CA2181809A1 - Split Frequency Band Signal Digitizer and Method - Google Patents

Split Frequency Band Signal Digitizer and Method

Info

Publication number
CA2181809A1
CA2181809A1 CA2181809A CA2181809A CA2181809A1 CA 2181809 A1 CA2181809 A1 CA 2181809A1 CA 2181809 A CA2181809 A CA 2181809A CA 2181809 A CA2181809 A CA 2181809A CA 2181809 A1 CA2181809 A1 CA 2181809A1
Authority
CA
Canada
Prior art keywords
band signal
split
frequency band
signal
split frequency
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
CA2181809A
Other languages
French (fr)
Other versions
CA2181809C (en
Inventor
Paul Fielding Smith
Danny Thomas Pinckley
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.)
Motorola Solutions Inc
Original Assignee
Paul Fielding Smith
Motorola, Inc.
Danny Thomas Pinckley
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 Paul Fielding Smith, Motorola, Inc., Danny Thomas Pinckley filed Critical Paul Fielding Smith
Publication of CA2181809A1 publication Critical patent/CA2181809A1/en
Application granted granted Critical
Publication of CA2181809C publication Critical patent/CA2181809C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
    • H04B1/0007—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at radiofrequency or intermediate frequency stage
    • H04B1/0017—Digital filtering
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/1205—Multiplexed conversion systems
    • H03M1/121—Interleaved, i.e. using multiple converters or converter parts for one channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
    • H04B1/0007—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at radiofrequency or intermediate frequency stage
    • H04B1/001—Channel filtering, i.e. selecting a frequency channel within the SDR system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/26—Circuits for superheterodyne receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/22—Arrangements for detecting or preventing errors in the information received using redundant apparatus to increase reliability
    • 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
    • H04L25/14—Channel dividing arrangements, i.e. in which a single bit stream is divided between several baseband channels and reassembled at the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only

Abstract

A split frequency band signal digitizer (10) includes a first mixer (18) for translating a split-band signal (200) about a multiple of the sampling frequency. The split-band signal so translated is then communicated to an analog-to-digital converter (26). The digitized signal is then analyzed to recover an original portion of the split-band signal and a second portion of the signal aliased into a single Nyquist band.
CA002181809A 1994-12-29 1995-11-22 Split frequency band signal digitizer and method Expired - Fee Related CA2181809C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/366,347 1994-12-29
US08/366,347 US5668836A (en) 1994-12-29 1994-12-29 Split frequency band signal digitizer and method
PCT/US1995/015295 WO1996021280A1 (en) 1994-12-29 1995-11-22 Split frequency band signal digitizer and method

Publications (2)

Publication Number Publication Date
CA2181809A1 true CA2181809A1 (en) 1996-07-11
CA2181809C CA2181809C (en) 1999-09-28

Family

ID=23442635

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002181809A Expired - Fee Related CA2181809C (en) 1994-12-29 1995-11-22 Split frequency band signal digitizer and method

Country Status (10)

Country Link
US (1) US5668836A (en)
JP (1) JPH09510075A (en)
CN (1) CN1057413C (en)
CA (1) CA2181809C (en)
DE (1) DE19581508T1 (en)
FI (1) FI962960A (en)
FR (1) FR2729023A1 (en)
GB (1) GB2301500B (en)
SE (1) SE9603088L (en)
WO (1) WO1996021280A1 (en)

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Also Published As

Publication number Publication date
SE9603088D0 (en) 1996-08-27
SE9603088L (en) 1996-10-02
GB9617717D0 (en) 1996-10-02
CA2181809C (en) 1999-09-28
US5668836A (en) 1997-09-16
WO1996021280A1 (en) 1996-07-11
JPH09510075A (en) 1997-10-07
CN1057413C (en) 2000-10-11
GB2301500B (en) 1998-07-01
DE19581508T1 (en) 1997-08-21
FI962960A0 (en) 1996-07-24
FR2729023A1 (en) 1996-07-05
GB2301500A (en) 1996-12-04
CN1142291A (en) 1997-02-05
FI962960A (en) 1996-07-24

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