JPS5677763A - Measuring device for characteristics of modulator/demodulator - Google Patents
Measuring device for characteristics of modulator/demodulatorInfo
- Publication number
- JPS5677763A JPS5677763A JP15403679A JP15403679A JPS5677763A JP S5677763 A JPS5677763 A JP S5677763A JP 15403679 A JP15403679 A JP 15403679A JP 15403679 A JP15403679 A JP 15403679A JP S5677763 A JPS5677763 A JP S5677763A
- Authority
- JP
- Japan
- Prior art keywords
- output
- distortion
- amplifier
- demodulator
- modulator
- 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
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
PURPOSE: To realize a direct and quantitative measurement for the quantity of distortion, by producing such input signal in which the inclination and the working point are controlled independently from each other and then detecting the quantity of distortion of the object to be measured by the input signal.
CONSTITUTION: The output of the bias setting circuit 3 is applied to the differential amplifier 4 along with the output of the saw-tooth wave generating circuit 1 to produce the output (b), and then applied to the differential amplifier 7 via the object 5 to be measured such as the modulator/demodulator and the like. On the other hand, the output (b) is delivered to the terminal 6 through the delay line in the form of the output X of working point, and at the same time applied to the other input of the amplifier 7. The amplifier 7 produces the difference of both signals, i.e., the output Y of the quantity of distortion produced by the object 5 to the terminal 9. The both outputs X and Y are applied to e.g. an oscilloscope to secure a video display of the characteristics for the quantity of distortion. In such way, a direct and quantitative measurement is made possible for the quantity of distortion.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15403679A JPS5677763A (en) | 1979-11-28 | 1979-11-28 | Measuring device for characteristics of modulator/demodulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15403679A JPS5677763A (en) | 1979-11-28 | 1979-11-28 | Measuring device for characteristics of modulator/demodulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5677763A true JPS5677763A (en) | 1981-06-26 |
Family
ID=15575502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15403679A Pending JPS5677763A (en) | 1979-11-28 | 1979-11-28 | Measuring device for characteristics of modulator/demodulator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5677763A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2727390C1 (en) * | 2019-12-09 | 2020-07-21 | федеральное государственное бюджетное образовательное учреждение высшего образования "Донской государственный технический университет", (ДГТУ) | Indicator of presence of nonlinear distortions in radio electronic systems |
-
1979
- 1979-11-28 JP JP15403679A patent/JPS5677763A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2727390C1 (en) * | 2019-12-09 | 2020-07-21 | федеральное государственное бюджетное образовательное учреждение высшего образования "Донской государственный технический университет", (ДГТУ) | Indicator of presence of nonlinear distortions in radio electronic systems |
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