FR2189949A2 - - Google Patents

Info

Publication number
FR2189949A2
FR2189949A2 FR7222690A FR7222690A FR2189949A2 FR 2189949 A2 FR2189949 A2 FR 2189949A2 FR 7222690 A FR7222690 A FR 7222690A FR 7222690 A FR7222690 A FR 7222690A FR 2189949 A2 FR2189949 A2 FR 2189949A2
Authority
FR
France
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
FR7222690A
Other languages
French (fr)
Other versions
FR2189949B2 (enrdf_load_stackoverflow
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.)
Compagnie IBM France SAS
Original Assignee
Compagnie IBM France SAS
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 Compagnie IBM France SAS filed Critical Compagnie IBM France SAS
Priority to FR7222690A priority Critical patent/FR2189949B2/fr
Publication of FR2189949A2 publication Critical patent/FR2189949A2/fr
Application granted granted Critical
Publication of FR2189949B2 publication Critical patent/FR2189949B2/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/34—Muting amplifier when no signal is present
    • H03G3/342—Muting when some special characteristic of the signal is sensed which distinguishes it from noise, e.g. using speech detector
    • 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
    • G01S7/2921—Extracting wanted echo-signals based on data belonging to one radar period
    • 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
    • G01S7/2921—Extracting wanted echo-signals based on data belonging to one radar period
    • G01S7/2922—Extracting wanted echo-signals based on data belonging to one radar period by using a controlled threshold
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/34—Muting amplifier when no signal is present
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/34—Muting amplifier when no signal is present
    • H03G3/341—Muting when no signals or only weak signals are present

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR7222690A 1968-12-20 1972-06-20 Expired FR2189949B2 (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7222690A FR2189949B2 (enrdf_load_stackoverflow) 1968-12-20 1972-06-20

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR6009642 1968-12-20
FR7222690A FR2189949B2 (enrdf_load_stackoverflow) 1968-12-20 1972-06-20

Publications (2)

Publication Number Publication Date
FR2189949A2 true FR2189949A2 (enrdf_load_stackoverflow) 1974-01-25
FR2189949B2 FR2189949B2 (enrdf_load_stackoverflow) 1975-03-07

Family

ID=26214730

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7222690A Expired FR2189949B2 (enrdf_load_stackoverflow) 1968-12-20 1972-06-20

Country Status (1)

Country Link
FR (1) FR2189949B2 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2300462A1 (fr) * 1975-02-10 1976-09-03 Bofors Ab Circuit electronique a valeur de seuil

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2783466A (en) * 1949-09-15 1957-02-26 Gen Electric Radar receiver automatic noise leveling circuits
GB1114531A (en) * 1964-02-12 1968-05-22 Emi Ltd Improvements relating to radar
FR1584091A (enrdf_load_stackoverflow) * 1968-08-02 1969-12-12

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2783466A (en) * 1949-09-15 1957-02-26 Gen Electric Radar receiver automatic noise leveling circuits
GB1114531A (en) * 1964-02-12 1968-05-22 Emi Ltd Improvements relating to radar
FR1584091A (enrdf_load_stackoverflow) * 1968-08-02 1969-12-12

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2300462A1 (fr) * 1975-02-10 1976-09-03 Bofors Ab Circuit electronique a valeur de seuil

Also Published As

Publication number Publication date
FR2189949B2 (enrdf_load_stackoverflow) 1975-03-07

Similar Documents

Publication Publication Date Title
AU428130B2 (enrdf_load_stackoverflow)
AU2374870A (enrdf_load_stackoverflow)
AU5184069A (enrdf_load_stackoverflow)
AU6168869A (enrdf_load_stackoverflow)
AU6171569A (enrdf_load_stackoverflow)
AU429879B2 (enrdf_load_stackoverflow)
AU416157B2 (enrdf_load_stackoverflow)
AU2581067A (enrdf_load_stackoverflow)
AU4811568A (enrdf_load_stackoverflow)
AU421558B1 (enrdf_load_stackoverflow)
AU3789668A (enrdf_load_stackoverflow)
AU4744468A (enrdf_load_stackoverflow)
AU3224368A (enrdf_load_stackoverflow)
AU2580267A (enrdf_load_stackoverflow)
AU479894A (enrdf_load_stackoverflow)
BE708888A (enrdf_load_stackoverflow)
AU4503667A (enrdf_load_stackoverflow)
AU4558658A (enrdf_load_stackoverflow)
AU463027A (enrdf_load_stackoverflow)
AU4270368A (enrdf_load_stackoverflow)
AU479393A (enrdf_load_stackoverflow)
AU4224469A (enrdf_load_stackoverflow)
BE727207A (enrdf_load_stackoverflow)
AU3083868A (enrdf_load_stackoverflow)
AU2889368A (enrdf_load_stackoverflow)