MXPA05012716A - Procedimiento de reduccion de la varianza de la estimacion de la relacion senal a ruido de una senal con modulacion diferencial en fase y coherente en amplitud. - Google Patents

Procedimiento de reduccion de la varianza de la estimacion de la relacion senal a ruido de una senal con modulacion diferencial en fase y coherente en amplitud.

Info

Publication number
MXPA05012716A
MXPA05012716A MXPA05012716A MXPA05012716A MXPA05012716A MX PA05012716 A MXPA05012716 A MX PA05012716A MX PA05012716 A MXPA05012716 A MX PA05012716A MX PA05012716 A MXPA05012716 A MX PA05012716A MX PA05012716 A MXPA05012716 A MX PA05012716A
Authority
MX
Mexico
Prior art keywords
signal
variance
noise ratio
ratio estimate
reducing
Prior art date
Application number
MXPA05012716A
Other languages
English (en)
Inventor
Juan Carlos Riveiro Insua
Original Assignee
Diseno Sistemas Silicio Sa
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 Diseno Sistemas Silicio Sa filed Critical Diseno Sistemas Silicio Sa
Publication of MXPA05012716A publication Critical patent/MXPA05012716A/es

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/26—Measuring noise figure; Measuring signal-to-noise ratio
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Radio Transmission System (AREA)

Abstract

Se caracteriza porque para calcular las muestras de la potencia de ruido que afecta al sistema, se combinan los errores de amplitud y de incremento de fase obtenidos en el receptor realizando una traslacion de dichos errores (1) y (4) al punto correspondiente del primer anillo (6) de la constelacion como si hubiera sido este el transmitido y sin que sufran ninguna modificacion, para posteriormente calcular el modulo al cuadrado del vector de error (9). Minimiza e iguala la varianza de las muestras obtenidas para los diferentes valores, pares e impares, de bits por portadora que el sistema utilice. Reduce la varianza de la estimacion de la relacion senal a ruido en un sistema de comunicaciones digital multiusuario. Dicha estimacion es necesaria para seleccionar el numero de bits por portadora para adaptarse al canal y como informacion de apoyo en caso de utilizar un receptor con diversidad.
MXPA05012716A 2003-05-26 2004-05-19 Procedimiento de reduccion de la varianza de la estimacion de la relacion senal a ruido de una senal con modulacion diferencial en fase y coherente en amplitud. MXPA05012716A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200301229A ES2221568B2 (es) 2003-05-26 2003-05-26 Procedimiento de reduccion de la varianza de la estimacion de la relacion señal a ruido de una señal con modulacion diferencial en fase y coherente en amplitud.
PCT/ES2004/000223 WO2004105301A1 (es) 2003-05-26 2004-05-19 Procedimiento de reducción de la varianza de la estimación de la relación señal a ruido de una señal con modulación diferencial en fase y cohenrente en amplitud

Publications (1)

Publication Number Publication Date
MXPA05012716A true MXPA05012716A (es) 2006-02-08

Family

ID=33462376

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA05012716A MXPA05012716A (es) 2003-05-26 2004-05-19 Procedimiento de reduccion de la varianza de la estimacion de la relacion senal a ruido de una senal con modulacion diferencial en fase y coherente en amplitud.

Country Status (14)

Country Link
US (1) US7433428B2 (es)
EP (1) EP1633072B1 (es)
JP (1) JP4714806B2 (es)
KR (1) KR101078440B1 (es)
CN (1) CN100531024C (es)
AU (1) AU2004240362A1 (es)
BR (1) BRPI0410719A (es)
CA (1) CA2527332A1 (es)
EA (1) EA009251B1 (es)
ES (1) ES2221568B2 (es)
IL (1) IL172141A (es)
MX (1) MXPA05012716A (es)
TW (1) TWI279097B (es)
WO (1) WO2004105301A1 (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2221568B2 (es) 2003-05-26 2005-07-16 Diseño De Sistemas En Silicio, S.A. Procedimiento de reduccion de la varianza de la estimacion de la relacion señal a ruido de una señal con modulacion diferencial en fase y coherente en amplitud.
US7570689B2 (en) * 2005-02-14 2009-08-04 Interdigital Technology Corporation Advanced receiver with sliding window block linear equalizer
US7414581B2 (en) * 2006-01-06 2008-08-19 Honeywell International Inc. Method for improved signal to noise ratio estimation
US8238481B2 (en) * 2008-07-02 2012-08-07 Qualcomm Incorporated Blind channel estimation for PSK and D-PSK modulated multicarrier communication systems
GB2502556B (en) * 2012-05-30 2017-08-02 Imagination Tech Ltd Noise variance estimation and interference detection
US8878620B2 (en) * 2012-08-24 2014-11-04 Tektronix, Inc. Phase coherent playback in and arbitrary waveform generator
CN103095636B (zh) * 2012-12-07 2015-06-03 桂林电子科技大学 差分球调制方法
CN104917706B (zh) * 2014-03-10 2018-08-10 联想(北京)有限公司 一种信噪比估计方法及电子设备
RU2598693C1 (ru) * 2015-03-25 2016-09-27 ООО "Топкон Позишионинг Системс" Способ и устройство для оценки текущего отношения сигнал-шум
KR101595830B1 (ko) * 2015-09-21 2016-02-24 대한민국 단파 통신 두절의 판단을 위한 단파 신호 모니터링 방법 및 장치

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0134339B1 (ko) * 1993-06-02 1998-04-27 김광호 디 디(dd) 알고리즘 제어방법
US5809074A (en) * 1996-11-08 1998-09-15 Lucent Technologies Inc. Technique for improving the blind convergence of an adaptive equalizer using a transition algorithm
EP0993147A3 (en) * 1998-09-30 2004-01-14 Mitsubishi Materials Corporation Radio server system
JP3776716B2 (ja) * 2000-11-17 2006-05-17 株式会社東芝 直交周波数分割多重伝送信号受信装置
US6735264B2 (en) * 2001-08-31 2004-05-11 Rainmaker Technologies, Inc. Compensation for non-linear distortion in a modem receiver
US7756421B2 (en) * 2002-10-03 2010-07-13 Ciena Corporation Electrical domain compensation of non-linear effects in an optical communications system
FR2847101B1 (fr) * 2002-11-08 2005-09-23 Thales Sa Procede et modem pour la synchronisation et la poursuite de phase
ES2221568B2 (es) 2003-05-26 2005-07-16 Diseño De Sistemas En Silicio, S.A. Procedimiento de reduccion de la varianza de la estimacion de la relacion señal a ruido de una señal con modulacion diferencial en fase y coherente en amplitud.

Also Published As

Publication number Publication date
EA200501864A1 (ru) 2006-06-30
BRPI0410719A (pt) 2006-06-20
US20060159201A1 (en) 2006-07-20
EP1633072A1 (en) 2006-03-08
US7433428B2 (en) 2008-10-07
KR101078440B1 (ko) 2011-11-01
JP4714806B2 (ja) 2011-06-29
TWI279097B (en) 2007-04-11
JP2007501579A (ja) 2007-01-25
EA009251B1 (ru) 2007-12-28
AU2004240362A1 (en) 2004-12-02
CN1830172A (zh) 2006-09-06
KR20060059883A (ko) 2006-06-02
EP1633072B1 (en) 2017-10-25
ES2221568B2 (es) 2005-07-16
CA2527332A1 (en) 2004-12-02
CN100531024C (zh) 2009-08-19
ES2221568A1 (es) 2004-12-16
WO2004105301A1 (es) 2004-12-02
TW200507490A (en) 2005-02-16
IL172141A (en) 2011-04-28
IL172141A0 (en) 2006-04-10

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