ES2183898T3 - Procedimiento para la reduccion de puestos de recepcion secundarios en receptores homodinos con frecuencia portadora variable en el tiempo. - Google Patents

Procedimiento para la reduccion de puestos de recepcion secundarios en receptores homodinos con frecuencia portadora variable en el tiempo.

Info

Publication number
ES2183898T3
ES2183898T3 ES96111312T ES96111312T ES2183898T3 ES 2183898 T3 ES2183898 T3 ES 2183898T3 ES 96111312 T ES96111312 T ES 96111312T ES 96111312 T ES96111312 T ES 96111312T ES 2183898 T3 ES2183898 T3 ES 2183898T3
Authority
ES
Spain
Prior art keywords
carrier frequency
homodine
signal
time
receptors
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
ES96111312T
Other languages
English (en)
Inventor
Hermann-Josef Dr-Ing Eul
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
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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, Siemens Corp filed Critical Siemens AG
Application granted granted Critical
Publication of ES2183898T3 publication Critical patent/ES2183898T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/22—Homodyne or synchrodyne circuits
    • H03D1/2245—Homodyne or synchrodyne circuits using two quadrature channels
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/165—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/30—Circuits for homodyne or synchrodyne receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Superheterodyne Receivers (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

EN UN RECEPTOR HOMODINO PARA RECEPCION DE UNA SEÑAL DE FRECUENCIA PORTADORA CON FRECUENCIA VARIANTE DE TIEMPO SE MODULA UNA SEÑAL AUXILIAR SOBRE LA SEÑAL DE OSCILACION LOCALIZADA ELEGIDA DE FORMA CORRESPONDIENTE A LA FRECUENCIA PORTADORA ACTUAL. CON ELLO SE OBTIENE A TRAVES DE UNA FILTRACION DE PASABANDA DESPUES DE LA TRANSFORMACION DE LA SEÑAL DE FRECUENCIA PORTADORA EN BANDA DE BASE UNA SEPARACION MEJORADA DE LA SEÑAL OSCILADORA LOCAL. EL CONMUTADOR HF PARA LA ELECCION DE LA SEÑAL OSCILADORA LOCAL CORRESPONDE A LA FRECUENCIA PORTADORA ACTUAL Y PUEDE CON ELLO SER REALIZADA CONTRA UN RECEPTOR HOMODINO CON FRECUENCIA PORTADORA VARIANTE DE TIEMPO SIN MODULACION AUXILIAR DE MANERA SENCILLA Y ECONOMICA. ESTA VENTAJA ESENCIAL DEL RECEPTOR HOMODINO DE ACUERDO CON LA INVENCION ES DE APLICACION PARA UTILIZACION EN ARTICULOS DE MEDICION, TALES COMO EN SISTEMAS DE COMUNICACION MOVILES Y SIN HILOS, CON SIGNIFICADO ECONOMICO ESPECIAL.
ES96111312T 1995-07-18 1996-07-12 Procedimiento para la reduccion de puestos de recepcion secundarios en receptores homodinos con frecuencia portadora variable en el tiempo. Expired - Lifetime ES2183898T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19526171 1995-07-18

Publications (1)

Publication Number Publication Date
ES2183898T3 true ES2183898T3 (es) 2003-04-01

Family

ID=7767131

Family Applications (1)

Application Number Title Priority Date Filing Date
ES96111312T Expired - Lifetime ES2183898T3 (es) 1995-07-18 1996-07-12 Procedimiento para la reduccion de puestos de recepcion secundarios en receptores homodinos con frecuencia portadora variable en el tiempo.

Country Status (4)

Country Link
US (1) US5715530A (es)
EP (1) EP0755125B1 (es)
DE (1) DE59609677D1 (es)
ES (1) ES2183898T3 (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2281236C (en) 1999-09-01 2010-02-09 Tajinder Manku Direct conversion rf schemes using a virtually generated local oscillator
DE10114779A1 (de) * 2001-03-26 2002-10-24 Infineon Technologies Ag Sende-und Empfangseinheit
TWI294730B (en) * 2005-07-01 2008-03-11 Benq Corp Seamless wlan channel migration
TWI292255B (en) * 2005-08-12 2008-01-01 Via Tech Inc Mixer for homodyne rf receiver
WO2009117571A2 (en) * 2008-03-19 2009-09-24 Avi Zohar System and method for locating items and places
US20100054377A1 (en) * 2008-08-28 2010-03-04 Honeywell International Inc. Systems and methods for spurious signal reduction in multi-mode digital navigation receivers
US9733345B2 (en) 2011-07-13 2017-08-15 Iseeloc, Inc. System and method for enhanced point-to-point direction finding
US11061103B1 (en) 2017-02-10 2021-07-13 Iseeloc, Inc. Navigation system, device and method using unsynchronized nodes

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4363139A (en) * 1979-11-02 1982-12-07 Raytheon Company Radio frequency receiver
US4736390A (en) * 1986-10-15 1988-04-05 Itt Avionics, A Division Of Itt Corporation Zero IF radio receiver apparatus
CA2104215C (en) * 1992-01-21 1998-06-23 Theodore T. Sanecki Radio receiver for forming a baseband signal of time-varying frequencies
GB2282925B (en) * 1993-09-30 1998-04-15 Plessey Semiconductors Ltd Direct conversion receivers

Also Published As

Publication number Publication date
EP0755125A2 (de) 1997-01-22
DE59609677D1 (de) 2002-10-24
US5715530A (en) 1998-02-03
EP0755125B1 (de) 2002-09-18
EP0755125A3 (de) 2001-05-16

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