CO4600652A1 - Los filtros i, q transversales en equilibrio para los modu- lares en cuadratura - Google Patents

Los filtros i, q transversales en equilibrio para los modu- lares en cuadratura

Info

Publication number
CO4600652A1
CO4600652A1 CO97015007A CO97015007A CO4600652A1 CO 4600652 A1 CO4600652 A1 CO 4600652A1 CO 97015007 A CO97015007 A CO 97015007A CO 97015007 A CO97015007 A CO 97015007A CO 4600652 A1 CO4600652 A1 CO 4600652A1
Authority
CO
Colombia
Prior art keywords
outputs
weighting means
signal
complementary
recorder
Prior art date
Application number
CO97015007A
Other languages
English (en)
Inventor
Paul W Dent
Original Assignee
Ericsson 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 Ericsson Inc filed Critical Ericsson Inc
Publication of CO4600652A1 publication Critical patent/CO4600652A1/es

Links

Classifications

    • 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
    • H04L25/03834—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using pulse shaping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2003—Modulator circuits; Transmitter circuits for continuous phase modulation
    • H04L27/2007—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained
    • H04L27/2017—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained in which the phase changes are non-linear, e.g. generalized and Gaussian minimum shift keying, tamed frequency modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
    • H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
    • H04L27/206—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers
    • H04L27/2064—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers using microwave technology
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Nonlinear Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Un modulador en cuadratura para imprimir una modulacióndeseada en una señal de radio, incluyendo:un medio de procesamiento de la señal digital para formar una señal I y una señal Qrepresentativas de una modulación deseada de la señal de radio, dichas señales I y Q cada una adoptando solamente un solo valor de la señal o su valor complementario en los intervalos sucesivos de un reloj de muestreo;un medio para el primer (I) y segundo (Q) registrador de cambio para cronometrar dichas señales I y Q respectivamente dentro de una cadena de etapas del registrador empleando dicho reloj de muestreo y generando desde cada etapa una salida I y Q demorada y su lógica salida inversa complementaria;un primer medio de ponderación conectado a las salidas I seleccionadas o las salidas complementarias de dicho primer registrador de cambio (I) y un segundo e idéntico medio de ponderación conectado a las salidas opuestas no seleccionadas por dicha primer medio de ponderación, dicho primer y segundo medio de ponderación generan una primera y segunda señales de salida ponderada;un tercer medio ponderado conectado a las salidas (Q) seleccionadas o las salidas complementarias de dicho primer registrador de cambio (Q) y un cuarto e idéntico medio de ponderación conectado a las salidas opuestas no seleccionadas por dicho tercer medio de ponderación, dicho tercero y cuarto medio de ponderación generan tercera y cuarta señales de salida ponderada; ylos medios de modulación en cuadratura que tienen entradas para recibir las ya nombradas primera hasta cuarta señal de salida ponderada para imprimir dicha modulación deseada en una señal de frecuencia portadora radial.
CO97015007A 1996-03-20 1997-03-20 Los filtros i, q transversales en equilibrio para los modu- lares en cuadratura CO4600652A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US62084396A 1996-03-20 1996-03-20

Publications (1)

Publication Number Publication Date
CO4600652A1 true CO4600652A1 (es) 1998-05-08

Family

ID=24487644

Family Applications (1)

Application Number Title Priority Date Filing Date
CO97015007A CO4600652A1 (es) 1996-03-20 1997-03-20 Los filtros i, q transversales en equilibrio para los modu- lares en cuadratura

Country Status (12)

Country Link
EP (1) EP0888681B1 (es)
JP (1) JP3758681B2 (es)
KR (1) KR100462139B1 (es)
CN (1) CN1147098C (es)
AR (1) AR006980A1 (es)
AU (1) AU712678B2 (es)
CA (1) CA2250330C (es)
CO (1) CO4600652A1 (es)
DE (1) DE69722390T2 (es)
ID (1) ID16560A (es)
TW (1) TW317680B (es)
WO (1) WO1997035411A1 (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108832930A (zh) * 2018-04-29 2018-11-16 浙江工规科技有限公司 一种dac重构滤波器

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5278492A (en) * 1992-01-15 1994-01-11 Henkel Corporation Controllable AC power supply for an ozonator
IL104412A (en) * 1992-01-16 1996-11-14 Qualcomm Inc Method and instrument for the formation of data for transmission
US5530722A (en) * 1992-10-27 1996-06-25 Ericsson Ge Mobile Communications Inc. Quadrature modulator with integrated distributed RC filters

Also Published As

Publication number Publication date
CN1147098C (zh) 2004-04-21
AU712678B2 (en) 1999-11-11
EP0888681A1 (en) 1999-01-07
ID16560A (id) 1997-10-16
DE69722390D1 (de) 2003-07-03
DE69722390T2 (de) 2004-04-01
EP0888681B1 (en) 2003-05-28
TW317680B (es) 1997-10-11
KR20000064738A (ko) 2000-11-06
AR006980A1 (es) 1999-10-13
CN1219315A (zh) 1999-06-09
WO1997035411A1 (en) 1997-09-25
CA2250330C (en) 2004-11-23
AU2204697A (en) 1997-10-10
JP3758681B2 (ja) 2006-03-22
CA2250330A1 (en) 1997-09-25
JP2000507410A (ja) 2000-06-13
KR100462139B1 (ko) 2005-02-28

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