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WO2008147769A3 - Spectrometre numerique large bande - Google Patents

Spectrometre numerique large bande Download PDF

Info

Publication number
WO2008147769A3
WO2008147769A3 PCT/US2008/064225 US2008064225W WO2008147769A3 WO 2008147769 A3 WO2008147769 A3 WO 2008147769A3 US 2008064225 W US2008064225 W US 2008064225W WO 2008147769 A3 WO2008147769 A3 WO 2008147769A3
Authority
WO
WIPO (PCT)
Prior art keywords
wideband signal
wideband
signal
dynamic range
spectral characteristic
Prior art date
Application number
PCT/US2008/064225
Other languages
English (en)
Other versions
WO2008147769A2 (fr
Inventor
Deepnarayan Gupta
Original Assignee
Hypres Inc
Deepnarayan Gupta
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
Priority claimed from US11/957,393 external-priority patent/US7876869B1/en
Application filed by Hypres Inc, Deepnarayan Gupta filed Critical Hypres Inc
Publication of WO2008147769A2 publication Critical patent/WO2008147769A2/fr
Publication of WO2008147769A3 publication Critical patent/WO2008147769A3/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
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/109—Means associated with receiver for limiting or suppressing noise or interference by improving strong signal performance of the receiver when strong unwanted signals are present at the receiver input
    • 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
    • H04B1/1036—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal with automatic suppression of narrow band noise or interference, e.g. by using tuneable notch filters
    • 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
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/71—Interference-related aspects the interference being narrowband interference

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
  • Spectrometry And Color Measurement (AREA)

Abstract

L'invention concerne un procédé de réduction des interférences, consistant : à recevoir un signal large bande contenant au moins une composante de grande amplitude; à modifier de façon adaptative le signal large bande par rapport à au moins une composante haute intensité, sans introduire sensiblement de distorsion non linéaire, tout en réduisant une plage dynamique résiduelle associée; et à numériser le signal large bande modifié pour capturer des informations décrivant au moins le signal haute intensité à une vitesse d'échantillonnage suffisante pour extraire des informations modulées présentes dans le signal large bande, au niveau d'une limite supérieure de la bande. Le système analyse une caractéristique spectrale du signal large bande et extrait des paramètres d'adaptation pour le filtrage adaptatif. Le système fournit ainsi à la fois une large plage dynamique nette et une opération large bande. Le numériseur et le filtre, et une partie de l'analyseur de caractéristiques spectrales, sont mis en œuvre dans une technologie de circuits supraconducteurs avec, par exemple, des composants de traitement de signaux numériques supraconducteurs basse température et des composants de filtrage analogiques supraconducteurs haute température.
PCT/US2008/064225 2007-05-23 2008-05-20 Spectrometre numerique large bande WO2008147769A2 (fr)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US93983507P 2007-05-23 2007-05-23
US60/939,835 2007-05-23
US11/957,389 2007-12-14
US11/957,393 US7876869B1 (en) 2007-05-23 2007-12-14 Wideband digital spectrometer
US11/957,389 US8045660B1 (en) 2007-05-23 2007-12-14 Wideband digital spectrometer
US11/957,393 2007-12-14
US11/957,391 2007-12-14
US11/957,391 US8130880B1 (en) 2007-05-23 2007-12-14 Wideband digital spectrometer

Publications (2)

Publication Number Publication Date
WO2008147769A2 WO2008147769A2 (fr) 2008-12-04
WO2008147769A3 true WO2008147769A3 (fr) 2009-02-12

Family

ID=40075726

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/064225 WO2008147769A2 (fr) 2007-05-23 2008-05-20 Spectrometre numerique large bande

Country Status (1)

Country Link
WO (1) WO2008147769A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009060925B3 (de) * 2009-12-23 2011-07-28 Perner, Petra, Dr.-Ing., 04275 Verfahren und Einrichtung zur automatischen Stoffbestimmung aus spektroskopischen Untersuchungen
US9020065B2 (en) 2012-01-16 2015-04-28 Telefonaktiebolaget L M Ericsson (Publ) Radio frequency digital filter group delay mismatch reduction
CN108614261B (zh) * 2018-05-18 2021-10-26 南京航空航天大学 一种组网雷达系统多目标跟踪下的辐射参数控制方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5396291A (en) * 1992-12-16 1995-03-07 Nec Corporation Picture signal processing system having improved quantizer
US5777512A (en) * 1996-06-20 1998-07-07 Tripath Technology, Inc. Method and apparatus for oversampled, noise-shaping, mixed-signal processing
KR100261072B1 (ko) * 1993-04-30 2000-07-01 윤종용 디지털 신호처리시스템

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5396291A (en) * 1992-12-16 1995-03-07 Nec Corporation Picture signal processing system having improved quantizer
KR100261072B1 (ko) * 1993-04-30 2000-07-01 윤종용 디지털 신호처리시스템
US5777512A (en) * 1996-06-20 1998-07-07 Tripath Technology, Inc. Method and apparatus for oversampled, noise-shaping, mixed-signal processing

Also Published As

Publication number Publication date
WO2008147769A2 (fr) 2008-12-04

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