JPS54134509A - Transmission unit of single side-band frequency multiple signal - Google Patents

Transmission unit of single side-band frequency multiple signal

Info

Publication number
JPS54134509A
JPS54134509A JP4206978A JP4206978A JPS54134509A JP S54134509 A JPS54134509 A JP S54134509A JP 4206978 A JP4206978 A JP 4206978A JP 4206978 A JP4206978 A JP 4206978A JP S54134509 A JPS54134509 A JP S54134509A
Authority
JP
Japan
Prior art keywords
sampling
2xlxn
band
frequency
band 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
JP4206978A
Other languages
Japanese (ja)
Other versions
JPS6046581B2 (en
Inventor
Akira Ishimatsu
Kenichi Sato
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry Co Ltd
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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP4206978A priority Critical patent/JPS6046581B2/en
Publication of JPS54134509A publication Critical patent/JPS54134509A/en
Publication of JPS6046581B2 publication Critical patent/JPS6046581B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/04—Frequency-transposition arrangements
    • H04J1/05—Frequency-transposition arrangements using digital techniques

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:To reduce the reguired number of multiplications in the unit which uses the digital signal processing technique to generate signal side-band frequency multiple signals. CONSTITUTION:Signals having a sampling frequency fs of 8K Hz and a signal band width of 0.3 to 3.4K Hz are inputted to input terminals 1.1 to 1.N. After sampling the impulse response of a band limiting filter by sampling frequcncy Nxfs, synthesizing circuits 9.1 and 9.2 which are constituted by multipliers and adders fundamentally generate internally (2XLXN)-number sequences Hn which are outputted by subjecting the sampling result to discrete Fourier conversion at (2XLXN)-number points. Further, in synthesizing circuits, output (2XL)-number sequences of odd or even-channel discrete Fourier converter circuits 7.1, 7.2... or 8.1, 8.3... are arranged repeatedly on the frequency base.
JP4206978A 1978-04-12 1978-04-12 Single-side frequency multiplex signal transmitter Expired JPS6046581B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4206978A JPS6046581B2 (en) 1978-04-12 1978-04-12 Single-side frequency multiplex signal transmitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4206978A JPS6046581B2 (en) 1978-04-12 1978-04-12 Single-side frequency multiplex signal transmitter

Publications (2)

Publication Number Publication Date
JPS54134509A true JPS54134509A (en) 1979-10-19
JPS6046581B2 JPS6046581B2 (en) 1985-10-16

Family

ID=12625786

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4206978A Expired JPS6046581B2 (en) 1978-04-12 1978-04-12 Single-side frequency multiplex signal transmitter

Country Status (1)

Country Link
JP (1) JPS6046581B2 (en)

Also Published As

Publication number Publication date
JPS6046581B2 (en) 1985-10-16

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