ES2046564T3 - Circuito para el reconocimiento de una senal de referencia de la frecuencia. - Google Patents

Circuito para el reconocimiento de una senal de referencia de la frecuencia.

Info

Publication number
ES2046564T3
ES2046564T3 ES199090104519T ES90104519T ES2046564T3 ES 2046564 T3 ES2046564 T3 ES 2046564T3 ES 199090104519 T ES199090104519 T ES 199090104519T ES 90104519 T ES90104519 T ES 90104519T ES 2046564 T3 ES2046564 T3 ES 2046564T3
Authority
ES
Spain
Prior art keywords
circuit
frequency
filters
devices
burst
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.)
Expired - Lifetime
Application number
ES199090104519T
Other languages
English (en)
Inventor
Otmar Dipl-Ing. Ringelhaan
Horst Dipl.-Ing. Fenske
Gerhard Dipl.-Phys. Eichiner
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Application granted granted Critical
Publication of ES2046564T3 publication Critical patent/ES2046564T3/es
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
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2643—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA]

Landscapes

  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Engineering & Computer Science (AREA)
  • Burglar Alarm Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Details Of Television Scanning (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Color Television Systems (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Surgical Instruments (AREA)
  • Stereophonic System (AREA)
  • Noise Elimination (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

EL INVENTO SE REFIERE A UN CIRCUITO PARA LA IDENTIFICACION DE UNA SEÑAL DE REFERENCIA DE FRECUENCIA, QUE SE TRANSMITE EN EL MULTIPLEX DE TIEMPO JUNTO CON UNA SEÑAL DE INFORMACION. ESTE CIRCUITO SE PREVE PARA SISTEMAS DE RADIO MOVILES PARA CORREGIR EL PATRON DE FRECUENCIA DE LAS ESTACIONES MOVILES POR TRANSMISION DE UNA FRECUENCIA DE REFERENCIA DE LAS ESTACIONES DE BASE FIJAS. EL CIRCUITO POSEE DOS FILTROS TRANSVERSALES (1) PARA LA DIFERENCIACION ENTRE SEÑAL DE INFORMACION Y EL FC-BURST (FRECUENCY CORRECTION BURST), QUE SE CONSTRUYEN DE TALFORMA, QUE EL FACTOR DE TRANSMISION DE UNO DE LOS FILTROS SEA MINIMO CON LA FRECUENCIA FC, MIENTRAS QUE EL DEL OTRO ES MAXIMO. DETRAS DE LOS FILTROS (1) SE HALLAN DISPOSITIVOS (2,3) PARA DETERMINAR EL VALOR ABSOLUTO DE LAS SEÑALES DE SALIDA DE LOS FILTROS, DISPOSITIVOS (4 A 9) PARA FORMAR EL VALOR MEDIO EN EL INTERVALO DE TIEMPO DE LA LONGITDUD DEL BURST Y UN DISPOSITIVO (10) PARA FORMAR LOS COCIENTES DE LAS TENSIONES DE SALIDA DE LAS DOS VIAS.
ES199090104519T 1989-03-16 1990-03-09 Circuito para el reconocimiento de una senal de referencia de la frecuencia. Expired - Lifetime ES2046564T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP89104713 1989-03-16

Publications (1)

Publication Number Publication Date
ES2046564T3 true ES2046564T3 (es) 1994-02-01

Family

ID=8201095

Family Applications (1)

Application Number Title Priority Date Filing Date
ES199090104519T Expired - Lifetime ES2046564T3 (es) 1989-03-16 1990-03-09 Circuito para el reconocimiento de una senal de referencia de la frecuencia.

Country Status (9)

Country Link
EP (1) EP0387720B1 (es)
AT (1) ATE98070T1 (es)
DE (1) DE59003646D1 (es)
DK (1) DK0387720T3 (es)
ES (1) ES2046564T3 (es)
FI (1) FI901306A7 (es)
IE (1) IE63591B1 (es)
NO (1) NO175696C (es)
PT (1) PT93455B (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4127501A1 (de) * 1990-09-07 1992-03-12 Telefunken Systemtechnik Verfahren zur erkennung der frequenzablage bei digitalen nachrichtenuebertragungen
WO1992011706A1 (en) * 1990-12-17 1992-07-09 Motorola, Inc. Frequency and time slot synchronization using adaptive filtering
KR100193837B1 (ko) * 1996-08-24 1999-06-15 윤종용 시분할다윈접속 디지탈 이동통신 시스템의 주파수 교정 버스트 검출방법
CN1112013C (zh) * 1997-09-30 2003-06-18 西门子公司 搜索监听声的方法
US6356608B1 (en) 1998-06-29 2002-03-12 Telefonaktiebolaget Lm Ericsson (Publ) Method, apparatus, and system for determining a location of a frequency synchronization signal

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4358737A (en) * 1980-10-16 1982-11-09 Motorola, Inc. Digitally controlled bandwidth sampling filter-detector

Also Published As

Publication number Publication date
EP0387720B1 (de) 1993-12-01
IE63591B1 (en) 1995-05-17
PT93455B (pt) 1996-05-31
NO175696B (no) 1994-08-08
DK0387720T3 (da) 1994-03-21
NO901170D0 (no) 1990-03-13
ATE98070T1 (de) 1993-12-15
NO901170L (no) 1990-09-17
NO175696C (no) 1994-11-16
FI901306A0 (fi) 1990-03-15
DE59003646D1 (de) 1994-01-13
PT93455A (pt) 1990-11-07
EP0387720A1 (de) 1990-09-19
FI901306A7 (fi) 1990-09-17
IE900942L (en) 1990-09-16

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