GB2107149B - Distinguishing signals from noise - Google Patents

Distinguishing signals from noise

Info

Publication number
GB2107149B
GB2107149B GB08208070A GB8208070A GB2107149B GB 2107149 B GB2107149 B GB 2107149B GB 08208070 A GB08208070 A GB 08208070A GB 8208070 A GB8208070 A GB 8208070A GB 2107149 B GB2107149 B GB 2107149B
Authority
GB
United Kingdom
Prior art keywords
noise
distinguishing signals
distinguishing
signals
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.)
Expired
Application number
GB08208070A
Other versions
GB2107149A (en
Inventor
Graham Clive Goddard
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
British Aerospace PLC
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 GB08108821A external-priority patent/GB2107148A/en
Application filed by British Aerospace PLC filed Critical British Aerospace PLC
Publication of GB2107149A publication Critical patent/GB2107149A/en
Application granted granted Critical
Publication of GB2107149B publication Critical patent/GB2107149B/en
Expired 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
    • G01S13/50—Systems of measurement based on relative movement of target
    • G01S13/52—Discriminating between fixed and moving objects or between objects moving at different speeds
    • G01S13/522—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves
    • G01S13/524—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves based upon the phase or frequency shift resulting from movement of objects, with reference to the transmitted signals, e.g. coherent MTi
    • 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
    • G01S7/292—Extracting wanted echo-signals
    • G01S7/2923—Extracting wanted echo-signals based on data belonging to a number of consecutive radar periods
    • G01S7/2926—Extracting wanted echo-signals based on data belonging to a number of consecutive radar periods by integration
    • 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
    • G01S7/36—Means for anti-jamming, e.g. ECCM, i.e. electronic counter-counter measures

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)
GB08208070A 1978-05-31 1982-03-22 Distinguishing signals from noise Expired GB2107149B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7825714 1978-05-31
GB08108821A GB2107148A (en) 1981-03-20 1981-03-20 Distinguishing signals from noise

Publications (2)

Publication Number Publication Date
GB2107149A GB2107149A (en) 1983-04-20
GB2107149B true GB2107149B (en) 1984-05-31

Family

ID=39577891

Family Applications (2)

Application Number Title Priority Date Filing Date
GB7918988A Expired - Lifetime GB2432984B (en) 1978-05-31 1979-05-31 Signal receiver
GB08208070A Expired GB2107149B (en) 1978-05-31 1982-03-22 Distinguishing signals from noise

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB7918988A Expired - Lifetime GB2432984B (en) 1978-05-31 1979-05-31 Signal receiver

Country Status (1)

Country Link
GB (2) GB2432984B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004039869A1 (en) * 2004-08-17 2006-03-09 Infineon Technologies Ag Signal-differentiating method for differentiating between a frequency-/phase-modulated wanted signal and a noise signal in an incoming signal checks for phase noise
CN106530243A (en) * 2016-10-25 2017-03-22 天津大学 Synthetic aperture radar image speckle noise filtering method
CN107219506A (en) * 2017-06-07 2017-09-29 南京燃犀智能科技有限公司 A kind of radar receives extension set

Also Published As

Publication number Publication date
GB2107149A (en) 1983-04-20
GB2432984A (en) 2007-06-06
GB2432984B (en) 2007-12-19
GB7918988D0 (en) 2007-03-28

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19980322