JPS5533604A - Measurement of nonlinear distorsion of communication system - Google Patents

Measurement of nonlinear distorsion of communication system

Info

Publication number
JPS5533604A
JPS5533604A JP10550078A JP10550078A JPS5533604A JP S5533604 A JPS5533604 A JP S5533604A JP 10550078 A JP10550078 A JP 10550078A JP 10550078 A JP10550078 A JP 10550078A JP S5533604 A JPS5533604 A JP S5533604A
Authority
JP
Japan
Prior art keywords
signals
distorsion
fed
demodulator
sweeping
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
JP10550078A
Other languages
Japanese (ja)
Other versions
JPS582621B2 (en
Inventor
Ryoichi Ogawa
Tatsuo Takayanagi
Akira Goi
Toshio Takahata
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry Co Ltd
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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP53105500A priority Critical patent/JPS582621B2/en
Publication of JPS5533604A publication Critical patent/JPS5533604A/en
Publication of JPS582621B2 publication Critical patent/JPS582621B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Measurement Of Resistance Or Impedance (AREA)

Abstract

PURPOSE: To shorten the measuring time and to improve the efficiency in design and adjustment by feeding carrier wave depressing both side band amplitude modulating signal having large amplitudes to the input terminal of a device to be measured thereby to directly measure the nonlinear distorsion.
CONSTITUTION: The signals from a sweeping signal generator 1 are fed to a carrier wave depressing both side band anplitude modulator 2 thereby to produce sweeping signals. The signals by a differential signal generator 3 are applied to a single band amplitude modulator 4 thereby to produce differential signals. Those two output waves thus produced are composed and fed to a device 5 to be measured, the output of which is branched and fed to a signals band demodulator 6 and a sweeping signal demodulator 9. The differential signals are demodulated by the demodulator 6. The AM distorsion component and the PM distorsion component are detected in the vicinity of the differential signals at an amplitude detector 7 and a phase detector 8 and fed to the vertical axis of a direct monitor 10. On the other hand, the sweeping signals demodulated by the demodulator 9 are fed to the horizontal axis of the monitor 10. Thus, since the nonlinear distorsion can be directly read out, it is possible to shorten the measuring time and to improve the efficiency in design and adjustement.
COPYRIGHT: (C)1980,JPO&Japio
JP53105500A 1978-08-31 1978-08-31 How to measure nonlinear distortion in communication equipment Expired JPS582621B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53105500A JPS582621B2 (en) 1978-08-31 1978-08-31 How to measure nonlinear distortion in communication equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53105500A JPS582621B2 (en) 1978-08-31 1978-08-31 How to measure nonlinear distortion in communication equipment

Publications (2)

Publication Number Publication Date
JPS5533604A true JPS5533604A (en) 1980-03-08
JPS582621B2 JPS582621B2 (en) 1983-01-18

Family

ID=14409312

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53105500A Expired JPS582621B2 (en) 1978-08-31 1978-08-31 How to measure nonlinear distortion in communication equipment

Country Status (1)

Country Link
JP (1) JPS582621B2 (en)

Also Published As

Publication number Publication date
JPS582621B2 (en) 1983-01-18

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