WO2007001786A3 - A reduced complexity recursive least square lattice structure adaptive filter by means of limited recursion of the backward and forward error prediction squares - Google Patents
A reduced complexity recursive least square lattice structure adaptive filter by means of limited recursion of the backward and forward error prediction squares Download PDFInfo
- Publication number
- WO2007001786A3 WO2007001786A3 PCT/US2006/022286 US2006022286W WO2007001786A3 WO 2007001786 A3 WO2007001786 A3 WO 2007001786A3 US 2006022286 W US2006022286 W US 2006022286W WO 2007001786 A3 WO2007001786 A3 WO 2007001786A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- adaptive filter
- backward
- error prediction
- lattice structure
- forward error
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H21/00—Adaptive networks
- H03H21/0012—Digital adaptive filters
- H03H21/0014—Lattice filters
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H21/00—Adaptive networks
- H03H21/0012—Digital adaptive filters
- H03H21/0043—Adaptive algorithms
- H03H2021/0049—Recursive least squares algorithm
Landscapes
- Filters That Use Time-Delay Elements (AREA)
Abstract
A method for reducing a computational complexity of an m-stage adaptive filter is provided by updating recursively forward and backward error prediction square terms for a first portion of a length of the adaptive filter, and keeping the updated forward and backward error prediction square terms constant for a second portion of the length of the adaptive filter.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2006800218486A CN101496001B (en) | 2005-06-20 | 2006-06-08 | A reduced complexity recursive least square lattice structure adaptive filter by means of limited recursion of the backward and forward error prediction squares |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US69223605P | 2005-06-20 | 2005-06-20 | |
US60/692,236 | 2005-06-20 | ||
US11/399,907 US7734466B2 (en) | 2005-06-20 | 2006-04-07 | Reduced complexity recursive least square lattice structure adaptive filter by means of limited recursion of the backward and forward error prediction squares |
US11/399,907 | 2006-04-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2007001786A2 WO2007001786A2 (en) | 2007-01-04 |
WO2007001786A3 true WO2007001786A3 (en) | 2009-04-16 |
Family
ID=37595657
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2006/022286 WO2007001786A2 (en) | 2005-06-20 | 2006-06-08 | A reduced complexity recursive least square lattice structure adaptive filter by means of limited recursion of the backward and forward error prediction squares |
Country Status (2)
Country | Link |
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CN (1) | CN101496001B (en) |
WO (1) | WO2007001786A2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012104828A1 (en) * | 2011-02-03 | 2012-08-09 | Dsp Group Ltd. | A method and apparatus for hierarchical adaptive filtering |
CN105785124A (en) * | 2016-03-07 | 2016-07-20 | 国网技术学院 | Method for measuring harmonics and interharmonics of electric power system through spectrum estimation and cross correlation |
CN110224955B (en) * | 2019-06-19 | 2020-07-03 | 北京邮电大学 | Digital equalizer structure and implementation method |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030035468A1 (en) * | 2001-05-17 | 2003-02-20 | Corbaton Ivan Jesus Fernandez | System and method for adjusting combiner weights using an adaptive algorithm in wireless communications system |
US20040071207A1 (en) * | 2000-11-08 | 2004-04-15 | Skidmore Ian David | Adaptive filter |
US20040210146A1 (en) * | 1991-03-07 | 2004-10-21 | Diab Mohamed K. | Signal processing apparatus |
-
2006
- 2006-06-08 WO PCT/US2006/022286 patent/WO2007001786A2/en active Application Filing
- 2006-06-08 CN CN2006800218486A patent/CN101496001B/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040210146A1 (en) * | 1991-03-07 | 2004-10-21 | Diab Mohamed K. | Signal processing apparatus |
US20040071207A1 (en) * | 2000-11-08 | 2004-04-15 | Skidmore Ian David | Adaptive filter |
US20030035468A1 (en) * | 2001-05-17 | 2003-02-20 | Corbaton Ivan Jesus Fernandez | System and method for adjusting combiner weights using an adaptive algorithm in wireless communications system |
Also Published As
Publication number | Publication date |
---|---|
CN101496001B (en) | 2011-08-03 |
CN101496001A (en) | 2009-07-29 |
WO2007001786A2 (en) | 2007-01-04 |
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