FI940392A - Krets för generering av en fasdifferenssignal - Google Patents

Krets för generering av en fasdifferenssignal Download PDF

Info

Publication number
FI940392A
FI940392A FI940392A FI940392A FI940392A FI 940392 A FI940392 A FI 940392A FI 940392 A FI940392 A FI 940392A FI 940392 A FI940392 A FI 940392A FI 940392 A FI940392 A FI 940392A
Authority
FI
Finland
Prior art keywords
phase difference
signal generator
difference signal
generator circuit
circuit
Prior art date
Application number
FI940392A
Other languages
English (en)
Finnish (fi)
Other versions
FI940392A0 (sv
Inventor
Joannes Mathilda Jos Sevenhans
Peter Paul Frans Reusens
Original Assignee
Alcatel Nv
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 Alcatel Nv filed Critical Alcatel Nv
Publication of FI940392A0 publication Critical patent/FI940392A0/sv
Publication of FI940392A publication Critical patent/FI940392A/sv

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
    • H04L25/061—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing hard decisions only; arrangements for tracking or suppressing unwanted low frequency components, e.g. removal of dc offset
    • 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
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2003—Modulator circuits; Transmitter circuits for continuous phase modulation
    • H04L27/2007—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained
    • H04L27/2017—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained in which the phase changes are non-linear, e.g. generalized and Gaussian minimum shift keying, tamed frequency modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
FI940392A 1993-01-28 1994-01-26 Krets för generering av en fasdifferenssignal FI940392A (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP93200224A EP0608577A1 (en) 1993-01-28 1993-01-28 GMSK modulator with automatic calibration

Publications (2)

Publication Number Publication Date
FI940392A0 FI940392A0 (sv) 1994-01-26
FI940392A true FI940392A (sv) 1994-07-29

Family

ID=8213594

Family Applications (1)

Application Number Title Priority Date Filing Date
FI940392A FI940392A (sv) 1993-01-28 1994-01-26 Krets för generering av en fasdifferenssignal

Country Status (4)

Country Link
EP (1) EP0608577A1 (sv)
JP (1) JPH077530A (sv)
CA (1) CA2114384A1 (sv)
FI (1) FI940392A (sv)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0707379A1 (en) * 1994-10-11 1996-04-17 BELL TELEPHONE MANUFACTURING COMPANY Naamloze Vennootschap Tunable quadrature phase shifter
US5995541A (en) * 1995-10-13 1999-11-30 Philips Electronics North America Corporation Method and apparatus for self-calibration and testing of ZPSK transmitter/receiver IC's
US5901346A (en) * 1996-12-11 1999-05-04 Motorola, Inc. Method and apparatus utilizing a compensated multiple output signal source
GB2334187A (en) * 1998-02-04 1999-08-11 Motorola Ltd Quadrature modulator with automatic compensation
FI107100B (sv) 1999-03-26 2001-05-31 Nokia Networks Oy Korrigering av en I/Q-modulators fas- och amplitud obalans
FI990680A (sv) 1999-03-26 2000-09-27 Nokia Networks Oy Korrigering av en I/Q-modulators olinjäritet
FI107212B (sv) 1999-03-26 2001-06-15 Nokia Networks Oy Korrigering av I/Q-modulators likspänningsförflyttning
HUP0204076A2 (en) * 1999-11-09 2003-04-28 Siemens Ag Method and test device for determining and correcting an offset in direct voltage on a modulator
CN102291365B (zh) * 2010-06-21 2015-04-01 中兴通讯股份有限公司 基于i/q调制解调器的调制解调方法及装置
CN115080498B (zh) * 2022-07-27 2022-11-08 成都奇芯微电子有限公司 基于卫星导航应用的信号数据存储方法以及存储芯片

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6436153A (en) * 1987-07-31 1989-02-07 Nec Corp Quadruple phase modulator
FR2641923B1 (fr) * 1989-01-19 1991-03-22 Alcatel Thomson Faisceaux Procede d'asservissement des parametres d'un modulateur a 2n etats de phase et d'amplitude, et dispositif de mise en oeuvre de ce procede

Also Published As

Publication number Publication date
FI940392A0 (sv) 1994-01-26
EP0608577A1 (en) 1994-08-03
JPH077530A (ja) 1995-01-10
CA2114384A1 (en) 1994-07-29

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