JPS5714228A - Simulator for phasing state - Google Patents

Simulator for phasing state

Info

Publication number
JPS5714228A
JPS5714228A JP8868280A JP8868280A JPS5714228A JP S5714228 A JPS5714228 A JP S5714228A JP 8868280 A JP8868280 A JP 8868280A JP 8868280 A JP8868280 A JP 8868280A JP S5714228 A JPS5714228 A JP S5714228A
Authority
JP
Japan
Prior art keywords
phase
signal
shifted
transmission
frequency
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
Application number
JP8868280A
Other languages
Japanese (ja)
Inventor
Sadao Takenaka
Eisuke Fukuda
Hiroshi Kurihara
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP8868280A priority Critical patent/JPS5714228A/en
Publication of JPS5714228A publication Critical patent/JPS5714228A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising
    • H04B3/14—Control of transmission; Equalising characterised by the equalising network used
    • H04B3/146—Control of transmission; Equalising characterised by the equalising network used using phase-frequency equalisers
    • H04B3/147—Control of transmission; Equalising characterised by the equalising network used using phase-frequency equalisers fixed equalisers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Radio Transmission System (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)

Abstract

PURPOSE:To make a constant-value phase shift over a wide range by mixing a transmission-line signal, a fixed-frequency signal, and a phase-shifted fixed-frequency signal successively and by extracting only a phase-shifted trasmission-line signal from the mixture signal. CONSTITUTION:The output of a fixed-frequency oscillator OSC is phase-shifted by a phase shifter PSF, whose output signal is mixed with a transmission-line signal inputted to a variable phase shifter PHS by a signal mixer MIX1. Then, a band- pass filter BPF1 extracts a required frequency component, which is remixed with the output of the OSC which is not shifted in phase. The mixture signal is passed through a band-pass filter BPF2 to extract only a phase-shifted transmission-line signal. Consequently, the transmission-line signal is shifted in phase as much as the extent that the phase shifter PSF determines without any influence of its frequency, so that the secure simulation of a phasing state is achieved by using a variable phase shifter which makes a constant-value phase shift over a wide range.
JP8868280A 1980-06-30 1980-06-30 Simulator for phasing state Pending JPS5714228A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8868280A JPS5714228A (en) 1980-06-30 1980-06-30 Simulator for phasing state

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8868280A JPS5714228A (en) 1980-06-30 1980-06-30 Simulator for phasing state

Publications (1)

Publication Number Publication Date
JPS5714228A true JPS5714228A (en) 1982-01-25

Family

ID=13949593

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8868280A Pending JPS5714228A (en) 1980-06-30 1980-06-30 Simulator for phasing state

Country Status (1)

Country Link
JP (1) JPS5714228A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5868340A (en) * 1981-10-19 1983-04-23 Nec Corp Fading generator
JPS5870419U (en) * 1981-11-06 1983-05-13 ヤンマー農機株式会社 Belt cover for agricultural machinery
JPS59111435A (en) * 1982-12-17 1984-06-27 Nippon Telegr & Teleph Corp <Ntt> Fading simulator
JPS60236529A (en) * 1984-04-04 1985-11-25 ブリテイシユ・テレコミユニケーシヨンズ・パブリツク・リミテツド・カンパニ Quasi-testing device of interference due to plural transmission lines

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5868340A (en) * 1981-10-19 1983-04-23 Nec Corp Fading generator
JPS6328373B2 (en) * 1981-10-19 1988-06-08 Nippon Electric Co
JPS5870419U (en) * 1981-11-06 1983-05-13 ヤンマー農機株式会社 Belt cover for agricultural machinery
JPS59111435A (en) * 1982-12-17 1984-06-27 Nippon Telegr & Teleph Corp <Ntt> Fading simulator
JPS60236529A (en) * 1984-04-04 1985-11-25 ブリテイシユ・テレコミユニケーシヨンズ・パブリツク・リミテツド・カンパニ Quasi-testing device of interference due to plural transmission lines

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