JPH0423858B2 - - Google Patents

Info

Publication number
JPH0423858B2
JPH0423858B2 JP57174337A JP17433782A JPH0423858B2 JP H0423858 B2 JPH0423858 B2 JP H0423858B2 JP 57174337 A JP57174337 A JP 57174337A JP 17433782 A JP17433782 A JP 17433782A JP H0423858 B2 JPH0423858 B2 JP H0423858B2
Authority
JP
Japan
Prior art keywords
output
input
intersymbol interference
determination device
phase
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.)
Expired - Lifetime
Application number
JP57174337A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5963847A (ja
Inventor
Kojiro Watanabe
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.)
NEC Corp
Original Assignee
Nippon Electric 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 Nippon Electric Co Ltd filed Critical Nippon Electric Co Ltd
Priority to JP17433782A priority Critical patent/JPS5963847A/ja
Priority to DE8383109861T priority patent/DE3381073D1/de
Priority to EP83109861A priority patent/EP0105513B1/en
Priority to CA000438337A priority patent/CA1224531A/en
Priority to US06/539,017 priority patent/US4542514A/en
Priority to AU19863/83A priority patent/AU555705B2/en
Publication of JPS5963847A publication Critical patent/JPS5963847A/ja
Publication of JPH0423858B2 publication Critical patent/JPH0423858B2/ja
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/20Arrangements for detecting or preventing errors in the information received using signal quality detector
    • H04L1/206Arrangements for detecting or preventing errors in the information received using signal quality detector for modulated signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/32Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38Demodulator circuits; Receiver circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
JP17433782A 1982-10-04 1982-10-04 雑音測定装置 Granted JPS5963847A (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP17433782A JPS5963847A (ja) 1982-10-04 1982-10-04 雑音測定装置
DE8383109861T DE3381073D1 (de) 1982-10-04 1983-10-03 Verfahren zur qualitaetsmessung eines empfangssignals eines empfaengers in einem zweidimensionalen linear modulierten datenuebertragungssystem.
EP83109861A EP0105513B1 (en) 1982-10-04 1983-10-03 Method of measuring quality of a signal received by a receiver of a two-dimensional linear modulation data communication system
CA000438337A CA1224531A (en) 1982-10-04 1983-10-04 Method of measuring quality of a signal received by a receiver of a two-dimensional linear modulation data communication system
US06/539,017 US4542514A (en) 1982-10-04 1983-10-04 Method of measuring quality of a signal received by a receiver of a two-dimensional linear modulation data communication system
AU19863/83A AU555705B2 (en) 1982-10-04 1983-10-05 Qam quality monitoring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17433782A JPS5963847A (ja) 1982-10-04 1982-10-04 雑音測定装置

Publications (2)

Publication Number Publication Date
JPS5963847A JPS5963847A (ja) 1984-04-11
JPH0423858B2 true JPH0423858B2 (enrdf_load_stackoverflow) 1992-04-23

Family

ID=15976869

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17433782A Granted JPS5963847A (ja) 1982-10-04 1982-10-04 雑音測定装置

Country Status (1)

Country Link
JP (1) JPS5963847A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7773950B2 (en) 2004-06-16 2010-08-10 Telefonaktiebolaget Lm Ericsson (Publ) Benign interference suppression for received signal quality estimation

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2366752A2 (fr) * 1976-09-30 1978-04-28 Trt Telecom Radio Electr Dispositif detecteur de derangement d'un systeme de transmission de donnees utilisant la modulation de phase

Also Published As

Publication number Publication date
JPS5963847A (ja) 1984-04-11

Similar Documents

Publication Publication Date Title
EP0105513B1 (en) Method of measuring quality of a signal received by a receiver of a two-dimensional linear modulation data communication system
US4577309A (en) Method and apparatus for measuring distant echo delay in an echo cancelling arrangement
US5309484A (en) Method and apparatus for asynchronous timing recovery using interpolation filter
CA1171470A (en) Fast start-up system for transversal equalizers
EP0333227B1 (en) Echo canceller
EP0153194B1 (en) Apparatus for cancelling periodic carrier phase jitters
EP0300427A1 (en) Echo canceller
US4091240A (en) Bit error rate performance monitor units in digital transmission links
JPH0423858B2 (enrdf_load_stackoverflow)
JP7473020B2 (ja) 位相シフト検出装置及び位相シフト検出方法
EP0740443B1 (en) Method and circuit arrangement for compensating for delayed components in transmission signal
US5745549A (en) Line break detection device and modem comprising such a device
US7251213B2 (en) Method for remote measurement of echo path delay
JP4009143B2 (ja) 遅延プロファイル測定装置および遅延プロファイル測定方法
US11558126B2 (en) Echo estimation system and echo estimation method
FI73553B (fi) Anordning foer ekofasutjaemning och dess tillaempning pao ekoeliminatorer.
JPS6232731A (ja) 信号エネルギ低下検出装置
JP2839901B2 (ja) データ伝送システムのs/nモニター方式
JPH0423859B2 (enrdf_load_stackoverflow)
EP0823795A2 (en) Path-diversity method and system for spread spectrum receivers
JPH0634485B2 (ja) ジッタキャンセラ−
JPH0740680B2 (ja) ダブルト−ク検出方法
JPH02143615A (ja) エコー除去型伝送装置
JPH1082809A (ja) 干渉量推定器
JP3184540B2 (ja) エコーキャンセラ