WO2007135640A3 - Method and system for detecting narrowband signals using a receiver with a wideband frontend - Google Patents

Method and system for detecting narrowband signals using a receiver with a wideband frontend Download PDF

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Publication number
WO2007135640A3
WO2007135640A3 PCT/IB2007/051897 IB2007051897W WO2007135640A3 WO 2007135640 A3 WO2007135640 A3 WO 2007135640A3 IB 2007051897 W IB2007051897 W IB 2007051897W WO 2007135640 A3 WO2007135640 A3 WO 2007135640A3
Authority
WO
WIPO (PCT)
Prior art keywords
bandwidth
probability
frequency domain
domain components
receiver
Prior art date
Application number
PCT/IB2007/051897
Other languages
French (fr)
Other versions
WO2007135640A2 (en
Inventor
Dagnachew Birru
Original Assignee
Koninkl Philips Electronics Nv
Dagnachew Birru
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 Koninkl Philips Electronics Nv, Dagnachew Birru filed Critical Koninkl Philips Electronics Nv
Priority to JP2009510610A priority Critical patent/JP2009538026A/en
Priority to CN2007800180750A priority patent/CN101449477B/en
Priority to US12/301,304 priority patent/US8233566B2/en
Priority to KR1020087027799A priority patent/KR101431255B1/en
Priority to EP07735961A priority patent/EP2025068A2/en
Publication of WO2007135640A2 publication Critical patent/WO2007135640A2/en
Publication of WO2007135640A3 publication Critical patent/WO2007135640A3/en

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
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/71—Interference-related aspects the interference being narrowband interference
    • 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
    • H04B1/719—Interference-related aspects

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Circuits Of Receivers In General (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A system (100) and method (300) detect the presence of a narrowband signal having a bandwidth ΔF2 in a wideband frequency channel having a bandwidth ΔF1>ΔF2. The method (300) includes digitizing (310) a signal received in the frequency channel; transforming (320) the digitized signal into N digital frequency domain components; averaging (330) the power spectrum of the N digital frequency domain components over a plurality of samples; filtering (340) the averaged power spectrum of the N digital frequency domain components with a filter having M non-zero values spanning a bandwidth, ΔF3, where N>M and ΔF1>ΔF3; computing (350) a mean, μk, a modified standard deviation, βk, and a peak value, PMAX of the filtered, averaged power; and detecting (360) the presence of the narrowband whenever PMAX > (k1*μk)+(k2*βk), where k1 and k2 are selected to provide a probability of detection, a probability of missed detection, and a probability of false alarm.
PCT/IB2007/051897 2006-05-18 2007-05-17 Method and system for detecting narrowband signals using a receiver with a wideband frontend WO2007135640A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2009510610A JP2009538026A (en) 2006-05-18 2007-05-17 Method and system for detecting narrowband signals using a receiver with a wideband front end
CN2007800180750A CN101449477B (en) 2006-05-18 2007-05-17 Method and system for detecting narrowband signals using a receiver with a wideband frontend
US12/301,304 US8233566B2 (en) 2006-05-18 2007-05-17 Method and system for detecting narrowband signals using a receiver with a wideband frontend
KR1020087027799A KR101431255B1 (en) 2006-05-18 2007-05-17 Method and system for detecting narrowband signals using a receiver with a wideband frontend
EP07735961A EP2025068A2 (en) 2006-05-18 2007-05-17 Method and system for detecting narrowband signals using a receiver with a wideband frontend

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US80144906P 2006-05-18 2006-05-18
US60/801,449 2006-05-18

Publications (2)

Publication Number Publication Date
WO2007135640A2 WO2007135640A2 (en) 2007-11-29
WO2007135640A3 true WO2007135640A3 (en) 2008-01-24

Family

ID=38611093

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2007/051897 WO2007135640A2 (en) 2006-05-18 2007-05-17 Method and system for detecting narrowband signals using a receiver with a wideband frontend

Country Status (6)

Country Link
US (1) US8233566B2 (en)
EP (1) EP2025068A2 (en)
JP (1) JP2009538026A (en)
KR (1) KR101431255B1 (en)
CN (1) CN101449477B (en)
WO (1) WO2007135640A2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102263598A (en) * 2010-05-25 2011-11-30 陈喆 Easily realized and effective cognitive radio frequency spectrum sensing method
CN102316551B (en) * 2010-06-29 2015-04-01 中兴通讯股份有限公司 Method and mobile terminal for achieving rapid frequency scanning
CN102263601B (en) * 2011-06-09 2014-01-08 中国工程物理研究院电子工程研究所 Multi-signal detecting method for broadband
US9125158B2 (en) * 2012-02-06 2015-09-01 Qualcomm Incorporated Wideband detection of narrowband trigger signals
US20140213197A1 (en) * 2013-01-31 2014-07-31 Wei An Signal detection using a wide/narrow-band rf transceiver
CN104618284B (en) * 2014-12-29 2018-09-11 大唐移动通信设备有限公司 A kind of digital pre-distortion processing method and device
US9781675B2 (en) 2015-12-03 2017-10-03 Qualcomm Incorporated Detecting narrow band signals in wide-band interference
CN106850093A (en) * 2017-02-09 2017-06-13 武汉米风通信技术有限公司 Internet of Things ultra-narrow band signal detection method that ultra-narrow band is wireless

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US6118805A (en) * 1998-01-30 2000-09-12 Motorola, Inc. Method and apparatus for performing frequency hopping adaptation
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JP3477454B2 (en) * 2001-03-30 2003-12-10 旭化成株式会社 Wireless communication system and wireless communication method
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DANIJELA CABRIC, MIKE S. W. CHEN, DAVID A. SOBEL, STANLEY WANG, JING YANG, AND ROBERT W. BRODERSEN: "Novel Radio Architectures for UWB, 60 GHz, and Cognitive Wireless Systems", EURASIP JOURNAL ON WIRELESS COMMUNICATIONS AND NETWORKING, vol. 2006, 1 April 2006 (2006-04-01), New York, USA, pages 1 - 18, XP002456981, Retrieved from the Internet <URL:http://www.hindawi.com/GetPDF.aspx?doi=10.1155/WCN/2006/17957> [retrieved on 20071030] *
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Also Published As

Publication number Publication date
KR20090010057A (en) 2009-01-28
WO2007135640A2 (en) 2007-11-29
CN101449477B (en) 2013-06-19
JP2009538026A (en) 2009-10-29
US8233566B2 (en) 2012-07-31
US20090185641A1 (en) 2009-07-23
EP2025068A2 (en) 2009-02-18
KR101431255B1 (en) 2014-08-21
CN101449477A (en) 2009-06-03

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