GR900100865A - Method and apparatus for digital fomulated reception signals from the high frequency area - Google Patents

Method and apparatus for digital fomulated reception signals from the high frequency area

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Publication number
GR900100865A
GR900100865A GR900100865A GR900100865A GR900100865A GR 900100865 A GR900100865 A GR 900100865A GR 900100865 A GR900100865 A GR 900100865A GR 900100865 A GR900100865 A GR 900100865A GR 900100865 A GR900100865 A GR 900100865A
Authority
GR
Greece
Prior art keywords
signal
digital
fomulated
high frequency
heterodyne
Prior art date
Application number
GR900100865A
Other languages
Greek (el)
Inventor
Ernst Professor Bonek
Arpad-Ludwig Dr Scholtz
Gerhard Dipl-Ing Schultes
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 GR900100865A publication Critical patent/GR900100865A/en

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  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

In a receiver for digitally modulated signals in mobile communication systems, the reception signal can be treated as a complex vector. By means of a mixing stage, (M) the signal is transformed non-coherently as non-heterodyne or heterodyne to the zone base, where an analysis is carried out on an actual and theoretical segment. These segments of the signal are sorted by low pass filters in the low region (frequency) (TP) and digitised by analogue/digital transformers (AD). These analysis values are then converted to a vectorial angle and measurement. The measurement value (B) configures the amplification of the preamplifier (VV) and of the low frequency pass filter (TP), from the difference of the two sequential angle values, (W) the reception data is achieved (D).
GR900100865A 1990-12-17 1990-12-17 Method and apparatus for digital fomulated reception signals from the high frequency area GR900100865A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GR90100865 1990-12-17

Publications (1)

Publication Number Publication Date
GR900100865A true GR900100865A (en) 1992-11-23

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ID=10940272

Family Applications (1)

Application Number Title Priority Date Filing Date
GR900100865A GR900100865A (en) 1990-12-17 1990-12-17 Method and apparatus for digital fomulated reception signals from the high frequency area

Country Status (1)

Country Link
GR (1) GR900100865A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986003356A1 (en) * 1984-11-22 1986-06-05 Devon County Council Data modem system
US4888793A (en) * 1988-05-06 1989-12-19 Motorola, Inc. Phase correcting DPSK/PSK receiver with digitally stored phase correction derived from received data
EP0353779A2 (en) * 1988-08-05 1990-02-07 Nec Corporation Preamble detection circuit for digital communications system
WO1991002421A1 (en) * 1989-08-11 1991-02-21 SIEMENS AKTIENGESELLSCHAFT öSTERREICH Process and device for converting digitally modulated high-frequency reception signals

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986003356A1 (en) * 1984-11-22 1986-06-05 Devon County Council Data modem system
US4888793A (en) * 1988-05-06 1989-12-19 Motorola, Inc. Phase correcting DPSK/PSK receiver with digitally stored phase correction derived from received data
EP0353779A2 (en) * 1988-08-05 1990-02-07 Nec Corporation Preamble detection circuit for digital communications system
WO1991002421A1 (en) * 1989-08-11 1991-02-21 SIEMENS AKTIENGESELLSCHAFT öSTERREICH Process and device for converting digitally modulated high-frequency reception signals

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Proceedings 7th International Conference on Digital Satellite Communications, Munich, DE, 12-16 / 5 / 1986, VDE-Verlag, Berlin, DE, 1986; pages 573-578 Hoeber et al.: "Bandwidth and power efficient satellite TDMA demodulator" *

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