CA967671A - Processor for improving signal to noise ratio - Google Patents

Processor for improving signal to noise ratio

Info

Publication number
CA967671A
CA967671A CA127,806A CA127806A CA967671A CA 967671 A CA967671 A CA 967671A CA 127806 A CA127806 A CA 127806A CA 967671 A CA967671 A CA 967671A
Authority
CA
Canada
Prior art keywords
processor
noise ratio
improving signal
improving
signal
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
CA127,806A
Other languages
English (en)
Other versions
CA127806S (en
Inventor
Roland A. Cherwek
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.)
Raytheon Co
Original Assignee
Raytheon Co
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 Raytheon Co filed Critical Raytheon Co
Application granted granted Critical
Publication of CA967671A publication Critical patent/CA967671A/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
    • G01S13/53—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 performing filtering on a single spectral line and associated with one or more range gates with a phase detector or a frequency mixer to extract the Doppler information, e.g. pulse Doppler radar
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Radar Systems Or Details Thereof (AREA)
CA127,806A 1970-11-23 1971-11-16 Processor for improving signal to noise ratio Expired CA967671A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US9172370A 1970-11-23 1970-11-23

Publications (1)

Publication Number Publication Date
CA967671A true CA967671A (en) 1975-05-13

Family

ID=22229350

Family Applications (1)

Application Number Title Priority Date Filing Date
CA127,806A Expired CA967671A (en) 1970-11-23 1971-11-16 Processor for improving signal to noise ratio

Country Status (11)

Country Link
US (1) US3706095A (it)
JP (1) JPS5120278B1 (it)
AU (1) AU459613B2 (it)
BE (1) BE775477A (it)
CA (1) CA967671A (it)
DE (1) DE2157342C3 (it)
FR (1) FR2115186B1 (it)
GB (1) GB1308089A (it)
IL (1) IL37880A (it)
IT (1) IT942256B (it)
NL (1) NL182246C (it)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4079378A (en) * 1977-02-28 1978-03-14 General Dynamics Corporation Coherent pulse radar system with time-shared frequency source
DE2907315A1 (de) * 1979-02-24 1980-08-28 Philips Patentverwaltung Schaltungsanordnung zur auswertung von dopplerradarsignalen fuer ein dopplerradar im ghz-bereich
FR2472759A1 (fr) * 1979-12-28 1981-07-03 Thomson Csf Dispositif d'elimination des echos fixes dans les equipements de detection electromagnetique et equipements comportant un tel dispositif
US5327141A (en) * 1986-11-06 1994-07-05 Raytheon Company Clutter removal by polynomial compensation
US5508605A (en) * 1994-05-24 1996-04-16 Alliedsignal Inc. Method for measuring RF pulse frequency
US5805460A (en) * 1994-10-21 1998-09-08 Alliedsignal Inc. Method for measuring RF pulse rise time, fall time and pulse width
US5519399A (en) * 1994-12-05 1996-05-21 Alliedsignal Inc. Method for measuring the frequency of continuous wave and wide pulse RF signals
EP2009461A1 (en) * 2006-04-20 2008-12-31 Anritsu Corporation Short-pulse radar and method for controlling the same

Also Published As

Publication number Publication date
US3706095A (en) 1972-12-12
NL182246C (nl) 1988-02-01
AU459613B2 (en) 1975-04-10
BE775477A (fr) 1972-03-16
DE2157342C3 (de) 1974-06-12
NL7116092A (it) 1972-05-25
FR2115186B1 (it) 1977-01-21
DE2157342B2 (de) 1973-11-15
GB1308089A (en) 1973-02-21
AU3445971A (en) 1973-04-19
IL37880A (en) 1974-03-14
JPS5120278B1 (it) 1976-06-23
IT942256B (it) 1973-03-20
DE2157342A1 (de) 1972-05-31
FR2115186A1 (it) 1972-07-07
IL37880A0 (en) 1972-01-27
NL182246B (nl) 1987-09-01

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