ES2172982T3 - Procedimiento para estimar la frecuencia de una señal de tiempo. - Google Patents

Procedimiento para estimar la frecuencia de una señal de tiempo.

Info

Publication number
ES2172982T3
ES2172982T3 ES99907253T ES99907253T ES2172982T3 ES 2172982 T3 ES2172982 T3 ES 2172982T3 ES 99907253 T ES99907253 T ES 99907253T ES 99907253 T ES99907253 T ES 99907253T ES 2172982 T3 ES2172982 T3 ES 2172982T3
Authority
ES
Spain
Prior art keywords
frequency
time signal
maximum
solution
estimate
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
ES99907253T
Other languages
English (en)
Inventor
Frank Scheppach
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Airbus Defence and Space GmbH
Original Assignee
EADS Deutschland GmbH
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 EADS Deutschland GmbH filed Critical EADS Deutschland GmbH
Application granted granted Critical
Publication of ES2172982T3 publication Critical patent/ES2172982T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
    • G06F17/141—Discrete Fourier transforms
    • 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)
  • Engineering & Computer Science (AREA)
  • Data Mining & Analysis (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Discrete Mathematics (AREA)
  • Databases & Information Systems (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Algebra (AREA)
  • Complex Calculations (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

Procedimiento para estimar la frecuencia de una señal de tiempo por medio de una transformación discreta de Fourier de la señal de tiempo e interpolación entre puntos de apoyo del espectro DFT, en donde la señal de tiempo se filtra con una función de ventana de Harnming, caracterizado porque se realiza la interpolación según una solución matemáticamente cerrada, porque se efectúa la interpolación sobre la base de la relación cuantitativa del máximo principal Sw(P) y del máximo secundario Sw(P+1) en el espectro DFT = jSw(` 1)j jSw (`)j en donde se determina una distancia de corrección d (-1< d < +1) contra la línea espectral del máximo principal a partir de la relación = j(-2+4d-2d 2 +a(-2-8d+4d 2 ))(d+1)j j-2d+a(4d 2 -2)(d-2)j con a = 0,54, y en donde se calcula la distancia de corrección d según la solución para d, unívoca para el rango 0 1, pormedio dela relación entre y d.
ES99907253T 1998-01-22 1999-01-20 Procedimiento para estimar la frecuencia de una señal de tiempo. Expired - Lifetime ES2172982T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19802193A DE19802193A1 (de) 1998-01-22 1998-01-22 Verfahren zur Schätzung der Frequenz eines Zeitsignals

Publications (1)

Publication Number Publication Date
ES2172982T3 true ES2172982T3 (es) 2002-10-01

Family

ID=7855264

Family Applications (1)

Application Number Title Priority Date Filing Date
ES99907253T Expired - Lifetime ES2172982T3 (es) 1998-01-22 1999-01-20 Procedimiento para estimar la frecuencia de una señal de tiempo.

Country Status (8)

Country Link
US (1) US6484112B1 (es)
EP (1) EP1049937B1 (es)
AT (1) ATE214162T1 (es)
AU (1) AU2711199A (es)
CA (1) CA2319169C (es)
DE (2) DE19802193A1 (es)
ES (1) ES2172982T3 (es)
WO (1) WO1999038018A1 (es)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001099715A (ja) 1999-09-30 2001-04-13 Ando Electric Co Ltd 波長計のデータ処理装置、及びそのデータ処理方法
US6775629B2 (en) * 2001-06-12 2004-08-10 National Instruments Corporation System and method for estimating one or more tones in an input signal
JP2003240842A (ja) * 2002-02-14 2003-08-27 Murata Mfg Co Ltd レーダ
DE10309262B4 (de) * 2003-03-03 2007-08-23 Rohde & Schwarz Gmbh & Co. Kg Verfahren zum Schätzen der Frequenz und/oder der Phase einer digitalen Signalfolge
US20070073797A1 (en) * 2005-09-29 2007-03-29 Lockheed Martin Corporation Recursive method for solving the inexact greatest common divisor problem
US7444128B1 (en) 2006-01-19 2008-10-28 The United States Of America As Represented By The Secretary Of The National Security Agency Method of estimating a high frequency carrier signal
US8407020B1 (en) * 2010-09-28 2013-03-26 The United States Of America As Represented By The Secretary Of The Navy Fast method to search for linear frequency-modulated signals
JP5988863B2 (ja) * 2012-12-27 2016-09-07 パナソニック株式会社 受信装置及び復調方法
US10274596B2 (en) * 2016-02-19 2019-04-30 Honeywell International Inc. Method and system for FMCW radar altimeter system height measurement resolution improvement
CN110133738B (zh) * 2019-05-14 2020-06-09 东南大学 基于IpDFT的质子磁力仪自由感应衰减信号的频率估计方法
DE102021123693B3 (de) 2021-09-14 2023-02-02 H-Next Gmbh Verfahren und Vorrichtung zur Verarbeitung von Signalen

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4630228A (en) 1982-06-28 1986-12-16 Systron-Donner Corporation Transmission line analyzer for automatically identifying the severities and locations of multiple mismatches
FI82337C (fi) * 1989-05-29 1991-02-11 Nokia Data Systems Foerfarande foer bestaemmande av grundvaerden foer en transversalekvalisators koefficienter.
JP2808954B2 (ja) * 1991-11-13 1998-10-08 国際電信電話株式会社 無変調信号検出及び周波数引き込み装置
US5406842A (en) * 1993-10-07 1995-04-18 Motorola, Inc. Method and apparatus for material level measurement using stepped frequency microwave signals
JP3305496B2 (ja) 1994-04-28 2002-07-22 株式会社アドバンテスト 高分解能周波数分析装置を用いたドップラ補償装置
JP3454989B2 (ja) 1995-10-18 2003-10-06 セイコーエプソン株式会社 計測データに対する補正方法

Also Published As

Publication number Publication date
DE19802193A1 (de) 1999-07-29
US6484112B1 (en) 2002-11-19
EP1049937A1 (de) 2000-11-08
WO1999038018A1 (de) 1999-07-29
DE59900929D1 (de) 2002-04-11
EP1049937B1 (de) 2002-03-06
CA2319169C (en) 2009-10-06
ATE214162T1 (de) 2002-03-15
CA2319169A1 (en) 1999-07-29
AU2711199A (en) 1999-08-09

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