ES2002347A6 - Procedimiento y aparato para identificar los componentes de una senal - Google Patents
Procedimiento y aparato para identificar los componentes de una senalInfo
- Publication number
- ES2002347A6 ES2002347A6 ES8601928A ES8601928A ES2002347A6 ES 2002347 A6 ES2002347 A6 ES 2002347A6 ES 8601928 A ES8601928 A ES 8601928A ES 8601928 A ES8601928 A ES 8601928A ES 2002347 A6 ES2002347 A6 ES 2002347A6
- Authority
- ES
- Spain
- Prior art keywords
- signal
- frequencies
- frequency band
- alias filter
- results
- 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
Links
- 238000000034 method Methods 0.000 title abstract 3
- 238000001228 spectrum Methods 0.000 abstract 1
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L1/00—Devices along the route controlled by interaction with the vehicle or train
- B61L1/18—Railway track circuits
- B61L1/181—Details
- B61L1/187—Use of alternating current
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
- G01H1/003—Measuring characteristics of vibrations in solids by using direct conduction to the detector of rotating machines
-
- 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
- G01R23/165—Spectrum analysis; Fourier analysis using filters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
- H04L27/14—Demodulator circuits; Receiver circuits
- H04L27/156—Demodulator circuits; Receiver circuits with demodulation using temporal properties of the received signal, e.g. detecting pulse width
- H04L27/1566—Demodulator circuits; Receiver circuits with demodulation using temporal properties of the received signal, e.g. detecting pulse width using synchronous sampling
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Theoretical Computer Science (AREA)
- Data Mining & Analysis (AREA)
- Pure & Applied Mathematics (AREA)
- Computational Mathematics (AREA)
- Algebra (AREA)
- Computer Networks & Wireless Communication (AREA)
- Discrete Mathematics (AREA)
- Signal Processing (AREA)
- Mechanical Engineering (AREA)
- Databases & Information Systems (AREA)
- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Measuring Frequencies, Analyzing Spectra (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
PROCEDIMIENTO Y APARATO PARA IDENTIFICAR LOS COMPONENTES DE UNA SEÑAL, USANDO METODOS DE TRANSFORMADA RAPIDA DE FOURIER PARA ANALIZAR LOS RESULTADOS DE RENDIMIENTO DE LOS ESPECTROS DE FRECUENCIAS DE LAS SEÑALES PARTIENDO DE FRECUENCIAS CERO HACIA ARRIBA. LA SEÑAL QUE SE HA DE ANALIZAR SE HACE PASAR A TRAVES DE UN FILTRO ANTIALIAS Y SE RECOGEN LOS DATOS DE TRANSFORMADAS INICIALES MEDIANTE SUBMUESTREO. EN UN RECEPTOR DE UN CIRCUITO DE VIA DE FERROCARRIL, QUE HA DE IDENTIFICAR UNA FRECUENCIA PORTADORA PREDETERMINADA O SEÑAL FSK, EL FILTRO ANTIALIAS SE ELIGE PARA EXCLUIR AQUELLAS FRECUENCIAS QUE NO ESTEN EN UNA BANDA DE FRECUENCIAS QUE INCLUYA LA SEÑAL PARTICULAR DE LA VIA, DE MANERA QUE NO EXISTA AMBIGUVEDAD EN LOS RESULTADOS DE LAS TRANSFORMADAS CALCULADAS.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08522845A GB2180377B (en) | 1985-09-16 | 1985-09-16 | Method and apparatus for identifying the components of a signal |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2002347A6 true ES2002347A6 (es) | 1988-08-01 |
Family
ID=10585231
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES8601928A Expired ES2002347A6 (es) | 1985-09-16 | 1986-09-16 | Procedimiento y aparato para identificar los componentes de una senal |
Country Status (10)
Country | Link |
---|---|
US (1) | US4777605A (es) |
EP (1) | EP0229443B1 (es) |
JP (1) | JPS6267467A (es) |
CN (1) | CN86106042A (es) |
AU (1) | AU594600B2 (es) |
DE (1) | DE3674565D1 (es) |
ES (1) | ES2002347A6 (es) |
GB (1) | GB2180377B (es) |
NZ (1) | NZ216852A (es) |
SG (1) | SG36489G (es) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH673550A5 (es) * | 1987-09-29 | 1990-03-15 | Zellweger Telecomm Ag | |
US4904930A (en) * | 1988-09-16 | 1990-02-27 | Rockwell International Corporation | Method of carrier frequency estimation |
US4922195A (en) * | 1988-12-19 | 1990-05-01 | Westinghouse Electric Corp. | Extraneous frequency detector |
GB2232494B (en) * | 1989-05-24 | 1993-01-27 | Marconi Instruments Ltd | Frequency spectrum determination using interpolation |
US5185701A (en) * | 1989-11-03 | 1993-02-09 | Trw Vehicle Safety Systems Inc. | Method for determining frequency components in a vehicle crash |
US5034891A (en) * | 1989-11-03 | 1991-07-23 | Trw Vehicle Safety Systems Inc. | Method and apparatus for sensing a vehicle crash with frequency domain boost |
US5073860A (en) * | 1989-11-07 | 1991-12-17 | Trw Vehicle Safety Systems Inc. | Method and apparatus for sensing a vehicle crash in real time using frequency domain analysis |
US5036467A (en) * | 1990-04-04 | 1991-07-30 | Trw Vehicle Safety Systems Inc. | Method and apparatus for sensing a vehicle crash in real time using a frequency domain integration and summation algorithm |
US5065322A (en) * | 1990-04-04 | 1991-11-12 | Trw Vehicle Safety Systems Inc. | Method and apparatus for sensing a vehicle crash in real time using a frequency domain summation algorithm |
US5347464A (en) * | 1992-09-22 | 1994-09-13 | Basic Measuring Instruments | High-pass filter for enhancing the resolution of AC power line harmonic measurements |
US5666382A (en) * | 1994-02-28 | 1997-09-09 | Abb Daimler-Benz Transportation (North America) Inc. | Method and apparatus for communicating in the presence of power and propulsion system interference |
GB2300502B (en) * | 1995-04-11 | 1998-05-27 | Int Mobile Satellite Org | An electronic circuit for and a method of decoding a signal |
US5808902A (en) * | 1996-05-23 | 1998-09-15 | Basic Measuring Instruments | Power quality transducer for use with supervisory control systems |
CN100483138C (zh) * | 2004-12-24 | 2009-04-29 | 陈耀钧 | 单周期波形检测分析方法及系统 |
US8458636B1 (en) | 2009-03-18 | 2013-06-04 | Pulsic Limited | Filling vacant areas of an integrated circuit design |
CN101949977B (zh) * | 2010-06-02 | 2012-12-05 | 华南理工大学 | 基于盲源分离的铁路移频信号抗干扰方法 |
US8213577B2 (en) * | 2010-08-31 | 2012-07-03 | Fluke Corporation | Phone test set modem |
US8171797B2 (en) * | 2010-09-23 | 2012-05-08 | General Electric Company | Sideband energy ratio method for gear mesh fault detection |
CN103144656B (zh) * | 2011-05-16 | 2015-07-01 | 北京和利时系统工程有限公司 | 列控系统车载设备及解调轨道电路信号的方法 |
US10977772B1 (en) | 2018-09-25 | 2021-04-13 | National Technology & Engineering Solutions Of Sandia, Llc | Unmanned aircraft system (UAS) detection and assessment via temporal intensity aliasing |
RU2760744C1 (ru) * | 2020-12-04 | 2021-11-30 | Акционерное общество "ИРКОС" | Способ измерения частоты модуляции |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IN158693B (es) * | 1981-12-22 | 1987-01-03 | Westinghouse Brake & Signal | |
US4726069A (en) * | 1984-05-18 | 1988-02-16 | Stevenson Carl R | A muiti-mode modulation and demodulation system and method |
US4730257A (en) * | 1985-01-25 | 1988-03-08 | Szeto Lai Wan M | Apparatus for analyzing signals, to obtain parameters of constituents |
-
1985
- 1985-09-16 GB GB08522845A patent/GB2180377B/en not_active Expired
-
1986
- 1986-07-03 US US06/882,054 patent/US4777605A/en not_active Expired - Fee Related
- 1986-07-08 EP EP86305250A patent/EP0229443B1/en not_active Expired - Lifetime
- 1986-07-08 DE DE8686305250T patent/DE3674565D1/de not_active Revoked
- 1986-07-15 NZ NZ216852A patent/NZ216852A/xx unknown
- 1986-09-12 CN CN198686106042A patent/CN86106042A/zh active Pending
- 1986-09-15 AU AU62661/86A patent/AU594600B2/en not_active Ceased
- 1986-09-16 JP JP61217861A patent/JPS6267467A/ja active Pending
- 1986-09-16 ES ES8601928A patent/ES2002347A6/es not_active Expired
-
1989
- 1989-06-09 SG SG364/89A patent/SG36489G/en unknown
Also Published As
Publication number | Publication date |
---|---|
SG36489G (en) | 1989-10-13 |
GB2180377B (en) | 1989-02-15 |
AU594600B2 (en) | 1990-03-08 |
EP0229443B1 (en) | 1990-09-26 |
GB2180377A (en) | 1987-03-25 |
AU6266186A (en) | 1987-03-19 |
GB8522845D0 (en) | 1985-10-23 |
NZ216852A (en) | 1989-03-29 |
CN86106042A (zh) | 1987-04-01 |
EP0229443A1 (en) | 1987-07-22 |
JPS6267467A (ja) | 1987-03-27 |
US4777605A (en) | 1988-10-11 |
DE3674565D1 (de) | 1990-10-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
SA6 | Expiration date (snapshot 920101) |
Free format text: 2006-09-16 |
|
FD1A | Patent lapsed |
Effective date: 20060918 |