency tracking loops
US10048300B2 (en) * 2014-04-25 2018-08-14 Qualcomm Technologies, Inc. Detector circuit
EP4043927B1 (de) 2021-02-12 2025-08-20 u-blox AG Verfahren zur synchronisierung eines codierten signals, empfänger, computerprogrammprodukt und nichtflüchtiges speichermedium

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4896336A (en) * 1988-08-29 1990-01-23 Rockwell International Corporation Differential phase-shift keying demodulator
CA2025135C (en) * 1989-09-13 1993-06-29 Shousei Yoshida Frequency tracking circuit using samples equalized at different sampling instants of same clock period
US5732111A (en) * 1995-12-06 1998-03-24 Rockwell International Corporation Frequency error compensation for direct sequence spread spectrum systems
US5799034A (en) * 1995-12-06 1998-08-25 Rockwell International Corporation Frequency acquisition method for direct sequence spread spectrum systems
GB2309315B (en) 1996-01-09 2000-06-07 Roke Manor Research A frequency offset measuring apparatus
US6304563B1 (en) * 1999-04-23 2001-10-16 Qualcomm Incorporated Method and apparatus for processing a punctured pilot channel

Also Published As

Publication number Publication date
US20030021247A1 (en) 2003-01-30
CN100388729C (zh) 2008-05-14
JP2005522896A (ja) 2005-07-28
US7002946B2 (en) 2006-02-21
JP4184264B2 (ja) 2008-11-19
DE60218476D1 (de) 2007-04-12
EP1407590A1 (de) 2004-04-14
KR100933643B1 (ko) 2009-12-23
CN1547834A (zh) 2004-11-17
EP1407590B1 (de) 2007-02-28
HK1070207A1 (zh) 2005-06-10
WO2003009558A1 (en) 2003-01-30
KR20040022456A (ko) 2004-03-12
DE60218476T2 (de) 2007-11-08

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Legal Events

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