JPH0234553B2 - - Google Patents

Info

Publication number
JPH0234553B2
JPH0234553B2 JP59111382A JP11138284A JPH0234553B2 JP H0234553 B2 JPH0234553 B2 JP H0234553B2 JP 59111382 A JP59111382 A JP 59111382A JP 11138284 A JP11138284 A JP 11138284A JP H0234553 B2 JPH0234553 B2 JP H0234553B2
Authority
JP
Japan
Prior art keywords
value
signal point
received signal
divided
coordinate
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
JP59111382A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60254952A (ja
Inventor
Chihiro Endo
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP59111382A priority Critical patent/JPS60254952A/ja
Publication of JPS60254952A publication Critical patent/JPS60254952A/ja
Publication of JPH0234553B2 publication Critical patent/JPH0234553B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
JP59111382A 1984-05-31 1984-05-31 受信信号判定方式 Granted JPS60254952A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59111382A JPS60254952A (ja) 1984-05-31 1984-05-31 受信信号判定方式

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59111382A JPS60254952A (ja) 1984-05-31 1984-05-31 受信信号判定方式

Publications (2)

Publication Number Publication Date
JPS60254952A JPS60254952A (ja) 1985-12-16
JPH0234553B2 true JPH0234553B2 (enrdf_load_stackoverflow) 1990-08-03

Family

ID=14559760

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59111382A Granted JPS60254952A (ja) 1984-05-31 1984-05-31 受信信号判定方式

Country Status (1)

Country Link
JP (1) JPS60254952A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03293251A (ja) * 1990-04-12 1991-12-24 Mitsubishi Electric Corp 記録装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR910009674B1 (ko) * 1987-03-20 1991-11-25 후지쓰 가부시끼가이샤 디지탈 복조장치

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03293251A (ja) * 1990-04-12 1991-12-24 Mitsubishi Electric Corp 記録装置

Also Published As

Publication number Publication date
JPS60254952A (ja) 1985-12-16

Similar Documents

Publication Publication Date Title
US3956623A (en) Digital phase detector
US4965641A (en) Processor modem
US4630287A (en) Secondary channel signalling in a QAM data point constellation
JPS6324342B2 (enrdf_load_stackoverflow)
CA1258537A (en) Apparatus and method for approximating the magnitude of a complex number
US5321799A (en) Signalling transition control in a modulated-signal communications system
WO1992002092A1 (en) Coded qam system
EP0172532A2 (en) Waveform shaping apparatus
HK1002843B (en) Coded qam system
JPH0234553B2 (enrdf_load_stackoverflow)
CN103841075B (zh) 调制映射的方法、设备及系统，解映射的方法及设备
CA1087736A (en) Statistical data detection method and apparatus
JP3185867B2 (ja) 誤差検出方法および装置、信号復調方法および装置
US6370201B1 (en) Simplified branch metric calculation in pragmatic trellis decoders
US5568517A (en) Decoding device for performing amplitude-phase demodulation and viterbi decoding
CA1083227A (en) Method and apparatus for performing binary equalization in voice-band phase-modulation modems
JPH01151307A (ja) デジタルｆｍ復調装置
JPS5854703B2 (ja) 判定回路
US6785343B1 (en) Rectangular-to-polar conversion angle quantizer
US3821481A (en) Three channel psk data modem apparatus
Petroelje IMBEDDING GRAPHS IN PSEUDOSURFACES.
CN101631326B (zh) 基于正交幅度的优化解调方法
GB1502273A (en) Phase demodulation systems
JPS6010855A (ja) デ−タ伝送の符号判定方法
CN116319231A (zh) 频偏导致的qam星座图旋转估计方法、存储介质及设备