SE8702901D0 - SIGNALING DEVICE - Google Patents

SIGNALING DEVICE

Info

Publication number
SE8702901D0
SE8702901D0 SE8702901A SE8702901A SE8702901D0 SE 8702901 D0 SE8702901 D0 SE 8702901D0 SE 8702901 A SE8702901 A SE 8702901A SE 8702901 A SE8702901 A SE 8702901A SE 8702901 D0 SE8702901 D0 SE 8702901D0
Authority
SE
Sweden
Prior art keywords
mixer
frequency
signals generated
base station
station
Prior art date
Application number
SE8702901A
Other languages
Swedish (sv)
Inventor
R Berthold
Original Assignee
Bbc Brown Boveri & Cie
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 Bbc Brown Boveri & Cie filed Critical Bbc Brown Boveri & Cie
Publication of SE8702901D0 publication Critical patent/SE8702901D0/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C13/00—Proximity fuzes; Fuzes for remote detonation
    • F42C13/04—Proximity fuzes; Fuzes for remote detonation operated by radio waves
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
    • H03L7/183—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number
    • H03L7/185—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number using a mixer in the loop

Abstract

The object of the invention is to provide a method and a circuit by means of which the signals generated in a stationary base station (1) and a flying station e.g. missile (3) can be regulated to a common frequency. The frequency of the signals generated in the base station (1) is adjusted to the frequency of the signals generated by the flying station. To perform the method the base station (1) uses a circuit (2) having a frequency generator (5) whose control input is connected to a first mixer (6) via a series circuit consisting of a converter (8) and a filter (14). The signal input of this mixer (6) is connected to two receivers (9, 10) which receive at least two different frequencies (fP) (fRP) in order to determine a control signal for the frequency generator (5). The flying station (3) has a frequency generator (40) whose output is connected to at least one mixer (41). The second input of mixer (41) is connected to the reception antenna (43) via a receiver (42). The output of the mixer (41) is connected to the transmission antenna (45) via a filter (44). <IMAGE>
SE8702901A 1986-08-01 1987-07-17 SIGNALING DEVICE SE8702901D0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3626023 1986-08-01

Publications (1)

Publication Number Publication Date
SE8702901D0 true SE8702901D0 (en) 1987-07-17

Family

ID=6306459

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8702901A SE8702901D0 (en) 1986-08-01 1987-07-17 SIGNALING DEVICE

Country Status (5)

Country Link
FR (1) FR2642241A1 (en)
GB (1) GB2229608A (en)
IT (1) IT1228419B (en)
NL (1) NL8701483A (en)
SE (1) SE8702901D0 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB990139A (en) * 1960-05-13 1965-04-28 Henry Parks Hutchinson Improvements in or relating to communications systems
US3430237A (en) * 1967-11-24 1969-02-25 Nasa Time division multiplex system
GB1390084A (en) * 1972-07-01 1975-04-09 Marconi Co Ltd Signal transmission systems
GB1583342A (en) * 1976-07-30 1981-01-28 Marconi Co Ltd Satellite communication systems
US4229741A (en) * 1979-03-12 1980-10-21 Motorola, Inc. Two-way communications system and method of synchronizing

Also Published As

Publication number Publication date
FR2642241A1 (en) 1990-07-27
IT1228419B (en) 1991-06-17
NL8701483A (en) 1990-03-01
GB8715877D0 (en) 1990-05-16
IT8721312A0 (en) 1987-07-16
GB2229608A (en) 1990-09-26

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