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WO2001095508A3 - Appareil, systeme et procede de modulation a une position parmi plusieurs dans un systeme de communications radio a impulsions - Google Patents

Appareil, systeme et procede de modulation a une position parmi plusieurs dans un systeme de communications radio a impulsions Download PDF

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Publication number
WO2001095508A3
WO2001095508A3 PCT/US2001/018332 US0118332W WO0195508A3 WO 2001095508 A3 WO2001095508 A3 WO 2001095508A3 US 0118332 W US0118332 W US 0118332W WO 0195508 A3 WO0195508 A3 WO 0195508A3
Authority
WO
WIPO (PCT)
Prior art keywords
impulse radio
radio signal
timing
communications system
signal
Prior art date
Application number
PCT/US2001/018332
Other languages
English (en)
Other versions
WO2001095508A2 (fr
Inventor
James L Richards
Vernon R Brethour
Jack T Metheney
Original Assignee
Time Domain Corp
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 Time Domain Corp filed Critical Time Domain Corp
Priority to AU2001265381A priority Critical patent/AU2001265381A1/en
Publication of WO2001095508A2 publication Critical patent/WO2001095508A2/fr
Publication of WO2001095508A3 publication Critical patent/WO2001095508A3/fr

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
    • H04B1/69—Spread spectrum techniques
    • H04B1/7163—Spread spectrum techniques using impulse radio
    • H04B1/71637—Receiver aspects
    • 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
    • H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4902—Pulse width modulation; Pulse position modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/7163—Spread spectrum techniques using impulse radio
    • H04B1/7176—Data mapping, e.g. modulation

Landscapes

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

Abstract

L'invention concerne un appareil, des systèmes et procédés d'émission et de réception de signaux radio à impulsions modulés d'une parmi plusieurs positions. Un récepteur radio à impulsions, destiné à démoduler un signal radio à impulsions reçu modulé selon une logique de modulation d'une de N positions, N étant le nombre de positions différentes possibles où une impulsion peut être située à l'intérieur de chaque cadre temporel du signal radio à impulsions, comprend un générateur de synchronisation, au moins un échantillonneur et un détecteur de données. Le générateur de synchronisation produit N signaux de synchronisation, chacun de ces signaux étant temporellement séparé par au moins ½ de la largeur des impulsions du signal radio à impulsions radio reçu. Les échantillonneurs sont déclenchés pour échantillonner le signal radio à impulsions reçu selon N signaux de synchronisation et pour produire une première à une Nième sorties d'échantillonneur. Le détecteur de données produit des décisions de démodulation fondées sur la première à la Nième sorties de l'échantillonneur.
PCT/US2001/018332 2000-06-07 2001-06-07 Appareil, systeme et procede de modulation a une position parmi plusieurs dans un systeme de communications radio a impulsions WO2001095508A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001265381A AU2001265381A1 (en) 2000-06-07 2001-06-07 Apparatus, system and method for one-of-many positions modulation in an impulse radio communications system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US20985700P 2000-06-07 2000-06-07
US60/209,857 2000-06-07

Publications (2)

Publication Number Publication Date
WO2001095508A2 WO2001095508A2 (fr) 2001-12-13
WO2001095508A3 true WO2001095508A3 (fr) 2002-06-06

Family

ID=22780600

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/018332 WO2001095508A2 (fr) 2000-06-07 2001-06-07 Appareil, systeme et procede de modulation a une position parmi plusieurs dans un systeme de communications radio a impulsions

Country Status (2)

Country Link
AU (1) AU2001265381A1 (fr)
WO (1) WO2001095508A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006073371A1 (fr) * 2005-01-03 2006-07-13 Matsushita Electric Industrial Co., Ltd. Procede et appareil de mappage d'impulsions dans la modulation radio a impulsions ('impulse radio' ou ir)
GB2548735B (en) 2015-01-12 2021-02-17 Halliburton Energy Services Inc Wave reflection suppression in pulse modulation telemetry

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0766393A2 (fr) * 1995-09-29 1997-04-02 Sharp Kabushiki Kaisha Démodulateur d'impulsions en position
US5677927A (en) * 1994-09-20 1997-10-14 Pulson Communications Corporation Ultrawide-band communication system and method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5677927A (en) * 1994-09-20 1997-10-14 Pulson Communications Corporation Ultrawide-band communication system and method
EP0766393A2 (fr) * 1995-09-29 1997-04-02 Sharp Kabushiki Kaisha Démodulateur d'impulsions en position

Also Published As

Publication number Publication date
WO2001095508A2 (fr) 2001-12-13
AU2001265381A1 (en) 2001-12-17

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