CA1157917A - Fast learn digital adaptive equalizer - Google Patents
Fast learn digital adaptive equalizerInfo
- Publication number
- CA1157917A CA1157917A CA000323512A CA323512A CA1157917A CA 1157917 A CA1157917 A CA 1157917A CA 000323512 A CA000323512 A CA 000323512A CA 323512 A CA323512 A CA 323512A CA 1157917 A CA1157917 A CA 1157917A
- Authority
- CA
- Canada
- Prior art keywords
- signal
- samples
- sampling
- phase
- testing
- 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
Links
- 230000003044 adaptive effect Effects 0.000 title abstract description 6
- 238000005070 sampling Methods 0.000 claims abstract description 82
- 230000004044 response Effects 0.000 claims abstract description 76
- 238000012360 testing method Methods 0.000 claims abstract description 73
- 239000011159 matrix material Substances 0.000 claims abstract description 35
- 230000002596 correlated effect Effects 0.000 claims abstract description 6
- 238000012549 training Methods 0.000 claims description 53
- 238000000034 method Methods 0.000 claims description 32
- 238000004364 calculation method Methods 0.000 claims description 20
- 238000004891 communication Methods 0.000 claims description 12
- 238000012935 Averaging Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 5
- 230000000977 initiatory effect Effects 0.000 claims description 4
- 238000012937 correction Methods 0.000 claims 20
- 230000015572 biosynthetic process Effects 0.000 abstract description 5
- 239000000523 sample Substances 0.000 description 35
- 238000010586 diagram Methods 0.000 description 5
- 230000003111 delayed effect Effects 0.000 description 4
- UBWXUGDQUBIEIZ-QNTYDACNSA-N nandrolone phenpropionate Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@H]4CCC(=O)C=C4CC3)CC[C@@]21C)C(=O)CCC1=CC=CC=C1 UBWXUGDQUBIEIZ-QNTYDACNSA-N 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 101150087426 Gnal gene Proteins 0.000 description 2
- 238000013500 data storage Methods 0.000 description 2
- 241000282326 Felis catus Species 0.000 description 1
- 241000257303 Hymenoptera Species 0.000 description 1
- 241000950638 Symphysodon discus Species 0.000 description 1
- 241000876472 Umma Species 0.000 description 1
- 229960001948 caffeine Drugs 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- RYYVLZVUVIJVGH-UHFFFAOYSA-N trimethylxanthine Natural products CN1C(=O)N(C)C(=O)C2=C1N=CN2C RYYVLZVUVIJVGH-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
- H04L25/03114—Arrangements for removing intersymbol interference operating in the time domain non-adaptive, i.e. not adjustable, manually adjustable, or adjustable only during the reception of special signals
- H04L25/03133—Arrangements for removing intersymbol interference operating in the time domain non-adaptive, i.e. not adjustable, manually adjustable, or adjustable only during the reception of special signals with a non-recursive structure
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Filters That Use Time-Delay Elements (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Dc Digital Transmission (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000410834A CA1162254A (en) | 1978-04-26 | 1982-09-03 | Method and apparatus for detecting the carrier only signal in an equaliser |
| CA000410833A CA1159908A (en) | 1978-04-26 | 1982-09-03 | Apparatus and method for adjusting the timing of a sampling signal |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US90026578A | 1978-04-26 | 1978-04-26 | |
| US900,265 | 1978-04-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1157917A true CA1157917A (en) | 1983-11-29 |
Family
ID=25412250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000323512A Expired CA1157917A (en) | 1978-04-26 | 1979-03-15 | Fast learn digital adaptive equalizer |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS556989A (OSRAM) |
| BE (1) | BE875902A (OSRAM) |
| CA (1) | CA1157917A (OSRAM) |
| CH (1) | CH645764A5 (OSRAM) |
| DE (1) | DE2911845A1 (OSRAM) |
| FR (3) | FR2433865A1 (OSRAM) |
| GB (5) | GB2076266A (OSRAM) |
| SE (1) | SE458327B (OSRAM) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57162515A (en) * | 1981-03-31 | 1982-10-06 | Fujitsu Ltd | Automatic equalizer for transmission of data |
| DE3377967D1 (en) * | 1983-09-21 | 1988-10-13 | Trw Inc | Improved modem signal acquisition technique |
| JP2986488B2 (ja) * | 1989-10-17 | 1999-12-06 | 日本電信電話株式会社 | 等化器 |
| US20070025475A1 (en) * | 2005-07-28 | 2007-02-01 | Symbol Technologies, Inc. | Method and apparatus for data signal processing in wireless RFID systems |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3962637A (en) * | 1974-11-11 | 1976-06-08 | Hycom Incorporated | Ultrafast adaptive digital modem |
-
1979
- 1979-03-15 CA CA000323512A patent/CA1157917A/en not_active Expired
- 1979-03-26 DE DE19792911845 patent/DE2911845A1/de not_active Ceased
- 1979-04-12 GB GB8118511A patent/GB2076266A/en not_active Withdrawn
- 1979-04-12 GB GB8118512A patent/GB2075806B/en not_active Expired
- 1979-04-12 GB GB7913018A patent/GB2022376B/en not_active Expired
- 1979-04-12 GB GB8118514A patent/GB2075808B/en not_active Expired
- 1979-04-12 GB GB8118513A patent/GB2075807B/en not_active Expired
- 1979-04-25 FR FR7910536A patent/FR2433865A1/fr active Granted
- 1979-04-25 JP JP5131679A patent/JPS556989A/ja active Granted
- 1979-04-25 SE SE7903648A patent/SE458327B/sv not_active IP Right Cessation
- 1979-04-25 CH CH388379A patent/CH645764A5/de not_active IP Right Cessation
- 1979-04-26 BE BE0/194880A patent/BE875902A/xx not_active IP Right Cessation
- 1979-12-26 FR FR7931662A patent/FR2437747B1/fr not_active Expired
- 1979-12-26 FR FR7931663A patent/FR2435870A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| GB2075806B (en) | 1983-02-23 |
| GB2075807B (en) | 1983-02-23 |
| JPS556989A (en) | 1980-01-18 |
| FR2435870B1 (OSRAM) | 1983-12-30 |
| BE875902A (fr) | 1979-08-16 |
| GB2076266A (en) | 1981-11-25 |
| GB2075808B (en) | 1983-03-02 |
| GB2075807A (en) | 1981-11-18 |
| FR2433865A1 (fr) | 1980-03-14 |
| GB2075808A (en) | 1981-11-18 |
| FR2437747B1 (OSRAM) | 1986-10-17 |
| FR2435870A1 (fr) | 1980-04-04 |
| FR2437747A1 (OSRAM) | 1980-04-25 |
| CH645764A5 (de) | 1984-10-15 |
| FR2433865B1 (OSRAM) | 1983-12-30 |
| GB2022376A (en) | 1979-12-12 |
| JPH0152944B2 (OSRAM) | 1989-11-10 |
| GB2022376B (en) | 1982-10-06 |
| DE2911845A1 (de) | 1979-11-08 |
| GB2075806A (en) | 1981-11-18 |
| SE7903648L (sv) | 1980-01-11 |
| SE458327B (sv) | 1989-03-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |