SE435971B - Digital spektralanalysatoranordning - Google Patents

Digital spektralanalysatoranordning

Info

Publication number
SE435971B
SE435971B SE7903656A SE7903656A SE435971B SE 435971 B SE435971 B SE 435971B SE 7903656 A SE7903656 A SE 7903656A SE 7903656 A SE7903656 A SE 7903656A SE 435971 B SE435971 B SE 435971B
Authority
SE
Sweden
Prior art keywords
digital
output
perfect
window
frequencies
Prior art date
Application number
SE7903656A
Other languages
English (en)
Swedish (sv)
Other versions
SE7903656L (sv
Inventor
J-P Houdard
Original Assignee
Materiel Telephonique
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 Materiel Telephonique filed Critical Materiel Telephonique
Publication of SE7903656L publication Critical patent/SE7903656L/
Publication of SE435971B publication Critical patent/SE435971B/sv

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
    • H04Q1/457—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling with conversion of multifrequency signals into digital signals
    • H04Q1/4575—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling with conversion of multifrequency signals into digital signals which are transmitted in digital form

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Complex Calculations (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
SE7903656A 1978-04-27 1979-04-25 Digital spektralanalysatoranordning SE435971B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7812477A FR2424669A1 (fr) 1978-04-27 1978-04-27 Dispositifs analyseurs numeriques de spectres

Publications (2)

Publication Number Publication Date
SE7903656L SE7903656L (sv) 1979-10-28
SE435971B true SE435971B (sv) 1984-10-29

Family

ID=9207648

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7903656A SE435971B (sv) 1978-04-27 1979-04-25 Digital spektralanalysatoranordning

Country Status (14)

Country Link
US (1) US4286326A (it)
AU (1) AU4637179A (it)
BE (1) BE875865A (it)
BR (1) BR7902551A (it)
CA (1) CA1120104A (it)
DE (1) DE2917285A1 (it)
ES (1) ES479955A1 (it)
FR (1) FR2424669A1 (it)
GB (1) GB2020070B (it)
GR (1) GR66643B (it)
IT (1) IT1113914B (it)
SE (1) SE435971B (it)
SU (1) SU1107760A3 (it)
TR (1) TR20399A (it)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4408284A (en) * 1981-01-19 1983-10-04 The United States Of America As Represented By The Secretary Of The Navy Signal processing system
FR2512306A1 (fr) * 1981-08-27 1983-03-04 Telecommunications Sa Dispositif numerique de reconnaissance de frequences
DE3273552D1 (en) * 1982-06-25 1986-11-06 Ibm Tone receiver for a digital data transmission system
US4608647A (en) * 1983-10-24 1986-08-26 E-Systems, Inc. Method and apparatus for determining the noise power ratio (NPR) of a unit under test
US4783754A (en) * 1984-07-02 1988-11-08 Motorola, Inc. Preprocessor for spectral pattern classification systems
EP0243561B1 (en) * 1986-04-30 1991-04-10 International Business Machines Corporation Tone detection process and device for implementing said process
US4839842A (en) * 1987-07-24 1989-06-13 Advanced Micro Devices Digital tone detection and generation
GB2207770B (en) * 1987-08-06 1991-09-11 Nat Research And Dev Corp The Apparatus and methods for spectral analysis of electrical materials,components and devices
US4980849A (en) * 1989-02-28 1990-12-25 Raytheon Company Method and apparatus for autoregressive model simulation
US5301123A (en) * 1990-01-30 1994-04-05 Board Of Governors For Higher Education, State Of Rhode Island And Providence Plantations Zero crossing based spectrum analyzer and method
US5262957A (en) * 1990-11-09 1993-11-16 Global Communications, Inc. Inexpensive portable RF spectrum analyzer with calibration features
DE4225401C1 (de) * 1992-07-29 1994-05-26 Siemens Ag Verfahren zum Bestimmen spektraler Anteile eines Signals und Vorrichtung zur Durchführung des Verfahrens
CA2116043C (en) * 1994-02-21 1997-09-23 Alexander F. Tulai Programmable digital call progress tone detector
US5910906A (en) * 1996-07-25 1999-06-08 Northern Telecom Limited Digital single-frequency tone detection in presence of aliases
KR100317598B1 (ko) 1999-03-13 2001-12-22 박찬구 라플라스 변환 임피던스 측정방법 및 측정장치
US6681191B1 (en) * 1999-12-21 2004-01-20 Tektronix, Inc. Frequency domain analysis system for a time domain measurement instrument
EP1421395A2 (en) * 2001-08-22 2004-05-26 Wavecrest Corporation Method and apparatus for measuring a waveform
US6751564B2 (en) * 2002-05-28 2004-06-15 David I. Dunthorn Waveform analysis
US20070027675A1 (en) * 2005-07-26 2007-02-01 Lecroy Corporation Spectrum analyzer control in an oscilloscope

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3466431A (en) * 1966-12-30 1969-09-09 Weston Instruments Inc D.c. power spectrum and fourier transform analyzer
US3573446A (en) * 1967-06-06 1971-04-06 Univ Iowa State Res Found Inc Real-time digital spectrum analyzer utilizing the fast fourier transform
US3881097A (en) * 1973-05-14 1975-04-29 Weston Instruments Inc Fully digital spectrum analyzer using time compression and discrete fourier transform techniques
US3920978A (en) * 1974-02-25 1975-11-18 Sanders Associates Inc Spectrum analyzer
US3903401A (en) * 1974-06-27 1975-09-02 Bell Telephone Labor Inc Spectrum analyzer using delta modulation encoding
US4080516A (en) * 1975-10-06 1978-03-21 Hitachi, Ltd. Multi-frequency signal receiver
US4093989A (en) * 1976-12-03 1978-06-06 Rockland Systems Corporation Spectrum analyzer using digital filters
JPS6016582B2 (ja) * 1977-03-04 1985-04-26 日本電気株式会社 デイジタル周波数分析装置

Also Published As

Publication number Publication date
BE875865A (fr) 1979-08-16
SU1107760A3 (ru) 1984-08-07
IT7922192A0 (it) 1979-04-27
CA1120104A (fr) 1982-03-16
IT1113914B (it) 1986-01-27
SE7903656L (sv) 1979-10-28
GR66643B (it) 1981-04-03
GB2020070A (en) 1979-11-07
DE2917285A1 (de) 1979-11-08
FR2424669A1 (fr) 1979-11-23
US4286326A (en) 1981-08-25
ES479955A1 (es) 1980-01-01
TR20399A (tr) 1981-06-03
AU4637179A (en) 1979-11-01
FR2424669B1 (it) 1980-09-19
BR7902551A (pt) 1979-10-30
GB2020070B (en) 1982-03-31

Similar Documents

Publication Publication Date Title
SE435971B (sv) Digital spektralanalysatoranordning
Friedlander et al. New inversion formulas for matrices classified in terms of their distance from Toeplitz matrices
US4623980A (en) Method of processing electrical signals by means of Fourier transformations
Usui et al. Digital low-pass differentiation for biological signal processing
Lynn Online digital filters for biological signals: some fast designs for a small computer
CN110365312A (zh) 两通道正交镜像滤波器组的多相结构及其系数设计方法
US3544894A (en) Apparatus for performing complex wave analysis
Graham et al. Nonlinear system modeling and analysis with applications to communications receivers
Beex et al. Covariance sequence approximation for parametric spectrum modeling
Antoniou Accelerated procedure for the design of equiripple nonrecursive digital filters
Várkonyi-Kóczy et al. A fast filter-bank for adaptive Fourier analysis
Hou et al. The all phase DFT filter
JPS5816838B2 (ja) 多周波信号受信方式
Mersereau An algorithm for performing an inverse chirp z-transform
Graziosi et al. A constant-Q spectral transformation with improved frequency response
Engels et al. On Walsh differentiable dyadically stationary random processes
Sersic Wavelet filter banks with adaptive number of zero moments
Liu et al. Short-time Hartley transform
Lee et al. Filter design for polyphase filter banks with arbitrary number of subband channel
Guarino Adaptive signal processing using FIR and IIR filters
Peters et al. Synthesis of recursive LTV digital filters using the frozen-time approximation
Feng et al. Analysis of the recursive multiple window STFTs and spectrograms
Kay Comments on" Line tracking using autoregressive spectral estimates"
Schultze Dimensioning the low‐pass filters in pcm terminal equipment
Moharir Modular permutation properties of discrete Fourier transform pair

Legal Events

Date Code Title Description
NUG Patent has lapsed

Ref document number: 7903656-2

Effective date: 19921108

Format of ref document f/p: F