JPS54143274A - Frequency analyzer - Google Patents
Frequency analyzerInfo
- Publication number
- JPS54143274A JPS54143274A JP5141378A JP5141378A JPS54143274A JP S54143274 A JPS54143274 A JP S54143274A JP 5141378 A JP5141378 A JP 5141378A JP 5141378 A JP5141378 A JP 5141378A JP S54143274 A JPS54143274 A JP S54143274A
- Authority
- JP
- Japan
- Prior art keywords
- signals
- frequency
- output
- phase
- supplied
- 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
Abstract
PURPOSE: To measure the frequency of input signal precisely and stably, by processing the output signal of a frequency discriminator, in a radar system or the like.
CONSTITUTION: When an input signal is supplied into a phase detector 2 and a delay line 4 through a distributor 2, two signals having a phase difference are inputted into the detector 3, which then produces output signals differing in phase by π/2 each other. These output signals are supplied into differential amplifiers 8 to 12 of a logic operation unit 7 to be processed. As a result, logic signals A to D are obtained at output terminals 13 to 16 respectively of the operation unit 7. From these signal levels, the frequency ranges R1 to R8 of the input signals may be measured.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5141378A JPS54143274A (en) | 1978-04-28 | 1978-04-28 | Frequency analyzer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5141378A JPS54143274A (en) | 1978-04-28 | 1978-04-28 | Frequency analyzer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54143274A true JPS54143274A (en) | 1979-11-08 |
Family
ID=12886232
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5141378A Pending JPS54143274A (en) | 1978-04-28 | 1978-04-28 | Frequency analyzer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54143274A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57204464A (en) * | 1981-06-11 | 1982-12-15 | Mitsubishi Electric Corp | Digital output frequency measuring receiver |
JPS57207869A (en) * | 1981-06-17 | 1982-12-20 | Mitsubishi Electric Corp | Digitizing instantaneous frequency measuring device |
-
1978
- 1978-04-28 JP JP5141378A patent/JPS54143274A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57204464A (en) * | 1981-06-11 | 1982-12-15 | Mitsubishi Electric Corp | Digital output frequency measuring receiver |
JPS6134100B2 (en) * | 1981-06-11 | 1986-08-06 | Mitsubishi Electric Corp | |
JPS57207869A (en) * | 1981-06-17 | 1982-12-20 | Mitsubishi Electric Corp | Digitizing instantaneous frequency measuring device |
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