WO1999018672A8 - Improved convergence in a digital signal averager - Google Patents

Improved convergence in a digital signal averager

Info

Publication number
WO1999018672A8
WO1999018672A8 PCT/US1998/019959 US9819959W WO9918672A8 WO 1999018672 A8 WO1999018672 A8 WO 1999018672A8 US 9819959 W US9819959 W US 9819959W WO 9918672 A8 WO9918672 A8 WO 9918672A8
Authority
WO
WIPO (PCT)
Prior art keywords
sub
convergence
offset
analog
slider
Prior art date
Application number
PCT/US1998/019959
Other languages
French (fr)
Other versions
WO1999018672A1 (en
Inventor
Dale A Gedcke
Jeffrey V Peck
Russell D Bingham
Rex C Trammell
Original Assignee
Eg & G Instr Inc
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 Eg & G Instr Inc filed Critical Eg & G Instr Inc
Priority to EP98948508A priority Critical patent/EP0943181A4/en
Priority to CA002273999A priority patent/CA2273999A1/en
Publication of WO1999018672A1 publication Critical patent/WO1999018672A1/en
Publication of WO1999018672A8 publication Critical patent/WO1999018672A8/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/06—Continuously compensating for, or preventing, undesired influence of physical parameters
    • H03M1/0617—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence
    • H03M1/0634—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence by averaging out the errors, e.g. using sliding scale
    • H03M1/0656—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence by averaging out the errors, e.g. using sliding scale in the time domain, e.g. using intended jitter as a dither signal
    • H03M1/0658—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence by averaging out the errors, e.g. using sliding scale in the time domain, e.g. using intended jitter as a dither signal by calculating a running average of a number of subsequent samples
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/06—Continuously compensating for, or preventing, undesired influence of physical parameters
    • H03M1/0602—Continuously compensating for, or preventing, undesired influence of physical parameters of deviations from the desired transfer characteristic
    • H03M1/0604—Continuously compensating for, or preventing, undesired influence of physical parameters of deviations from the desired transfer characteristic at one point, i.e. by adjusting a single reference value, e.g. bias or gain error

Abstract

A method for improving the speed of convergence to sub-least-significant-bit accuracy and precision in a digital signal averager when the measurements are averaged over many samples where the noise inherent in the signal is not large compared to 1 LSB. A slider offset circuit (10) implements the method which adds offsets to an analog input signal acquired from an analog sensor (20). The slider offset circuit (10) compensates for limitations in the resolution of an analog-to-digital converter (28) by adding a sub-least-significant-bit offset to the input signal. Similarly, the slider offset circuit (10) compensates for the differential non-linearity using a Gatti offset which are whole number multiples of the average voltage bin width. Speed of convergence to sub-LSB accuracy is further improved by employing non-consecutive increments in the two sliders (22, 24).
PCT/US1998/019959 1997-10-03 1998-09-25 Improved convergence in a digital signal averager WO1999018672A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP98948508A EP0943181A4 (en) 1997-10-03 1998-09-25 Improved convergence in a digital signal averager
CA002273999A CA2273999A1 (en) 1997-10-03 1998-09-25 Improved convergence in a digital signal averager

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US6093297P 1997-10-03 1997-10-03
US60/060,932 1997-10-03
US09/154,134 US6028543A (en) 1997-10-03 1998-09-16 Apparatus for improvement of the speed of convergence to sub-least-significant-bit accuracy and precision in a digital signal averager and method of use
US09/154,134 1998-09-16

Publications (2)

Publication Number Publication Date
WO1999018672A1 WO1999018672A1 (en) 1999-04-15
WO1999018672A8 true WO1999018672A8 (en) 1999-05-20

Family

ID=26740517

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/019959 WO1999018672A1 (en) 1997-10-03 1998-09-25 Improved convergence in a digital signal averager

Country Status (4)

Country Link
US (1) US6028543A (en)
EP (1) EP0943181A4 (en)
CA (1) CA2273999A1 (en)
WO (1) WO1999018672A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6094627A (en) * 1997-05-30 2000-07-25 Perkinelmer Instruments, Inc. High-performance digital signal averager
US7119342B2 (en) * 1999-02-09 2006-10-10 Syagen Technology Interfaces for a photoionization mass spectrometer
WO2001041427A1 (en) * 1999-12-06 2001-06-07 Dmi Biosciences, Inc. Noise reducing/resolution enhancing signal processing method and system
US6737642B2 (en) 2002-03-18 2004-05-18 Syagen Technology High dynamic range analog-to-digital converter
DE10356147A1 (en) * 2003-12-02 2005-06-30 Giesecke & Devrient Gmbh Digitization of a papillary structure
US8362431B2 (en) * 2005-03-15 2013-01-29 Mount Holyoke College Methods of thermoreflectance thermography
WO2006099453A1 (en) * 2005-03-15 2006-09-21 Massachusetts Institute Of Technology (Mit) High performance ccd-based thermoreflectance imaging using stochastic resonance
US7321847B1 (en) * 2006-05-05 2008-01-22 Analytica Of Branford, Inc. Apparatus and methods for reduction of coherent noise in a digital signal averager
US7463983B1 (en) 2007-05-25 2008-12-09 Thermo Finnigan Llc TOF with clock phase to time bin distribution
US9678123B2 (en) * 2015-05-12 2017-06-13 Keysight Technologies, Inc. System and method for image signal rejection
TWI693497B (en) * 2019-03-15 2020-05-11 新唐科技股份有限公司 Digital regulation system and control method thereof
JP7252492B2 (en) * 2019-07-25 2023-04-05 日本電信電話株式会社 Synchronous detection device, synchronous detection method and program
DE102020211321A1 (en) 2020-09-09 2022-03-10 Robert Bosch Gesellschaft mit beschränkter Haftung Device and method for converting an analog input signal into a digital signal value and sensor device

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3622765A (en) * 1969-06-27 1971-11-23 Varian Associates Method and apparatus for ensemble averaging repetitive signals
US3877022A (en) * 1973-05-14 1975-04-08 Weston Instruments Inc Enhancing resolution in analog-to-digital conversion by adding statistically controlled noise to the analog input signal
US4034367A (en) * 1974-02-28 1977-07-05 Yokogawa Electric Works, Ltd. Analog-to-digital converter utilizing a random noise source
US4144577A (en) * 1977-10-14 1979-03-13 The United States Of America As Represented By The Secretary Of The Air Force Integrated quantized signal smoothing processor
US4393372A (en) * 1982-03-08 1983-07-12 Itt Industries, Inc. Parallel analog-to-digital converter
US4490806A (en) * 1982-06-04 1984-12-25 Research Corporation High repetition rate transient recorder with automatic integration
EP0167412B1 (en) * 1984-07-06 1991-06-05 British Aerospace Analog-to-digital conversion
JPS62140518A (en) * 1985-12-13 1987-06-24 Advantest Corp A/d converter
IT1186477B (en) * 1985-12-19 1987-11-26 Sgs Microelettronica Spa METHOD AND APPARATUS FOR COMBINATION PLATE FOR MODULATION OF PULSE CODE HAVING A PERFECTED AUTO-ZERO CIRCUIT
US4866442A (en) * 1987-06-01 1989-09-12 Steim Joseph M Analog to digital converter employing delta-sigma modulation
US4947168A (en) * 1988-05-23 1990-08-07 Hughes Aircraft Company Subranging analog-to-digital converter with calibration
US5189418A (en) * 1992-04-16 1993-02-23 Hewlett-Packard Company Dither error correction
US5493298A (en) * 1993-03-01 1996-02-20 Hewlett-Packard Company Dithered analog-to-digital converter
US5825318A (en) * 1996-12-19 1998-10-20 Quantum Corporation Data and servo sampling in synchronous data detection channel

Also Published As

Publication number Publication date
CA2273999A1 (en) 1999-04-15
EP0943181A4 (en) 2003-05-14
EP0943181A1 (en) 1999-09-22
WO1999018672A1 (en) 1999-04-15
US6028543A (en) 2000-02-22

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