JPS57204464A - Digital output frequency measuring receiver - Google Patents

Digital output frequency measuring receiver

Info

Publication number
JPS57204464A
JPS57204464A JP9141581A JP9141581A JPS57204464A JP S57204464 A JPS57204464 A JP S57204464A JP 9141581 A JP9141581 A JP 9141581A JP 9141581 A JP9141581 A JP 9141581A JP S57204464 A JPS57204464 A JP S57204464A
Authority
JP
Japan
Prior art keywords
channel
output
phase
circuit
digital output
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
JP9141581A
Other languages
Japanese (ja)
Other versions
JPS6134100B2 (en
Inventor
Mikio Funai
Yoshio Hamada
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP9141581A priority Critical patent/JPS57204464A/en
Publication of JPS57204464A publication Critical patent/JPS57204464A/en
Publication of JPS6134100B2 publication Critical patent/JPS6134100B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
    • G01R23/12—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage by converting frequency into phase shift

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Measuring Phase Differences (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

PURPOSE:To obtain a stable digital output, by correcting an ambiguous area having compatibility, appearing in a digital output of each channel, between each channel, and piling it up. CONSTITUTION:A high frequency signal inputted to an input terminal 1 is inputted to delaying circuits 5a-5c through a band pass filter 2 and distributing circuits 3, 4. An I/Q phase discriminating circuit 6 phase-synthesizes the input signal and an output of the delaying circuit, detects them, and outputs an I/Q video signals which have video amplitude being proportional to a phase difference of both the signals and are 90 deg. out-of-phase from each other. Subsequently, this I/Q video output, its addition output and subtraction output are quantitized by positive and negative discrimination slicing circuits 7, 8 and 9, and a quadrant discrimination result by a logical circuit 10 is latched in a latching circuit 13. In this case, the second channel and the first channel are corrected by a result of the third channel and a result of the second channel, respectively, and it is piled up, by which it is possible to obtain an output by split accuracy of the third channel.
JP9141581A 1981-06-11 1981-06-11 Digital output frequency measuring receiver Granted JPS57204464A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9141581A JPS57204464A (en) 1981-06-11 1981-06-11 Digital output frequency measuring receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9141581A JPS57204464A (en) 1981-06-11 1981-06-11 Digital output frequency measuring receiver

Publications (2)

Publication Number Publication Date
JPS57204464A true JPS57204464A (en) 1982-12-15
JPS6134100B2 JPS6134100B2 (en) 1986-08-06

Family

ID=14025739

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9141581A Granted JPS57204464A (en) 1981-06-11 1981-06-11 Digital output frequency measuring receiver

Country Status (1)

Country Link
JP (1) JPS57204464A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4633516A (en) * 1985-05-30 1986-12-30 United States Of America As Represented By The Secretary Of The Air Force Instantaneous frequency measurement receiver with digital processing
US10931294B2 (en) 2019-07-12 2021-02-23 Agency For Defense Development Apparatus and method for measuring frequency of signal

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54143274A (en) * 1978-04-28 1979-11-08 Fujitsu Ltd Frequency analyzer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54143274A (en) * 1978-04-28 1979-11-08 Fujitsu Ltd Frequency analyzer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4633516A (en) * 1985-05-30 1986-12-30 United States Of America As Represented By The Secretary Of The Air Force Instantaneous frequency measurement receiver with digital processing
US10931294B2 (en) 2019-07-12 2021-02-23 Agency For Defense Development Apparatus and method for measuring frequency of signal

Also Published As

Publication number Publication date
JPS6134100B2 (en) 1986-08-06

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