IT1235239B - RECEPTION DEVICE FOR LASER QUESTION - Google Patents

RECEPTION DEVICE FOR LASER QUESTION

Info

Publication number
IT1235239B
IT1235239B IT8519509A IT1950985A IT1235239B IT 1235239 B IT1235239 B IT 1235239B IT 8519509 A IT8519509 A IT 8519509A IT 1950985 A IT1950985 A IT 1950985A IT 1235239 B IT1235239 B IT 1235239B
Authority
IT
Italy
Prior art keywords
false alarm
alarm rate
threshold
question
laser
Prior art date
Application number
IT8519509A
Other languages
Italian (it)
Other versions
IT8519509A0 (en
Inventor
Schuberth Reiner
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of IT8519509A0 publication Critical patent/IT8519509A0/en
Application granted granted Critical
Publication of IT1235239B publication Critical patent/IT1235239B/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
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/74—Systems using reradiation of electromagnetic waves other than radio waves, e.g. IFF, i.e. identification of friend or foe
    • 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
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/483—Details of pulse systems
    • G01S7/486—Receivers
    • G01S7/487—Extracting wanted echo signals, e.g. pulse detection
    • G01S7/4873—Extracting wanted echo signals, e.g. pulse detection by deriving and controlling a threshold value

Abstract

An IFF laser interrogation receiver achieves a constant false alarm rate with a regulating loop Fig. 3. The theoretical value UW, and the actual value UX derived by a retriggerable monostable W from the output of threshold K, of the false alarm rate are compared (DI) and used to control a control element from whose output a constant false alarm rate is obtained. The threshold circuit K having a controllable threshold value or a regulating amplifier ("video-amplifier") having a controllable amplification factor, can be used as the control element. <IMAGE>
IT8519509A 1984-03-16 1985-02-14 RECEPTION DEVICE FOR LASER QUESTION IT1235239B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3409737 1984-03-16

Publications (2)

Publication Number Publication Date
IT8519509A0 IT8519509A0 (en) 1985-02-14
IT1235239B true IT1235239B (en) 1992-06-26

Family

ID=6230751

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8519509A IT1235239B (en) 1984-03-16 1985-02-14 RECEPTION DEVICE FOR LASER QUESTION

Country Status (4)

Country Link
BE (1) BE901953A (en)
DK (1) DK114085A (en)
GB (1) GB2249890B (en)
IT (1) IT1235239B (en)

Also Published As

Publication number Publication date
BE901953A (en) 1991-12-11
DK114085A (en) 1985-09-17
GB2249890A (en) 1992-05-20
IT8519509A0 (en) 1985-02-14
GB2249890B (en) 1992-10-14

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