JPS55107338A - Sweep oscillator having phase synchronization loop - Google Patents
Sweep oscillator having phase synchronization loopInfo
- Publication number
- JPS55107338A JPS55107338A JP1527379A JP1527379A JPS55107338A JP S55107338 A JPS55107338 A JP S55107338A JP 1527379 A JP1527379 A JP 1527379A JP 1527379 A JP1527379 A JP 1527379A JP S55107338 A JPS55107338 A JP S55107338A
- Authority
- JP
- Japan
- Prior art keywords
- sweep
- frequency
- oscillator
- phase synchronization
- period
- 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.)
- Pending
Links
- 230000010355 oscillation Effects 0.000 abstract 3
- 239000013078 crystal Substances 0.000 abstract 2
- 230000003252 repetitive effect Effects 0.000 abstract 1
- 230000006641 stabilisation Effects 0.000 abstract 1
- 238000011105 stabilization Methods 0.000 abstract 1
- 238000010408 sweeping Methods 0.000 abstract 1
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
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
PURPOSE:To make stable the oscillation frequency of sweep generator, by the phase synchronization of an aribitrary oscillation frequency in the sweep frequency of the sweep oscillator of voltage control type to the frequency of high stabilization such as crystal oscillator. CONSTITUTION:The phase synchronization loop consists of the voltage controlled sweep oscillator 1, amplifier 2, divider 4, phase comparison circuit 6, LPF7, and adder 8. When the oscillator 1 is swept with the saw tooth waves of sweep period t, the frequency is swept from f1-f2 and the frequency is f1 and is constant at the next blank period (repetitive period T-sweep time t). Phase synchronization is made at the oscillation frequency range narrower in the capture range at the blank period, and at the sweep period t, sweeping is made from the frequency f1 in phase synchronization by the band width given at the sweep control circuit 12. The frequency of leading of sweep signal is made stable with the reference oscillator 5 made of highly stable crystal oscillator.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1527379A JPS55107338A (en) | 1979-02-13 | 1979-02-13 | Sweep oscillator having phase synchronization loop |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1527379A JPS55107338A (en) | 1979-02-13 | 1979-02-13 | Sweep oscillator having phase synchronization loop |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55107338A true JPS55107338A (en) | 1980-08-18 |
Family
ID=11884245
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1527379A Pending JPS55107338A (en) | 1979-02-13 | 1979-02-13 | Sweep oscillator having phase synchronization loop |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55107338A (en) |
-
1979
- 1979-02-13 JP JP1527379A patent/JPS55107338A/en active Pending
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