AR067511A2 - Metodo y aparato para medir la relacion portadora a ruido en una senal recibida - Google Patents

Metodo y aparato para medir la relacion portadora a ruido en una senal recibida

Info

Publication number
AR067511A2
AR067511A2 ARP080102984A ARP080102984A AR067511A2 AR 067511 A2 AR067511 A2 AR 067511A2 AR P080102984 A ARP080102984 A AR P080102984A AR P080102984 A ARP080102984 A AR P080102984A AR 067511 A2 AR067511 A2 AR 067511A2
Authority
AR
Argentina
Prior art keywords
signal
layer
measuring
carrier
received signal
Prior art date
Application number
ARP080102984A
Other languages
English (en)
Inventor
Ernest C Chen
Original Assignee
Direct Group 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 Direct Group Inc filed Critical Direct Group Inc
Publication of AR067511A2 publication Critical patent/AR067511A2/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
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/20—Monitoring; Testing of receivers
    • H04B17/21—Monitoring; Testing of receivers for calibration; for correcting measurements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18515—Transmission equipment in satellites or space-based relays
    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0047—Decoding adapted to other signal detection operation
    • H04L1/0048—Decoding adapted to other signal detection operation in conjunction with detection of multiuser or interfering signals, e.g. iteration between CDMA or MIMO detector and FEC decoder
    • 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
    • H04L27/183—Multiresolution systems
    • 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
    • H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
    • 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
    • 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
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/366—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H04N17/004—Diagnosis, testing or measuring for television systems or their details for digital television systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0053—Closed loops
    • H04L2027/0061—Closed loops remodulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/455—Demodulation-circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Radio Relay Systems (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

Método para medir la relacion portadora a ruido en una senal recibida, que comprende los pasos de: recibir una senal modulada por desplazamiento de fase con una esquema de modulacion estratificada o en capas que tiene un primer estrato o capa que es no coherente con al menos un segundo estrato o capa de la senal modulada por desplazamiento de fase; procesar la senal modulada por desplazamiento de fase a través de un bucle para recuperacion de la portadora, para producir puntos de senal en la segunda capa relativos a nodos de senal ideal situados en la primer capa y determinar la medicion de la relacion portadora a ruido (CNR), a partir de una diferencia promedio entre los puntos de senal y los respectivos nodos de senal ideal. Método que comprende partir de a senal elevada a su enésima potencia, comparándose la proporcion de potencias entre los componentes de CC y CA de las senales potenciadas. Aparatos para medir la relacion portadora a ruido en una senal recibida, aplicando dichos métodos.
ARP080102984A 2004-08-05 2008-07-11 Metodo y aparato para medir la relacion portadora a ruido en una senal recibida AR067511A2 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/913,927 US7639759B2 (en) 2001-04-27 2004-08-05 Carrier to noise ratio estimations from a received signal

Publications (1)

Publication Number Publication Date
AR067511A2 true AR067511A2 (es) 2009-10-14

Family

ID=35295639

Family Applications (2)

Application Number Title Priority Date Filing Date
ARP050103280A AR050690A1 (es) 2004-08-05 2005-08-05 Estimaciones de la proporcion matematica entre la portadora y el ruido, a partir de una senal recibida
ARP080102984A AR067511A2 (es) 2004-08-05 2008-07-11 Metodo y aparato para medir la relacion portadora a ruido en una senal recibida

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ARP050103280A AR050690A1 (es) 2004-08-05 2005-08-05 Estimaciones de la proporcion matematica entre la portadora y el ruido, a partir de una senal recibida

Country Status (7)

Country Link
US (1) US7639759B2 (es)
EP (1) EP1624598A1 (es)
AR (2) AR050690A1 (es)
CA (1) CA2515167C (es)
IL (1) IL170106A (es)
NO (1) NO20053749L (es)
TW (1) TWI285034B (es)

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US7639759B2 (en) 2009-12-29
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AR050690A1 (es) 2006-11-15
TWI285034B (en) 2007-08-01
US20050008100A1 (en) 2005-01-13
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EP1624598A1 (en) 2006-02-08
IL170106A (en) 2012-02-29

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