NO973324L - Mottaker for spektrum-analyse - Google Patents

Mottaker for spektrum-analyse

Info

Publication number
NO973324L
NO973324L NO973324A NO973324A NO973324L NO 973324 L NO973324 L NO 973324L NO 973324 A NO973324 A NO 973324A NO 973324 A NO973324 A NO 973324A NO 973324 L NO973324 L NO 973324L
Authority
NO
Norway
Prior art keywords
signal
measured
input signal
detected
level
Prior art date
Application number
NO973324A
Other languages
English (en)
Other versions
NO973324D0 (no
Inventor
Mikko Weckstroem
Original Assignee
Nokia Telecommunications Oy
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 Nokia Telecommunications Oy filed Critical Nokia Telecommunications Oy
Publication of NO973324D0 publication Critical patent/NO973324D0/no
Publication of NO973324L publication Critical patent/NO973324L/no

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/16—Spectrum analysis; Fourier analysis

Landscapes

  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Superheterodyne Receivers (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Circuits Of Receivers In General (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Abstract

En mottaker for spektrum-analyse omfatter minst en blander (230), hvor et radiofrekvent (f,) inngangssignal som skal måles, blandes med en oscillatorfrekvens (fj) som genereres i en spenningsstyrt oscillator. I en detektor (214) detekteres nivået for et inngangssignal som skal måles, etter at signalet er overført til en lavere frekvens. Bruk av en logaritmisk forsterker kan unngås ved å dirigere det detekterte signalet til en avgjørelsesanordning (215) som, som reaksjon på en forandring i det detekterte inngangssignalets nivå, frembringer en styrespenning (V¿¿) som er proporsjonal med størrelsen og retningen av forandringen. Denne spenningen beordrer en justerbar attenuator (210) til å dempe signalet som skal måles, slik at det detekterte inngangssignalets nivå i det hovedsakelige forblir konstant. Attenuatorens dempning, målt i desibel, er lineært avhengig av styrespenningen, slik at verdiene av styresignalet representerer amplitudeverdiene direkte, ( 210 230 280 ., 217 ^ 231 -J \i ''cdllbr. f *VCJ»RE1.SES- BLOKX levering av dlvlfiorer MltCROPROSESSOR OVERVÅKNING AV OVER- SltRIDELSE AV DYNA,MISK OMRADE ^233
NO973324A 1995-01-19 1997-07-18 Mottaker for spektrum-analyse NO973324L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI950233A FI100921B (fi) 1995-01-19 1995-01-19 Spektrinmittausvastaanotin
PCT/FI1996/000037 WO1996022540A1 (en) 1995-01-19 1996-01-17 A receiver for spectrum analysis

Publications (2)

Publication Number Publication Date
NO973324D0 NO973324D0 (no) 1997-07-18
NO973324L true NO973324L (no) 1997-09-18

Family

ID=8542399

Family Applications (1)

Application Number Title Priority Date Filing Date
NO973324A NO973324L (no) 1995-01-19 1997-07-18 Mottaker for spektrum-analyse

Country Status (10)

Country Link
US (1) US5917315A (no)
EP (1) EP0877945B1 (no)
JP (1) JPH10512671A (no)
CN (1) CN1086030C (no)
AT (1) ATE265688T1 (no)
AU (1) AU694307B2 (no)
DE (1) DE69632341T2 (no)
FI (1) FI100921B (no)
NO (1) NO973324L (no)
WO (1) WO1996022540A1 (no)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6112065A (en) * 1997-11-14 2000-08-29 Ericsson Inc. Low to higher if conversion for active filtered limited IF systems
JP4089003B2 (ja) * 1998-04-01 2008-05-21 ソニー株式会社 受信機及び受信方法
US7783299B2 (en) 1999-01-08 2010-08-24 Trueposition, Inc. Advanced triggers for location-based service applications in a wireless location system
US6184829B1 (en) * 1999-01-08 2001-02-06 Trueposition, Inc. Calibration for wireless location system
DE19926101B4 (de) * 1999-06-08 2004-04-08 Rohde & Schwarz Gmbh & Co. Kg Anordnung zur Fehlerkompensation bei der Umsetzung von Hochfrequenzsignalen ins Basisband
KR100366298B1 (ko) * 2000-01-27 2002-12-31 한국전자통신연구원 극초단펄스 스펙트럼 분석방법
DE10025837A1 (de) * 2000-05-25 2001-12-13 Rohde & Schwarz Breitbandempfänger
US6744247B2 (en) 2000-07-28 2004-06-01 Rohde & Schwarz Gmbh & Co. Kg Method and measuring device for measuring the spectra in adjacent channels
TW453041B (en) * 2000-10-12 2001-09-01 Ind Tech Res Inst Analog phase frequency detecting device and method
US6741844B2 (en) * 2001-11-27 2004-05-25 Motorola, Inc. Receiver for audio enhancement and method therefor
EP1483444B1 (de) * 2002-02-01 2005-12-28 Koenig & Bauer Aktiengesellschaft Verfahren und vorrichtung zur verminderung von schwingungen an rotierenden bauteilen
WO2003075632A2 (en) * 2002-03-06 2003-09-18 Paradigm Wireless Systems, Inc. Rf amplifier system with interface to provide a computer readable spectral depiction of the re output
RU2242768C1 (ru) * 2003-03-31 2004-12-20 Федеральное государственное унитарное предприятие "НИИ "Вектор" Измеритель спектральных параметров радиосигналов
US7116092B2 (en) * 2004-07-28 2006-10-03 International Business Machines Corporation Integrated spectrum analyzer circuits and methods for providing on-chip diagnostics
JP2008527378A (ja) * 2005-01-11 2008-07-24 イノベーション エンジニアリング、エルエルシー 負荷に供給されたｒｆ電力およびその負荷の複素インピーダンスを検出する方法
CN100592190C (zh) * 2005-11-23 2010-02-24 鸿富锦精密工业（深圳）有限公司 照明模块
US8213957B2 (en) 2009-04-22 2012-07-03 Trueposition, Inc. Network autonomous wireless location system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3876946A (en) * 1973-10-31 1975-04-08 Singer Co Radio frequency digital fourier analyzer
JPS5580061A (en) * 1978-12-12 1980-06-16 Advantest Corp Frequency measuring apparatus
US4430611A (en) * 1981-07-29 1984-02-07 The United States Of America As Represented By The United States Department Of Energy Frequency spectrum analyzer with phase-lock
JPS59157575A (ja) * 1983-02-27 1984-09-06 Anritsu Corp スペクトラムアナライザ
GB8825748D0 (en) * 1988-11-03 1989-05-17 Rolls Royce Plc Signal analysis
US5101509A (en) * 1990-09-14 1992-03-31 Ford Motor Company Rf filter alignment using digital processor clock
US5262957A (en) * 1990-11-09 1993-11-16 Global Communications, Inc. Inexpensive portable RF spectrum analyzer with calibration features
US5731841A (en) * 1994-05-25 1998-03-24 Wavephore, Inc. High performance data tuner for video systems

Also Published As

Publication number Publication date
ATE265688T1 (de) 2004-05-15
AU4488196A (en) 1996-08-07
FI950233A7 (fi) 1996-07-20
JPH10512671A (ja) 1998-12-02
FI100921B (fi) 1998-03-13
US5917315A (en) 1999-06-29
WO1996022540A1 (en) 1996-07-25
EP0877945B1 (en) 2004-04-28
AU694307B2 (en) 1998-07-16
DE69632341D1 (de) 2004-06-03
CN1086030C (zh) 2002-06-05
CN1169186A (zh) 1997-12-31
EP0877945A1 (en) 1998-11-18
NO973324D0 (no) 1997-07-18
FI950233A0 (fi) 1995-01-19
DE69632341T2 (de) 2005-05-12

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Legal Events

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