IT1259012B - Metodo e circuiti per la riduzione della potenza di picco del segnale filtrato trasmesso in un collegamento di tipo numerico - Google Patents

Metodo e circuiti per la riduzione della potenza di picco del segnale filtrato trasmesso in un collegamento di tipo numerico

Info

Publication number
IT1259012B
IT1259012B ITMI921819A ITMI921819A IT1259012B IT 1259012 B IT1259012 B IT 1259012B IT MI921819 A ITMI921819 A IT MI921819A IT MI921819 A ITMI921819 A IT MI921819A IT 1259012 B IT1259012 B IT 1259012B
Authority
IT
Italy
Prior art keywords
reducing
peak power
filtered signal
type connection
circuits
Prior art date
Application number
ITMI921819A
Other languages
English (en)
Inventor
Arnaldo Spalvieri
Original Assignee
Alcatel Italia
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 Alcatel Italia filed Critical Alcatel Italia
Priority to ITMI921819A priority Critical patent/IT1259012B/it
Publication of ITMI921819A0 publication Critical patent/ITMI921819A0/it
Priority to NO932469A priority patent/NO305269B1/no
Priority to DE69326298T priority patent/DE69326298T2/de
Priority to EP93111722A priority patent/EP0584534B1/en
Priority to US08/097,675 priority patent/US5493587A/en
Priority to JP5185308A priority patent/JPH06164664A/ja
Publication of ITMI921819A1 publication Critical patent/ITMI921819A1/it
Application granted granted Critical
Publication of IT1259012B publication Critical patent/IT1259012B/it

Links

Classifications

    • 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
    • H04L27/3405—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power
    • H04L27/3411—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power reducing the peak to average power ratio or the mean power of the constellation; Arrangements for increasing the shape gain of a signal set

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Dc Digital Transmission (AREA)

Abstract

La presente invenzione riguarda un metodo per la riduzione della potenza di picco del segnale all'uscita del filtro di trasmissione di un collegamento di tipo numerico, ad esempio a microonde.Il trovato si caratterizza per l'utilizzo di una codifica in trasmissione e una decodifica in ricezione, finalizzate alla riduzione, della potenza di picco del segnale filtrato.In una forma di realizzazione -peraltro non limitativa- il codificatore ed il decodificatore possono essere realizzati mediante semplici mappe inseribili nella parte di banda base del sistema.
ITMI921819A 1992-07-27 1992-07-27 Metodo e circuiti per la riduzione della potenza di picco del segnale filtrato trasmesso in un collegamento di tipo numerico IT1259012B (it)

Priority Applications (6)

Application Number Priority Date Filing Date Title
ITMI921819A IT1259012B (it) 1992-07-27 1992-07-27 Metodo e circuiti per la riduzione della potenza di picco del segnale filtrato trasmesso in un collegamento di tipo numerico
NO932469A NO305269B1 (no) 1992-07-27 1993-07-07 FremgangsmÕte for Õ sende og motta numeriske signaler
DE69326298T DE69326298T2 (de) 1992-07-27 1993-07-22 Verfahren und Einrichtung zur Verminderung der Spitzenleistung von Datenfolgen
EP93111722A EP0584534B1 (en) 1992-07-27 1993-07-22 Method and apparatus for reducing the peak power of data sequences
US08/097,675 US5493587A (en) 1992-07-27 1993-07-27 Method and circuits for reducing the peak power of the filtered signal transmitted in a digital link
JP5185308A JPH06164664A (ja) 1992-07-27 1993-07-27 デジタルリンク中の送信されフィルタされた信号のピ−ク電力を減少する方法および回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI921819A IT1259012B (it) 1992-07-27 1992-07-27 Metodo e circuiti per la riduzione della potenza di picco del segnale filtrato trasmesso in un collegamento di tipo numerico

Publications (3)

Publication Number Publication Date
ITMI921819A0 ITMI921819A0 (it) 1992-07-27
ITMI921819A1 ITMI921819A1 (it) 1994-01-27
IT1259012B true IT1259012B (it) 1996-03-11

Family

ID=11363749

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI921819A IT1259012B (it) 1992-07-27 1992-07-27 Metodo e circuiti per la riduzione della potenza di picco del segnale filtrato trasmesso in un collegamento di tipo numerico

Country Status (6)

Country Link
US (1) US5493587A (it)
EP (1) EP0584534B1 (it)
JP (1) JPH06164664A (it)
DE (1) DE69326298T2 (it)
IT (1) IT1259012B (it)
NO (1) NO305269B1 (it)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1526446A3 (en) * 1991-07-08 2007-04-04 Seiko Epson Corporation Extensible RISC microprocessor architecture
IT1273695B (it) * 1994-07-28 1997-07-09 Alcatel Italia Metodo e circuiti per la trasmissione e la ricezione di segnali numerici nel quale si riduce la potenza di picco del segnale filtrato trasmesso compatibili con tecniche di codifica note
US5793797A (en) * 1995-05-09 1998-08-11 Unisys Corporation Data transmisson system with a low peak-to-average power ratio based on distorting small amplitude signals
US5621762A (en) * 1995-06-12 1997-04-15 Motorola, Inc. Radio with peak power and bandwidth efficient modulation
DE69636981T2 (de) * 1995-11-29 2007-12-06 Koninklijke Philips Electronics N.V. Übertragungssystem für ein nichtlineares übertragungsmedium
US5894498A (en) * 1997-02-26 1999-04-13 Motorola, Inc. Method and apparatus for analyzing a composite carrier signal
DE19808993C2 (de) * 1998-03-03 2003-12-18 Fraunhofer Ges Forschung Verfahren zur Spitzenwertreduktion bei Einträger-modulierten oder Mehrträger-modulierten, digitalen Sendesignalen
US6163570A (en) 1998-05-11 2000-12-19 Conexant Systems, Inc. Methods and apparatus for verifying transmit power levels in a signal point limited transmission system
US6452978B1 (en) * 1999-02-11 2002-09-17 Tioga Technologies Inc. Combined shaping and peak-to-average reduction for single carrier modulation systems
WO2001035591A2 (en) * 1999-11-09 2001-05-17 Aware, Inc. Par reduction by carriers phase randomization in multicarrier communications
US6961369B1 (en) 1999-11-09 2005-11-01 Aware, Inc. System and method for scrambling the phase of the carriers in a multicarrier communications system
IT1317976B1 (it) * 2000-06-16 2003-07-21 Siemens Inf & Comm Networks Metodo e sistema di trasmissione e ricezione alle microonde di segnaliad ampia dinamica di livello nell'inviluppo di modulazione
AUPQ820000A0 (en) * 2000-06-20 2000-07-13 Berangi, R. Peak power reduction schemes for multi-code cdma and critically sampled complex gaussian signals
WO2001099279A1 (en) * 2000-06-20 2001-12-27 Prescient Networks Pty Ltd Signal peak reduction circuit for non-constant envelope modulation signals
US7170952B2 (en) 2001-07-02 2007-01-30 Powerwave Technologies, Inc. System and method for post filtering peak power reduction in communications systems
US7095798B2 (en) 2001-08-02 2006-08-22 Powerwave Technologies, Inc. System and method for post filtering peak power reduction in multi-carrier communications systems
US7054385B2 (en) * 2001-10-22 2006-05-30 Tropian, Inc. Reduction of average-to-minimum power ratio in communications signals
US8331490B2 (en) 2001-10-22 2012-12-11 Panasonic Corporation Methods and apparatus for conditioning communications signals based on detection of high-frequency events in polar domain
US20070211829A1 (en) * 2001-10-22 2007-09-13 Matsushita Electric Industrial Co., Ltd. Method and apparatus for pulse optimization for non-linear filtering
FR2836513B1 (fr) * 2002-02-25 2005-12-02 Renault Vehicules Ind Ligne d'echappement et vehicule a moteur ainsi equipe
US6892057B2 (en) 2002-08-08 2005-05-10 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for reducing dynamic range of a power amplifier
US7848446B2 (en) * 2006-09-27 2010-12-07 Telefonaktiebolaget L M Ericsson (Publ) Reduction of peak-to-average-power ratio in a telecommunications system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4959842A (en) * 1988-04-13 1990-09-25 Codex Corporation Signal constellations
AU630417B2 (en) * 1989-02-16 1992-10-29 Codex Corporation Trellis shaping for modulation systems
US5159610A (en) * 1989-05-12 1992-10-27 Codex Corporation Trellis precoding for modulation systems
US5095497A (en) * 1989-10-02 1992-03-10 At & T Bell Laboratories Technique for achieving the full coding gain of encoded digital signals
US5493586A (en) * 1991-03-28 1996-02-20 British Telecommunications Public Limited Company TCM scheme with fractional bit rates, framing signals and constellation shaping

Also Published As

Publication number Publication date
JPH06164664A (ja) 1994-06-10
EP0584534B1 (en) 1999-09-08
NO932469L (no) 1994-01-28
NO932469D0 (no) 1993-07-07
NO305269B1 (no) 1999-04-26
ITMI921819A1 (it) 1994-01-27
ITMI921819A0 (it) 1992-07-27
US5493587A (en) 1996-02-20
DE69326298D1 (de) 1999-10-14
DE69326298T2 (de) 2000-03-23
EP0584534A1 (en) 1994-03-02

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19950629