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WO1992001992A1 - Dispositif de calcul pour etablir la moyenne de signaux numerique analyses - Google Patents

Dispositif de calcul pour etablir la moyenne de signaux numerique analyses Download PDF

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Publication number
WO1992001992A1
WO1992001992A1 PCT/EP1991/001280 EP9101280W WO9201992A1 WO 1992001992 A1 WO1992001992 A1 WO 1992001992A1 EP 9101280 W EP9101280 W EP 9101280W WO 9201992 A1 WO9201992 A1 WO 9201992A1
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WO
WIPO (PCT)
Prior art keywords
computers
averaging
signals
mean
inputs
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.)
Ceased
Application number
PCT/EP1991/001280
Other languages
German (de)
English (en)
Inventor
Alfred Kraker
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.)
Siemens AG Oesterreich
Siemens AG
Siemens Corp
Original Assignee
Siemens AG Oesterreich
Siemens AG
Siemens Corp
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 Siemens AG Oesterreich, Siemens AG, Siemens Corp filed Critical Siemens AG Oesterreich
Publication of WO1992001992A1 publication Critical patent/WO1992001992A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/003—Measuring mean values of current or voltage during a given time interval
    • 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
    • G06F17/18—Complex mathematical operations for evaluating statistical data, e.g. average values, frequency distributions, probability functions, regression analysis

Definitions

  • Computing device for averaging sampled digital signals
  • the invention relates to a computing device for the continuous formation of the mean values over a predetermined quantity of successive sampled signals in digital signal representation.
  • An important statistical variable is, for example, the mean square of the amplitude, which represents the power of the signal in the case of stationary signals.
  • mean values consist of the sum of a specified set of values divided by the number (N) of values in this set. So the ari of consecutive 3 ends dig 3 or the mean of the ampl of consecutive dig) 2,
  • these large numbers of values to be temporarily stored also require a correspondingly high storage capacity of the computer.
  • a limited computing speed also proves to be a problem, which either results in a lack of accuracy as a result of the division by N, or which can only be remedied by increased effort by means of double-exact representation of the numbers.
  • SU-PS 618.747 describes a digital-based device for averaging, which works with a counter that receives pulses with different weightings and different. Time delay can be supplied. This device is intended for use in computers and is used to solve a special task that occurs there.
  • the object of the invention is to create a computing device which overcomes the above-mentioned difficulties and achieves this in that the inputs of a plurality of averaging computers cycle in cyclical order to the outputs of one with its input the line carrying the digital signals, which is switched at each sampling time, is connected, and that the outputs of the computers are connected to a summing element providing the respective overall mean value via multiplier elements.
  • the entire computing work is divided into several computers and the difficulty due to the limitation of the computing speed is eliminated.
  • this division can be achieved using two computers, the inputs of which alternate using one
  • digital low-pass filters can be used according to a further feature of the invention, the cut-off frequency of which is equal to the reciprocal of the time period specified for the overall mean value formation and multiplied by the number of low-pass filters provided overall.
  • the basic mode of operation of the circuit according to the invention is explained with reference to FIG. 1 of the drawing, while special circuits are shown in FIGS. 2 and 3.
  • the computing device serves to form the running mean values over a predetermined quantity of successive sampled signals in digital signal representation.
  • the principle of the invention explained below with reference to FIG. 1 consists in the fact that the computing work required for the ongoing averaging is divided over a number of averaging calculators R1 ... R ⁇ . This division takes place in such a way that these computers Rl ... Rn are connected with their inputs at successive sampling times in cyclical order to the line L (data bus) carrying the signals to be scanned.
  • a switch U is symbolically shown for this purpose, which connects the inputs of the computers Rl ... Rn in sequence with the line L.
  • Each individual computer Rl ... Rn thus only has to deal with the nth part of the sample values to be processed for the formation of the overall mean value.
  • Ml ... Mn are multiplication elements connected to the computers Rl ... Rn, which multiply the respective results of the computers Rl ... Rn by a weighting factor which serves to standardize the overall result. In the case of averaging, this weighting factor is equal to -. For the averaging in each of the computers Rl ... Rn (j ⁇ ) samples are used. The output values of the multipliers Ml ... Mn are finally fed to a summing element S which continuously forms the sum of all the individual summands offered and outputs this as the total mean.
  • FIG. 2 A simplified computing device is shown in FIG. 2, namely one with only two averaging computers R1 and R2, the inputs of which alternate by means of an electronic one Changeover switch ul to which the line L carrying the signals are connected.
  • the changeover switch ul is actuated between two scans, • so that the "even” samples are supplied to one computer and the "odd” samples to the other computer R1 or R2.
  • FIG. 3 A further development of the selective switching off of computers to the line L which can be achieved by contact switching is shown in FIG. 3.
  • Four computers R1 ... R4 are provided here, which are arranged in cyclical order by means of a contact pyramid consisting of the switching contacts ul, u2 and u3 can be connected to line L.
  • each of the computers R1 ... Rn can thus be replaced by such a digital low-pass filter.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Data Mining & Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Operations Research (AREA)
  • Probability & Statistics with Applications (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Algebra (AREA)
  • Evolutionary Biology (AREA)
  • Databases & Information Systems (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Bioinformatics & Computational Biology (AREA)
  • Complex Calculations (AREA)

Abstract

Pour la détermination en continu de la moyenne de signaux analysés, en représentation numérique, il est prévu un dispositif de calcul répartissant sur plusieurs calculateurs le processus de calcul à effectuer pour déterminer la moyenne. Les entrées d'une pluralité de calculateurs (R1...Rn) déterminant la moyenne sont raccordées cycliquement aux sorties d'un commutateur (U), dont l'entrée est placée sur la ligne (L) amenant les signaux. Les sorties des calculateurs (R1...Rn) sont raccordées, par l'intermédiaire d'éléments multiplicateurs (M1...Mn) établissant des facteurs de pondération, à un élément additionneur (S) fournissant la moyenne totale correspondante.
PCT/EP1991/001280 1990-07-18 1991-07-09 Dispositif de calcul pour etablir la moyenne de signaux numerique analyses Ceased WO1992001992A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA1517/90 1990-07-18
AT151790A AT397161B (de) 1990-07-18 1990-07-18 Recheneinrichtung zur mittelwertbildung abgetasteter digitalsignale

Publications (1)

Publication Number Publication Date
WO1992001992A1 true WO1992001992A1 (fr) 1992-02-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1991/001280 Ceased WO1992001992A1 (fr) 1990-07-18 1991-07-09 Dispositif de calcul pour etablir la moyenne de signaux numerique analyses

Country Status (2)

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AT (1) AT397161B (fr)
WO (1) WO1992001992A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2178202C2 (ru) * 1998-12-28 2002-01-10 Ермаков Владимир Филиппович Статистический анализатор функций моментов случайных процессов

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3388377A (en) * 1964-04-16 1968-06-11 Navy Usa Method and apparatus for digital data processing
US4031364A (en) * 1975-11-10 1977-06-21 Hughes Aircraft Company Multiple moment video detector
DE3036858A1 (de) * 1980-09-30 1982-05-19 Siemens AG, 1000 Berlin und 8000 München Kaskadierbares mikroprozessorgesteuertes system zum erfassen und auswerten digitaler messwerte, insbesondere statischer messwerte
EP0351003A1 (fr) * 1988-07-12 1990-01-17 Trt Telecommunications Radioelectriques Et Telephoniques Dispositif pour déterminer des objets contrastés dans une image
WO1990003582A1 (fr) * 1988-09-30 1990-04-05 Zion Educational Foundation Mesure de tension, courant et frequence de formes d'onde non standards

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU627482A1 (ru) * 1975-12-12 1978-10-05 Предприятие П/Я Р-6303 Устройство дл определени дисперсии
SU618747A1 (ru) * 1976-03-23 1978-08-05 Красноярский Политехнический Институт Цифровое усредн ющее устройство

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3388377A (en) * 1964-04-16 1968-06-11 Navy Usa Method and apparatus for digital data processing
US4031364A (en) * 1975-11-10 1977-06-21 Hughes Aircraft Company Multiple moment video detector
DE3036858A1 (de) * 1980-09-30 1982-05-19 Siemens AG, 1000 Berlin und 8000 München Kaskadierbares mikroprozessorgesteuertes system zum erfassen und auswerten digitaler messwerte, insbesondere statischer messwerte
EP0351003A1 (fr) * 1988-07-12 1990-01-17 Trt Telecommunications Radioelectriques Et Telephoniques Dispositif pour déterminer des objets contrastés dans une image
WO1990003582A1 (fr) * 1988-09-30 1990-04-05 Zion Educational Foundation Mesure de tension, courant et frequence de formes d'onde non standards

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NUCLEAR INSTRUMENTS AND METHODS Bd. 95, Nr. 3, September 1971, AMSTERDAM, NL Seiten 497 - 507; C. FERNANDES: 'Echantillonneur multicanal numérique ultra-rapide pour l'extraction d'un signal dans un bruit de fond' siehe Seite 497, Spalte 2, Zeile 22 - Zeile 26 siehe Seite 498, Spalte 1, Zeile 12 - Zeile 19 siehe Seite 499, Spalte 1, Zeile 33 - Zeile 38 SA 49069 030siehe Seite 499, Spalte 2, Zeile 3 - Zeile 13 siehe Seite 501, Spalte 2, Zeile 5 - Zeile 29 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2178202C2 (ru) * 1998-12-28 2002-01-10 Ермаков Владимир Филиппович Статистический анализатор функций моментов случайных процессов

Also Published As

Publication number Publication date
AT397161B (de) 1994-02-25
ATA151790A (de) 1993-06-15

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