WO1995032436A3 - Signal processing - Google Patents

Signal processing Download PDF

Info

Publication number
WO1995032436A3
WO1995032436A3 PCT/GB1995/001149 GB9501149W WO9532436A3 WO 1995032436 A3 WO1995032436 A3 WO 1995032436A3 GB 9501149 W GB9501149 W GB 9501149W WO 9532436 A3 WO9532436 A3 WO 9532436A3
Authority
WO
WIPO (PCT)
Prior art keywords
signal
samples
time
rate
batch
Prior art date
Application number
PCT/GB1995/001149
Other languages
French (fr)
Other versions
WO1995032436A2 (en
Inventor
Brent Summers
Original Assignee
Commw Of Australia
Brent Summers
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
Priority claimed from GB9410164A external-priority patent/GB2290188A/en
Application filed by Commw Of Australia, Brent Summers filed Critical Commw Of Australia
Priority to AU25310/95A priority Critical patent/AU2531095A/en
Priority to PCT/GB1995/001149 priority patent/WO1995032436A2/en
Publication of WO1995032436A2 publication Critical patent/WO1995032436A2/en
Publication of WO1995032436A3 publication Critical patent/WO1995032436A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06—Systems determining position data of a target
    • G01S13/08—Systems for measuring distance only
    • G01S13/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
    • G01S13/34—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/35—Details of non-pulse systems
    • G01S7/352—Receivers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/35—Details of non-pulse systems
    • G01S7/352—Receivers
    • G01S7/356—Receivers involving particularities of FFT processing

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Complex Calculations (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

A method of matched filtering or circular correlation between a digitally represented band limited periodic input signal and a predetermined single period reference waveform which provides output spaced at predetermined intervals independent of the input signal sampling rate and comprising the steps of i) accepting a digitised signal, such that the samples are a unique representation of the signal, and also represented by an appropriate level and number of quanta; ii) collecting overlapped batches of a number of successive samples, and storing the batch samples for future use; iii) computing a frequency or time domain representation of the reference waveform; iv) simultaneously computing a number or batch of outputs by means of a two-stage process of super-fast correlation and range (or time)-domain re-sampling, respectively; v) outputting a time or frequency domain representation of the processed signals at a rate commensurate with the digitised signal input rate, and signal processing apparatus employing such a method.
PCT/GB1995/001149 1994-05-20 1995-05-22 Signal processing WO1995032436A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU25310/95A AU2531095A (en) 1994-05-20 1995-05-22 Signal processing
PCT/GB1995/001149 WO1995032436A2 (en) 1994-05-20 1995-05-22 Signal processing

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9410164.9 1994-05-20
GB9410164A GB2290188A (en) 1994-05-20 1994-05-20 Radar range processing
PCT/GB1995/001149 WO1995032436A2 (en) 1994-05-20 1995-05-22 Signal processing

Publications (2)

Publication Number Publication Date
WO1995032436A2 WO1995032436A2 (en) 1995-11-30
WO1995032436A3 true WO1995032436A3 (en) 1995-12-28

Family

ID=26304918

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1995/001149 WO1995032436A2 (en) 1994-05-20 1995-05-22 Signal processing

Country Status (1)

Country Link
WO (1) WO1995032436A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102609711B (en) * 2012-02-21 2013-08-28 核工业北京地质研究院 Information extraction method applicable to hyperspectral image
CN111323794B (en) * 2020-03-21 2023-05-05 哈尔滨工程大学 Periodic frequency modulation interference elimination method based on periodic resampling

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4626853A (en) * 1984-07-20 1986-12-02 Westinghouse Electric Corp. Pulse compression radar signal processor
US4802111A (en) * 1986-03-10 1989-01-31 Zoran Corporation Cascadable digital filter processor employing moving coefficients

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4626853A (en) * 1984-07-20 1986-12-02 Westinghouse Electric Corp. Pulse compression radar signal processor
US4802111A (en) * 1986-03-10 1989-01-31 Zoran Corporation Cascadable digital filter processor employing moving coefficients

Also Published As

Publication number Publication date
WO1995032436A2 (en) 1995-11-30

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