JPS5452409A - Measuring method for reflected wave using pulse carrier - Google Patents
Measuring method for reflected wave using pulse carrierInfo
- Publication number
- JPS5452409A JPS5452409A JP11917477A JP11917477A JPS5452409A JP S5452409 A JPS5452409 A JP S5452409A JP 11917477 A JP11917477 A JP 11917477A JP 11917477 A JP11917477 A JP 11917477A JP S5452409 A JPS5452409 A JP S5452409A
- Authority
- JP
- Japan
- Prior art keywords
- pulse
- circuit
- carriers
- reflected wave
- transmission line
- 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
Links
Landscapes
- Measurement Of Resistance Or Impedance (AREA)
- Waveguide Connection Structure (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
PURPOSE: To maintain a constant measurement secion, by compensating frequency characteristics varying with a propagation speed, by changing the pulse width and sampling point of pulse-modulated carriers.
CONSTITUTION: The output of signal generator 1 is modulated 2 with a pulse from circuit 9 and transmitted measured transmission line 4 via directional coupler 3, so that a component reflected by transmission line 4 will be extracted and recorded 11 by sampling circuit 10 via coupler 3, RF amplifier 6, detector 7, and video amplifier 8. Recorder 11 synchronizes with the sweep frequency of generator 1, and frequency characteristics of the reflection amount in section, which is determined by the pulse width of a transmitted wave and the sampling point of the reflected wave, are measured. Detecting the time while carriers go from the reflected wave and return through the transmission line, circuit 9 gates circuit 2 and generates a sampling pulse, so that the pulse width of the transmitted wave and the sampling point will vary with the transmission rate of carriers
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52119174A JPS608463B2 (en) | 1977-10-04 | 1977-10-04 | Method for measuring reflected waves using pulsed carrier waves |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52119174A JPS608463B2 (en) | 1977-10-04 | 1977-10-04 | Method for measuring reflected waves using pulsed carrier waves |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5452409A true JPS5452409A (en) | 1979-04-25 |
JPS608463B2 JPS608463B2 (en) | 1985-03-02 |
Family
ID=14754732
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52119174A Expired JPS608463B2 (en) | 1977-10-04 | 1977-10-04 | Method for measuring reflected waves using pulsed carrier waves |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS608463B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4812738A (en) * | 1985-04-13 | 1989-03-14 | Anritsu Corporation | Apparatus for analyzing transmission/reflection characteristics |
-
1977
- 1977-10-04 JP JP52119174A patent/JPS608463B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4812738A (en) * | 1985-04-13 | 1989-03-14 | Anritsu Corporation | Apparatus for analyzing transmission/reflection characteristics |
Also Published As
Publication number | Publication date |
---|---|
JPS608463B2 (en) | 1985-03-02 |
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