ES2181550A1 - Selector de portadoras en modulaciones ofdm (multiplexacion por division de frencuencia ortogonal). - Google Patents

Selector de portadoras en modulaciones ofdm (multiplexacion por division de frencuencia ortogonal).

Info

Publication number
ES2181550A1
ES2181550A1 ES200002240A ES200002240A ES2181550A1 ES 2181550 A1 ES2181550 A1 ES 2181550A1 ES 200002240 A ES200002240 A ES 200002240A ES 200002240 A ES200002240 A ES 200002240A ES 2181550 A1 ES2181550 A1 ES 2181550A1
Authority
ES
Spain
Prior art keywords
ofdm
modulation
division multiplexing
frequency division
orthogonal frequency
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.)
Granted
Application number
ES200002240A
Other languages
English (en)
Other versions
ES2181550B1 (es
Inventor
Saez Roberto Llorente
Zaldivar Francisco Jo Martinez
Sendra Javier Marti
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.)
Universidad Politecnica de Valencia
Original Assignee
Universidad Politecnica de Valencia
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 Universidad Politecnica de Valencia filed Critical Universidad Politecnica de Valencia
Priority to ES200002240A priority Critical patent/ES2181550B1/es
Publication of ES2181550A1 publication Critical patent/ES2181550A1/es
Application granted granted Critical
Publication of ES2181550B1 publication Critical patent/ES2181550B1/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2649—Demodulators
    • H04L27/265—Fourier transform demodulators, e.g. fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators

Abstract

Selector de portadoras en modulaciones OFDM (multiplexación por división de frecuencia ortogonal). Un circuito selector de portadoras contiguas de entre el conjunto total de una señal con modulación OFDM (Orthogonal Frequency Division Multiplexing), en el que se realiza la multiplicación de la señal OFDM recibida, por un tono complejo de frecuencia igual a la de la portadora considerada como central del subconjunto, y a continuación, realiza un filtrado paso-bajo con ancho de banda proporcional al número de portadoras que se desean seleccionar, y por último muestrea la señal, antes de entregarla a un demodulador OFDM, con una frecuencia de muestreo igualmente proporcional al número de portadoras a seleccionar.
ES200002240A 2000-09-06 2000-09-06 Selector de portadoras en modulaciones ofdm (multiplexacion por division de frencuencia ortogonal). Expired - Lifetime ES2181550B1 (es)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES200002240A ES2181550B1 (es) 2000-09-06 2000-09-06 Selector de portadoras en modulaciones ofdm (multiplexacion por division de frencuencia ortogonal).

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200002240A ES2181550B1 (es) 2000-09-06 2000-09-06 Selector de portadoras en modulaciones ofdm (multiplexacion por division de frencuencia ortogonal).

Publications (2)

Publication Number Publication Date
ES2181550A1 true ES2181550A1 (es) 2003-02-16
ES2181550B1 ES2181550B1 (es) 2003-12-16

Family

ID=8494929

Family Applications (1)

Application Number Title Priority Date Filing Date
ES200002240A Expired - Lifetime ES2181550B1 (es) 2000-09-06 2000-09-06 Selector de portadoras en modulaciones ofdm (multiplexacion por division de frencuencia ortogonal).

Country Status (1)

Country Link
ES (1) ES2181550B1 (es)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0656706A2 (en) * 1993-11-12 1995-06-07 Kabushiki Kaisha Toshiba Synchronisation of OFDM signals
WO1997008877A1 (en) * 1995-08-31 1997-03-06 Usa Digital Radio Partners, L.P. Am compatible digital waveform demodulation using a dual fft
EP0772330A2 (en) * 1995-10-30 1997-05-07 Sony Corporation Receiver and method for receiving OFDM signals
WO1998053572A1 (en) * 1997-05-17 1998-11-26 Aware, Inc. Improved method for partially modulating and demodulating data in a multi-carrier transmission system
WO2000016506A1 (en) * 1998-09-15 2000-03-23 Usa Digital Radio, Inc. Method and apparatus for am compatible digital broadcasting with a periodic training sequence

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0656706A2 (en) * 1993-11-12 1995-06-07 Kabushiki Kaisha Toshiba Synchronisation of OFDM signals
WO1997008877A1 (en) * 1995-08-31 1997-03-06 Usa Digital Radio Partners, L.P. Am compatible digital waveform demodulation using a dual fft
EP0772330A2 (en) * 1995-10-30 1997-05-07 Sony Corporation Receiver and method for receiving OFDM signals
WO1998053572A1 (en) * 1997-05-17 1998-11-26 Aware, Inc. Improved method for partially modulating and demodulating data in a multi-carrier transmission system
WO2000016506A1 (en) * 1998-09-15 2000-03-23 Usa Digital Radio, Inc. Method and apparatus for am compatible digital broadcasting with a periodic training sequence

Also Published As

Publication number Publication date
ES2181550B1 (es) 2003-12-16

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