IT1237669B - Data spectrum switching criteria generation and equalisation - Google Patents

Data spectrum switching criteria generation and equalisation

Info

Publication number
IT1237669B
IT1237669B IT02223189A IT2223189A IT1237669B IT 1237669 B IT1237669 B IT 1237669B IT 02223189 A IT02223189 A IT 02223189A IT 2223189 A IT2223189 A IT 2223189A IT 1237669 B IT1237669 B IT 1237669B
Authority
IT
Italy
Prior art keywords
spectrum
distortion
measurements
equalisation
data spectrum
Prior art date
Application number
IT02223189A
Other languages
Italian (it)
Other versions
IT8922231A1 (en
IT8922231A0 (en
Original Assignee
Telettra Lab Telefon
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 Telettra Lab Telefon filed Critical Telettra Lab Telefon
Priority to IT02223189A priority Critical patent/IT1237669B/en
Publication of IT8922231A0 publication Critical patent/IT8922231A0/en
Priority to DE69024613T priority patent/DE69024613T2/en
Priority to EP90119037A priority patent/EP0427951B1/en
Priority to ES90119037T priority patent/ES2081332T3/en
Priority to US07/604,791 priority patent/US5285473A/en
Priority to JP28861390A priority patent/JP3216094B2/en
Publication of IT8922231A1 publication Critical patent/IT8922231A1/en
Application granted granted Critical
Publication of IT1237669B publication Critical patent/IT1237669B/en

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  • Detection And Prevention Of Errors In Transmission (AREA)
  • Noise Elimination (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

The system detects the data spectrum distortion in transmission of digital signals. In partic. distortion due to selective fading for generating a switching criterion and for adaptatively equalising the spectrum. It is based on identifying a dispersion over the whole band or an amplitude distortion over the whole band (that is less sensitive to interference frequencies). The received signal is submitted to two parallel distortions having equal slopes and opposite signs and each one of which is suitable to establish a variation of the spectrum average power in transient condition. The two average powers are measured and the signals arising from these measurements are compared and in case of equivalence or difference of the measurements they shall indicate absence or presence of fading, respectively.
IT02223189A 1989-10-27 1989-10-31 Data spectrum switching criteria generation and equalisation IT1237669B (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
IT02223189A IT1237669B (en) 1989-10-31 1989-10-31 Data spectrum switching criteria generation and equalisation
DE69024613T DE69024613T2 (en) 1989-10-27 1990-10-04 Device for generating switching criteria and for adaptive equalization of data spectra
EP90119037A EP0427951B1 (en) 1989-10-27 1990-10-04 System to generate switching criteria and equalize adaptively in data spectrum
ES90119037T ES2081332T3 (en) 1989-10-27 1990-10-04 SYSTEM TO GENERATE SWITCHING CRITERIA AND TO ADAPTATIVELY EQUALIZE IN A DATA SPECTRUM.
US07/604,791 US5285473A (en) 1989-10-27 1990-10-26 System to generate switching criteria and equalize adaptively in data spectrum
JP28861390A JP3216094B2 (en) 1989-10-27 1990-10-29 Method and apparatus for generating a switching reference to adaptively equalize a data spectrum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT02223189A IT1237669B (en) 1989-10-31 1989-10-31 Data spectrum switching criteria generation and equalisation

Publications (3)

Publication Number Publication Date
IT8922231A0 IT8922231A0 (en) 1989-10-31
IT8922231A1 IT8922231A1 (en) 1991-05-01
IT1237669B true IT1237669B (en) 1993-06-15

Family

ID=11193403

Family Applications (1)

Application Number Title Priority Date Filing Date
IT02223189A IT1237669B (en) 1989-10-27 1989-10-31 Data spectrum switching criteria generation and equalisation

Country Status (1)

Country Link
IT (1) IT1237669B (en)

Also Published As

Publication number Publication date
IT8922231A1 (en) 1991-05-01
IT8922231A0 (en) 1989-10-31

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Legal Events

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0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19961029