FI900968A0 - A method for demodulating MSK signals - Google Patents

A method for demodulating MSK signals

Info

Publication number
FI900968A0
FI900968A0 FI900968A FI900968A FI900968A0 FI 900968 A0 FI900968 A0 FI 900968A0 FI 900968 A FI900968 A FI 900968A FI 900968 A FI900968 A FI 900968A FI 900968 A0 FI900968 A0 FI 900968A0
Authority
FI
Finland
Prior art keywords
clock frequency
frequency
msk signals
demodulating
demodulating msk
Prior art date
Application number
FI900968A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI97761C (en
FI97761B (en
Inventor
Otmar Ringelhaan
Horst Fenske
Gerhard Eichiner
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of FI900968A0 publication Critical patent/FI900968A0/en
Application granted granted Critical
Publication of FI97761B publication Critical patent/FI97761B/en
Publication of FI97761C publication Critical patent/FI97761C/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
    • H04L27/2338—Demodulator circuits; Receiver circuits using non-coherent demodulation using sampling

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Circuits Of Receivers In General (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Radio Relay Systems (AREA)

Abstract

The demodulation system converts the received signals into an intermediate frequency using a formula expressed in terms of the clock frequency of the modulated information, with signal sampling using a sampling period which corresponds to the reciprocal of the clock frequency. Pref. the intermediate frequency is obtd. from a quarter wavelength of the clock frequency summated with an odd or even multiple of half the clock frequency.
FI900968A 1989-02-27 1990-02-26 A method for demodulation of MSK signals FI97761C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP89103421 1989-02-27
EP89103421 1989-02-27

Publications (3)

Publication Number Publication Date
FI900968A0 true FI900968A0 (en) 1990-02-26
FI97761B FI97761B (en) 1996-10-31
FI97761C FI97761C (en) 1997-02-10

Family

ID=8201017

Family Applications (1)

Application Number Title Priority Date Filing Date
FI900968A FI97761C (en) 1989-02-27 1990-02-26 A method for demodulation of MSK signals

Country Status (8)

Country Link
EP (1) EP0385074B1 (en)
AT (1) ATE90491T1 (en)
DE (1) DE59001638D1 (en)
DK (1) DK0385074T3 (en)
ES (1) ES2041047T3 (en)
FI (1) FI97761C (en)
NO (1) NO900910L (en)
PT (1) PT93269B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2752348B1 (en) * 1996-08-07 1998-09-18 Telecommunications Sa DEMODULATOR WITH DIGITAL CARRIER AND RHYTHM RECOVERY CIRCUIT

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3969590A (en) * 1975-04-04 1976-07-13 Rockwell International Corporation Surface acoustic wave apparatus

Also Published As

Publication number Publication date
PT93269A (en) 1991-10-31
FI97761C (en) 1997-02-10
PT93269B (en) 1995-12-29
FI97761B (en) 1996-10-31
DE59001638D1 (en) 1993-07-15
EP0385074A1 (en) 1990-09-05
NO900910L (en) 1990-08-28
EP0385074B1 (en) 1993-06-09
NO900910D0 (en) 1990-02-26
ES2041047T3 (en) 1993-11-01
ATE90491T1 (en) 1993-06-15
DK0385074T3 (en) 1993-09-27

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Legal Events

Date Code Title Description
FG Patent granted

Owner name: SIEMENS AKTIENGESELLSCHAFT

BB Publication of examined application
MM Patent lapsed
MM Patent lapsed

Owner name: SIEMENS AKTIENGESELLSCHAFT