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JPS5660116A - Synchronous oscillation afc system - Google Patents
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JPS5660116A - Synchronous oscillation afc system - Google Patents

Synchronous oscillation afc system

Info

Publication number
JPS5660116A
JPS5660116A JP13657679A JP13657679A JPS5660116A JP S5660116 A JPS5660116 A JP S5660116A JP 13657679 A JP13657679 A JP 13657679A JP 13657679 A JP13657679 A JP 13657679A JP S5660116 A JPS5660116 A JP S5660116A
Authority
JP
Japan
Prior art keywords
phase
generated
tau1
amplifier
delay
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.)
Granted
Application number
JP13657679A
Other languages
Japanese (ja)
Other versions
JPS5910092B2 (en
Inventor
Michihiro Sawada
Masaru Tamura
Shinpei Ogawa
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.)
Fujitsu Ltd
Technical Research and Development Institute of Japan Defence Agency
Original Assignee
Fujitsu Ltd
Technical Research and Development Institute of Japan Defence Agency
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 Fujitsu Ltd, Technical Research and Development Institute of Japan Defence Agency filed Critical Fujitsu Ltd
Priority to JP54136576A priority Critical patent/JPS5910092B2/en
Publication of JPS5660116A publication Critical patent/JPS5660116A/en
Publication of JPS5910092B2 publication Critical patent/JPS5910092B2/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Radar Systems Or Details Thereof (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

PURPOSE:To make it possible to obtain a high frequency signal of an aimed constant frequency directly from an amplifier provided with delay feedback, by detecting and applying a phase shift in an amplifier output due to a feedback loop to a phase shifter. CONSTITUTION:When one component of a signal branched to two by the 4th branching circuit 15 of control part D is applied to phase detecting circuit 17 and the other is applied via the 2nd delay line 16, a phase difference is generated between both systems and phase detecting circuit 17 generates the output voltage that corresponds to the phase difference. Thus, phase discontinuance is detected which is generated at intervals of delay time tau1 of the 1st delay line 5. When this detected voltage is so applied to phase shifter 13 that the discontinuance of the phase will be canceled, a discontinuous and irregular change in phase generated at intervals of time tau1 is canceled in the output of amplifier 3 and while a frequency in oscillation completely in constant phase can be obtained in much longer time than tau1, the oscillation of a continuous wave becomes possible.
JP54136576A 1979-10-22 1979-10-22 Synchronous oscillation AFC method Expired JPS5910092B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54136576A JPS5910092B2 (en) 1979-10-22 1979-10-22 Synchronous oscillation AFC method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54136576A JPS5910092B2 (en) 1979-10-22 1979-10-22 Synchronous oscillation AFC method

Publications (2)

Publication Number Publication Date
JPS5660116A true JPS5660116A (en) 1981-05-23
JPS5910092B2 JPS5910092B2 (en) 1984-03-07

Family

ID=15178494

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54136576A Expired JPS5910092B2 (en) 1979-10-22 1979-10-22 Synchronous oscillation AFC method

Country Status (1)

Country Link
JP (1) JPS5910092B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997017760A1 (en) * 1995-11-09 1997-05-15 Takeshi Ikeda Tuning control system
WO1997017759A1 (en) * 1995-11-09 1997-05-15 Takeshi Ikeda Tuning control system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997017760A1 (en) * 1995-11-09 1997-05-15 Takeshi Ikeda Tuning control system
WO1997017759A1 (en) * 1995-11-09 1997-05-15 Takeshi Ikeda Tuning control system

Also Published As

Publication number Publication date
JPS5910092B2 (en) 1984-03-07

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