AR020139A1 - Metodo y receptor para recibir una senal. - Google Patents

Metodo y receptor para recibir una senal.

Info

Publication number
AR020139A1
AR020139A1 ARP990103958A ARP990103958A AR020139A1 AR 020139 A1 AR020139 A1 AR 020139A1 AR P990103958 A ARP990103958 A AR P990103958A AR P990103958 A ARP990103958 A AR P990103958A AR 020139 A1 AR020139 A1 AR 020139A1
Authority
AR
Argentina
Prior art keywords
signal
intermediate frequency
frequency signal
samples
quadrature
Prior art date
Application number
ARP990103958A
Other languages
English (en)
Original Assignee
Ericsson Telefon Ab L M
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 Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of AR020139A1 publication Critical patent/AR020139A1/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
    • H04B1/06—Receivers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/007—Demodulation of angle-, frequency- or phase- modulated oscillations by converting the oscillations into two quadrature related signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/39—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
    • H03M3/40—Arrangements for handling quadrature signals, e.g. complex modulators
    • 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
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
    • H04L27/2332—Demodulator circuits; Receiver circuits using non-coherent demodulation using a non-coherent carrier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/39—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
    • H03M3/412—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution
    • H03M3/422—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only
    • H03M3/43—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only the quantiser being a single bit one

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Analogue/Digital Conversion (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

Se recibe una senal de frecuencia de radio usando un convertidor análogico, digital sigma delta para tomar una muestra de la senal de frecuencia de radioa una velocidad de muestreo y para generar muestras digitales de 1 bit de la senal querepresent en una senal de frecuencia intermedia digital. Se desmodula lasenal de frecuencia intermedia para generar muestras de cuadratura y en fase. Se puede desmodular al generar una primera senal mezclada, combinando las muestrasdigitales de 1bit que repre sentan la senal de frecuencia intermedia con una primera secuencia que representra una senal de mezclado de coseno; al generar unasegunda senal mezclada combinando las muestras digitales de 1 bit que representan la senal de frecuenciaintermedia con una segunda secuencia que representa unasenal de mezclado de seno; y al decimar la primera y la segunda senales mezcladas para generar las muestras de cuadratura y en fase. En realizacionesalternativas, la senal de frecuenciaintermedia es convertida directamente en senales de cuadratura y en fase usando una filtracion de decimacion de paso debanda para tomar submuestras de dos secuencias desplazadas temporalmente de la frecuencia intermedia. En otra realizacion, elconvertidor analogico, digita lsigma, delta usa una toma de submuestras para convertir la senal de frecuencia de radio en una primera frecuencia intermedia, y se usa un filtro de decimacionpara convertir además la se senal en una segunda frecuenciaintermedia. Un desmodulador IQ luego reconstruye las senales de cuadratura y en fase a partir de lasegunda senal de frecuencia intermedia.
ARP990103958A 1998-08-07 1999-08-06 Metodo y receptor para recibir una senal. AR020139A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/131,205 US6459743B1 (en) 1998-08-07 1998-08-07 Digital reception with radio frequency sampling

Publications (1)

Publication Number Publication Date
AR020139A1 true AR020139A1 (es) 2002-04-10

Family

ID=22448392

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP990103958A AR020139A1 (es) 1998-08-07 1999-08-06 Metodo y receptor para recibir una senal.

Country Status (10)

Country Link
US (1) US6459743B1 (es)
EP (1) EP1103100A1 (es)
JP (1) JP4213348B2 (es)
KR (1) KR20010072299A (es)
CN (1) CN1138345C (es)
AR (1) AR020139A1 (es)
AU (1) AU5038199A (es)
CA (1) CA2339798A1 (es)
TW (1) TW431073B (es)
WO (1) WO2000008764A1 (es)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6748025B1 (en) * 1999-02-02 2004-06-08 Technoconcepts, Inc. Direct conversion delta-sigma receiver
US6922555B1 (en) * 1999-09-02 2005-07-26 Koninklijke Philips Electronics N.V. Phase interpolation receiver for angle modulated RF signals
US7245651B1 (en) * 1999-12-20 2007-07-17 Intel Corporation Dual mode filter for mobile telecommunications
US6683905B1 (en) * 2000-04-17 2004-01-27 Rf Micro Devices, Inc. Dual-mode receiver
GB2403612B (en) 2000-05-12 2005-02-16 Global Silicon Ltd Radio receiver
US6639946B2 (en) * 2000-12-01 2003-10-28 International Business Machines Corporation Sigma delta modulator with SAW filter
WO2002095972A1 (en) * 2001-05-25 2002-11-28 The National University Of Singapore Sigma-delta modulation code division multiple-access receiver
US7072418B2 (en) * 2001-09-18 2006-07-04 Thomson Licensing Method and apparatus for performing Nyquist folding frequency modulation
GB2405061B (en) 2001-12-05 2005-05-18 Matsushita Electric Ind Co Ltd Multirate digital transceiver
TW579498B (en) * 2001-12-19 2004-03-11 Via Tech Inc Method for data recovery with lower sampling frequency and related apparatus
KR100454483B1 (ko) * 2002-03-04 2004-10-28 삼성전자주식회사 아이/큐 복조장치 및 그의 아이/큐 신호생성방법
US7373119B2 (en) 2002-03-07 2008-05-13 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for analog-to-digital conversion
US7173980B2 (en) * 2002-09-20 2007-02-06 Ditrans Ip, Inc. Complex-IF digital receiver
US7190288B2 (en) * 2003-06-27 2007-03-13 Northrop Grumman Corp. Look-up table delta-sigma conversion
US7006023B2 (en) * 2003-09-12 2006-02-28 Texas Instruments Inc. Sigma-delta modulator with passive bandpass loop filter
US7126516B2 (en) 2004-02-28 2006-10-24 Lucent Technologies Inc. Bandpass delta-sigma analog-to-digital converters
US7860189B2 (en) * 2004-08-19 2010-12-28 Intrinsix Corporation Hybrid heterodyne transmitters and receivers
FR2885467B1 (fr) * 2005-05-04 2007-08-24 St Microelectronics Rousset Dispositif de reception numerique base sur un comparateur en entree
US7656932B2 (en) * 2005-05-04 2010-02-02 Stmicroelectronics (Rousset) Sas Digital receiver device
WO2007120400A1 (en) 2006-04-16 2007-10-25 Intrinsix Corporation Mismatch-shaping dynamic element matching systems and methods for multi-bit sigma-delta data converters
KR100924172B1 (ko) * 2006-12-08 2009-10-28 한국전자통신연구원 가변 대역폭 무선채널 측정 방법 및 이를 위한 송수신장치
US8369820B2 (en) * 2007-09-05 2013-02-05 General Instrument Corporation Frequency multiplier device
KR20110002020A (ko) * 2008-03-12 2011-01-06 하이프레스 인코포레이티드 디지털 ｒｆ 트랜시버 시스템 및 방법
EP2345186A1 (en) * 2008-09-30 2011-07-20 Nokia Siemens Networks Oy Method and device for signal processing and communication system comprising such device
US8625726B2 (en) 2011-09-15 2014-01-07 The Boeing Company Low power radio frequency to digital receiver
CN103931114B (zh) * 2011-11-30 2017-03-01 株式会社日立制作所 无线通信系统、接收机、升降机控制系统以及变电设备控制系统
KR101764225B1 (ko) 2011-12-14 2017-08-07 한국전자통신연구원 디지털 ｒｆ 수신기
US9209844B2 (en) 2012-01-11 2015-12-08 Electronics And Telecommunications Research Institute Subsampling receiver using interstage off-chip RF band pass filter
US8687739B1 (en) * 2012-12-12 2014-04-01 Phuong Huynh Quadrature bandpass-sampling RF receiver
CN105122077B (zh) * 2013-04-09 2019-09-24 皇家飞利浦有限公司 用于生成数字磁共振信息信号的射频天线设备
TWI539759B (zh) 2014-09-12 2016-06-21 奇景光電股份有限公司 不具降頻器的連續時間三角積分類比至數位接收器
US10680863B2 (en) * 2015-03-31 2020-06-09 Sony Corporation Modulation apparatus
US9985608B2 (en) 2015-09-24 2018-05-29 Analog Devices Global Small area and low power IIR filter structure
US10082565B2 (en) 2016-03-31 2018-09-25 Butterfly Network, Inc. Multilevel bipolar pulser
US9778348B1 (en) 2016-03-31 2017-10-03 Butterfly Network, Inc. Symmetric receiver switch for bipolar pulser
CN110311695B (zh) * 2019-03-26 2021-04-13 中国科学院上海微系统与信息技术研究所 一种无线通信全数字射频接收装置
US11569856B2 (en) 2020-12-07 2023-01-31 Electronics And Telecommunications Research Institute Method and apparatus for receiving periodic band-limited signal
US12009831B2 (en) * 2021-05-28 2024-06-11 Nxp Usa, Inc. System having an analog to digital converter (ADC) and a digital signal processor
CN113746430B (zh) * 2021-08-27 2024-08-02 山西宇翔信息技术有限公司 信号处理方法和装置
US12132496B2 (en) * 2022-07-31 2024-10-29 Texas Instruments Incorporated Non-PLL, 1-wire, asynchronous oversampling of delta-sigma ADC bitstream

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4893316A (en) * 1985-04-04 1990-01-09 Motorola, Inc. Digital radio frequency receiver
FR2680063B1 (fr) 1991-08-02 1998-01-30 Ireste Universite Nantes Demodulateur numerique en quadrature.
WO1994005087A1 (en) * 1992-08-25 1994-03-03 Wireless Access, Inc. A direct conversion receiver for multiple protocols
FR2702902B1 (fr) * 1993-03-15 1995-04-21 Alcatel Radiotelephone Récepteur numérique à fréquence intermédiaire et procédé de filtrage en bande de base mis en Óoeuvre dans ce récepteur.
US5375146A (en) * 1993-05-06 1994-12-20 Comsat Corporation Digital frequency conversion and tuning scheme for microwave radio receivers and transmitters
FI107855B (fi) * 1993-09-10 2001-10-15 Nokia Mobile Phones Ltd Vt-signaalin demodulointi sigma-delta-muuntimella
US5442353A (en) 1993-10-25 1995-08-15 Motorola, Inc. Bandpass sigma-delta analog-to-digital converter (ADC), method therefor, and receiver using same
JP3310114B2 (ja) * 1994-09-14 2002-07-29 株式会社東芝 周波数変換機能を有するａ／ｄ変換装置およびこれを用いた無線機
US5757867A (en) 1995-03-30 1998-05-26 The United States Of America As Represented By The Secretary Of The Navy Digital mixing to baseband decimation filter
US5621345A (en) 1995-04-07 1997-04-15 Analog Devices, Inc. In-phase and quadrature sampling circuit
US5504455A (en) * 1995-05-16 1996-04-02 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defence Of Her Majesty's Canadian Government Efficient digital quadrature demodulator
US5787125A (en) * 1996-05-06 1998-07-28 Motorola, Inc. Apparatus for deriving in-phase and quadrature-phase baseband signals from a communication signal
US5952947A (en) * 1997-09-09 1999-09-14 Raytheon Company Flexible and programmable delta-sigma analog signal converter
US6005506A (en) * 1997-12-09 1999-12-21 Qualcomm, Incorporated Receiver with sigma-delta analog-to-digital converter for sampling a received signal
US5910752A (en) * 1997-12-09 1999-06-08 Qualcomm Incorporated Frequency demodulator with resampled output

Also Published As

Publication number Publication date
JP4213348B2 (ja) 2009-01-21
EP1103100A1 (en) 2001-05-30
AU5038199A (en) 2000-02-28
CA2339798A1 (en) 2000-02-17
CN1138345C (zh) 2004-02-11
WO2000008764A1 (en) 2000-02-17
TW431073B (en) 2001-04-21
CN1317169A (zh) 2001-10-10
JP2002522942A (ja) 2002-07-23
KR20010072299A (ko) 2001-07-31
US6459743B1 (en) 2002-10-01

Similar Documents

Publication Publication Date Title
AR020139A1 (es) Metodo y receptor para recibir una senal.
TW328563B (en) Method and apparatus for measuring adjacent channel leakage power
EP0813345A3 (en) Digital demodulator and method therefor
CA2007149A1 (en) Homodyne down-converter with digital hilbert transform filtering
KR900012444A (ko) 효과적인 디지탈 주파수분할 다중화된 신호 수신기
BR9813414A (pt) Receptor com conversor analógico para digital sigma-delta
JPH07123243B2 (ja) アナログ信号エンコ−ド及びデコ−ド装置及び方法
KR900702667A (ko) 저감된 샘플링 비를 갖는 정보 신호를 얻는 방법
EP0884878A3 (en) Synchronization of frame, symbol clock, and carrier in multicarrier receivers
TW358157B (en) Front-end architecture for a measurement instrument
EP1079577A3 (en) Multicarrier modulation
AU618433B2 (en) Digital to amplitude modulated analog converter
KR900001253A (ko) 신호 샘플링 장치
CA1261924A (en) Digital zero if circuit
EP0997809A3 (en) Direct digital synthesizer
CA2131770A1 (en) Synchronization Adder Circuit
ATE291307T1 (de) Erfassung der abtastphase
Eerola et al. Direct conversion using lowpass sigma-delta modulation
US20020097806A1 (en) Baseband I and Q converter and method for performing baseband I and Q conversion
CN202772875U (zh) 一种基于软件无线电接收机的数字中频模块
JPH0416549Y2 (es)
ES2174421T3 (es) Metodo y dispositovo para muestrear señales analogicas.
JPH04253407A (ja) 復調回路
Haug et al. A DSP-based stereo decoder for automotive radio
JPH05152853A (ja) 検波器

Legal Events

Date Code Title Description
FA Abandonment or withdrawal