FR2365241A1 - Signal phase demodulator circuit - multiplies input signal by specified function and passes output directly, and over sign inverter, to multiplexer - Google Patents

Signal phase demodulator circuit - multiplies input signal by specified function and passes output directly, and over sign inverter, to multiplexer

Info

Publication number
FR2365241A1
FR2365241A1 FR7627860A FR7627860A FR2365241A1 FR 2365241 A1 FR2365241 A1 FR 2365241A1 FR 7627860 A FR7627860 A FR 7627860A FR 7627860 A FR7627860 A FR 7627860A FR 2365241 A1 FR2365241 A1 FR 2365241A1
Authority
FR
France
Prior art keywords
multiplexer
input signal
phase demodulator
specified function
demodulator circuit
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
FR7627860A
Other languages
French (fr)
Other versions
FR2365241B1 (en
Inventor
Jean-Claude Andre Debuisser
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.)
Laboratoire Central de Telecommunications SA
Original Assignee
Laboratoire Central de Telecommunications SA
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 Laboratoire Central de Telecommunications SA filed Critical Laboratoire Central de Telecommunications SA
Priority to FR7627860A priority Critical patent/FR2365241A1/en
Publication of FR2365241A1 publication Critical patent/FR2365241A1/en
Application granted granted Critical
Publication of FR2365241B1 publication Critical patent/FR2365241B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/006—Demodulation of angle-, frequency- or phase- modulated oscillations by sampling the oscillations and further processing the samples, e.g. by computing techniques
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/28—Details of pulse systems
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/006—Signal sampling

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

The phase demodulator has the input signal applied to a sampling coder (4) that multiplies it by an interdigital sampling function. The coder's output passes one way directly to a multiplexer (5) and the other way over a sign inverter to the multiplexer. The interdigital function is given by the sum over all positive and negative values of i, of (-1)1 d(t-i/2fp) where fp is the carrier frequency or a sub-multiple of the carrier frequency . d(t - i/2fp) is the Dirac function.
FR7627860A 1976-09-16 1976-09-16 Signal phase demodulator circuit - multiplies input signal by specified function and passes output directly, and over sign inverter, to multiplexer Granted FR2365241A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7627860A FR2365241A1 (en) 1976-09-16 1976-09-16 Signal phase demodulator circuit - multiplies input signal by specified function and passes output directly, and over sign inverter, to multiplexer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7627860A FR2365241A1 (en) 1976-09-16 1976-09-16 Signal phase demodulator circuit - multiplies input signal by specified function and passes output directly, and over sign inverter, to multiplexer

Publications (2)

Publication Number Publication Date
FR2365241A1 true FR2365241A1 (en) 1978-04-14
FR2365241B1 FR2365241B1 (en) 1980-04-30

Family

ID=9177745

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7627860A Granted FR2365241A1 (en) 1976-09-16 1976-09-16 Signal phase demodulator circuit - multiplies input signal by specified function and passes output directly, and over sign inverter, to multiplexer

Country Status (1)

Country Link
FR (1) FR2365241A1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3473132A (en) * 1967-07-27 1969-10-14 Ibm Digital demodulator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3473132A (en) * 1967-07-27 1969-10-14 Ibm Digital demodulator

Also Published As

Publication number Publication date
FR2365241B1 (en) 1980-04-30

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Legal Events

Date Code Title Description
CA Change of address
TP Transmission of property
ST Notification of lapse