CA1287404C - Codage de signaux numeriques - Google Patents

Codage de signaux numeriques

Info

Publication number
CA1287404C
CA1287404C CA000557807A CA557807A CA1287404C CA 1287404 C CA1287404 C CA 1287404C CA 000557807 A CA000557807 A CA 000557807A CA 557807 A CA557807 A CA 557807A CA 1287404 C CA1287404 C CA 1287404C
Authority
CA
Canada
Prior art keywords
state
states
signal
diagram
coder
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 - Fee Related
Application number
CA000557807A
Other languages
English (en)
Inventor
John D. Brownlie
Barry G.W. Lloyd
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.)
British Telecommunications PLC
Original Assignee
British Telecommunications PLC
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 British Telecommunications PLC filed Critical British Telecommunications PLC
Priority to CA000557807A priority Critical patent/CA1287404C/fr
Application granted granted Critical
Publication of CA1287404C publication Critical patent/CA1287404C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Error Detection And Correction (AREA)
CA000557807A 1988-02-01 1988-02-01 Codage de signaux numeriques Expired - Fee Related CA1287404C (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA000557807A CA1287404C (fr) 1988-02-01 1988-02-01 Codage de signaux numeriques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA000557807A CA1287404C (fr) 1988-02-01 1988-02-01 Codage de signaux numeriques

Publications (1)

Publication Number Publication Date
CA1287404C true CA1287404C (fr) 1991-08-06

Family

ID=4137356

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000557807A Expired - Fee Related CA1287404C (fr) 1988-02-01 1988-02-01 Codage de signaux numeriques

Country Status (1)

Country Link
CA (1) CA1287404C (fr)

Similar Documents

Publication Publication Date Title
AU591823B2 (en) Digital signal coding
US5548615A (en) Methods and apparatus for rotationally invariant multilevel coding
Wei Trellis-coded modulation with multidimensional constellations
US4534040A (en) Method and apparatus for coding a binary signal
US5408499A (en) Multilevel code for transmission device
CA1248182A (fr) Systemes de communication multidimensionnels a codage convolutinnel
CA2203899A1 (fr) Modulation cyclique a code treillis
US6977972B1 (en) Method of hybrid soft/hard decision demodulation of signals with multilevel modulation
JPH07245635A (ja) 信号点マッピング方法および信号点検出方法
US4489418A (en) Differential encoding technique
CA2088062C (fr) Systeme code de modulation d'amplitude en quadrature
KR100195177B1 (ko) 트렐리스 부호화 변조시스템
Kasami et al. On linear structure and phase rotation invariant properties of block M-PSK modulation codes
US6745365B2 (en) Coder with error correction, decoder with error correction and data transmission apparatus using the coder and decoder
CA1287404C (fr) Codage de signaux numeriques
JP3421317B2 (ja) 誤り訂正符号器及び誤り訂正復号器並びに誤り訂正方式の伝送装置
RU2038695C1 (ru) Устройство для кодирования сверточным кодом
Sterian Wei-type trellis-coded modulation with 2N-dimensional rectangular constellation for N not a power of two
Williams Low complexity block coded modulation
JP3854617B2 (ja) 誤り訂正符号器及び誤り訂正復号器並びに誤り訂正方式の伝送装置
JP3667736B2 (ja) 誤り訂正符号器及び誤り訂正復号器並びに誤り訂正方式の伝送装置
Rajpal et al. Multidimensional trellis coded phase modulation using a multilevel concatenation approach. I. Code design
JPH0795762B2 (ja) 多値ｑａｍ通信方式
Kim Channel coding for video transmission over unknown channels
Rajpal Low complexity and high performance coded modulation systems

Legal Events

Date Code Title Description
MKLA Lapsed