CA2101177A1 - Signal processing apparatus - Google Patents

Signal processing apparatus Download PDF

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Publication number
CA2101177A1
CA2101177A1 CA002101177A CA2101177A CA2101177A1 CA 2101177 A1 CA2101177 A1 CA 2101177A1 CA 002101177 A CA002101177 A CA 002101177A CA 2101177 A CA2101177 A CA 2101177A CA 2101177 A1 CA2101177 A1 CA 2101177A1
Authority
CA
Canada
Prior art keywords
signal
samples
signal processing
circuitry
processing apparatus
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.)
Granted
Application number
CA002101177A
Other languages
French (fr)
Other versions
CA2101177C (en
Inventor
Brent Summers
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.)
BAE Systems PLC
Original Assignee
GEC Marconi Ltd
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 to GB9126312A priority Critical patent/GB2400496B/en
Application filed by GEC Marconi Ltd filed Critical GEC Marconi Ltd
Priority to CA002101177A priority patent/CA2101177C/en
Publication of CA2101177A1 publication Critical patent/CA2101177A1/en
Application granted granted Critical
Publication of CA2101177C publication Critical patent/CA2101177C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G01S13/42—Simultaneous measurement of distance and other co-ordinates
    • G01S13/426—Scanning radar, e.g. 3D radar
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/22—Antenna units of the array energised non-uniformly in amplitude or phase, e.g. tapered array or binomial array
    • 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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/14—Systems for determining direction or deviation from predetermined direction
    • G01S3/46—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems
    • 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
    • G01S7/28—Details of pulse systems
    • G01S7/282—Transmitters
    • 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
    • G01S7/28—Details of pulse systems
    • G01S7/285—Receivers

Abstract

The invention relates to an apparatus for and a method of processing signals. The apparatus includes circuitry for obtaining a first set of samples of a signal at a first set of non-uniformly-spaced sampling intervals; circuitry for reconstructing the signal from the first set of samples; and circuitry for generating, from the reconstructed signal, a second set of samples of the signal at a second set of sampling intervals different from the first. The invention can be used in a number of fields of technology, e.g. radar signal processing, to make use of information contained in the signal.
CA002101177A 1991-12-11 1993-06-29 Signal processing apparatus Expired - Lifetime CA2101177C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB9126312A GB2400496B (en) 1991-12-11 1991-12-11 Signal processing apparatus
CA002101177A CA2101177C (en) 1991-12-11 1993-06-29 Signal processing apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9126312A GB2400496B (en) 1991-12-11 1991-12-11 Signal processing apparatus
CA002101177A CA2101177C (en) 1991-12-11 1993-06-29 Signal processing apparatus

Publications (2)

Publication Number Publication Date
CA2101177A1 true CA2101177A1 (en) 2005-02-02
CA2101177C CA2101177C (en) 2005-08-30

Family

ID=34423897

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002101177A Expired - Lifetime CA2101177C (en) 1991-12-11 1993-06-29 Signal processing apparatus

Country Status (2)

Country Link
CA (1) CA2101177C (en)
GB (1) GB2400496B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113131225B (en) * 2021-04-16 2021-10-22 电子科技大学 Irregular antenna array optimization method based on subarray factor gain maximization

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4052723A (en) * 1976-04-26 1977-10-04 Westinghouse Electric Corporation Randomly agglomerated subarrays for phased array radars
US4170766A (en) * 1978-01-27 1979-10-09 Raytheon Company Beamformer
GB2113940B (en) * 1981-04-28 1985-04-17 Elliott Bros Data transmission system
GB2141905A (en) * 1983-06-20 1985-01-03 Philips Electronic Associated Secure transmission system
US4977462A (en) * 1987-03-24 1990-12-11 Sony Corporation Apparatus for correcting a time base error in a video signal
JP2784781B2 (en) * 1989-01-19 1998-08-06 ソニー株式会社 Time axis correction device
US5003314A (en) * 1989-07-24 1991-03-26 Cubic Defense Systems, Inc. Digitally synthesized phase error correcting system

Also Published As

Publication number Publication date
GB2400496B (en) 2005-02-09
CA2101177C (en) 2005-08-30
GB2400496A (en) 2004-10-13
GB9126312D0 (en) 2003-07-23

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Legal Events

Date Code Title Description
EEER Examination request
FZDC Discontinued application reinstated
MKLA Lapsed

Effective date: 20130702

MKEC Expiry (correction)

Effective date: 20131009