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
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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)
- General Physics & Mathematics (AREA)
- Mathematical Physics (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.
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)
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)
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 |
-
1998
- 1998-01-22 DE DE19802193A patent/DE19802193A1/de not_active Withdrawn
-
1999
- 1999-01-20 WO PCT/DE1999/000120 patent/WO1999038018A1/de active IP Right Grant
- 1999-01-20 AU AU27111/99A patent/AU2711199A/en not_active Abandoned
- 1999-01-20 AT AT99907253T patent/ATE214162T1/de active
- 1999-01-20 EP EP99907253A patent/EP1049937B1/de not_active Expired - Lifetime
- 1999-01-20 ES ES99907253T patent/ES2172982T3/es not_active Expired - Lifetime
- 1999-01-20 CA CA002319169A patent/CA2319169C/en not_active Expired - Fee Related
- 1999-01-20 DE DE59900929T patent/DE59900929D1/de not_active Expired - Lifetime
- 1999-01-20 US US09/600,649 patent/US6484112B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1049937A1 (de) | 2000-11-08 |
WO1999038018A1 (de) | 1999-07-29 |
ATE214162T1 (de) | 2002-03-15 |
CA2319169A1 (en) | 1999-07-29 |
AU2711199A (en) | 1999-08-09 |
EP1049937B1 (de) | 2002-03-06 |
DE59900929D1 (de) | 2002-04-11 |
DE19802193A1 (de) | 1999-07-29 |
CA2319169C (en) | 2009-10-06 |
US6484112B1 (en) | 2002-11-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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