KR20010080180A - 홀수 변환 고속 컨벌루션 - Google Patents
홀수 변환 고속 컨벌루션 Download PDFInfo
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- KR20010080180A KR20010080180A KR1020017004761A KR20017004761A KR20010080180A KR 20010080180 A KR20010080180 A KR 20010080180A KR 1020017004761 A KR1020017004761 A KR 1020017004761A KR 20017004761 A KR20017004761 A KR 20017004761A KR 20010080180 A KR20010080180 A KR 20010080180A
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- South Korea
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
- H03M13/23—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using convolutional codes, e.g. unit memory codes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
- H03H17/0211—Frequency selective networks using specific transformation algorithms, e.g. WALSH functions, Fermat transforms, Mersenne transforms, polynomial transforms, Hilbert transforms
- H03H17/0213—Frequency domain filters using Fourier transforms
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- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Pure & Applied Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Computing Systems (AREA)
- Algebra (AREA)
- Computer Hardware Design (AREA)
- Probability & Statistics with Applications (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Complex Calculations (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Abstract
Description
Claims (8)
- 입력 길이가 n1이고 출력 길이가 n2이며 오버랩(overlap)이 l/m인 변형된 고속 컨벌루션 알고리즘으로 변환된 신호에서의 이용가능한 변환 길이와 오버랩의 수를 증가시키는 방법에 있어서,한쪽(예를 들어, 입력 또는 출력)의 연속적인 블럭 상에 오버랩을 제공하는 단계 - 상기 블럭의 길이는 반드시 동일하지는 않으며, 평균적으로 다른 한쪽(예를 들어, 출력 또는 입력)과 동일한 오버랩을 제공함-; 및연속적인 블럭들 내의 신호를 시간에 맞춰 얼라인하는 단계를 포함하는 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 블럭은 주파수 시프팅되고,상기 주파수 시프팅으로 인한 위상 시프트가 보상되는 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 n1과 n2모두가 2의 제곱승(2x)과 동일한 경우가 아니고,n1또는 n2에 공통 요소가 있는 것을 특징으로 하는 방법.
- 제1항에 있어서, n1과 n2모두는 2의 제곱승(2x)과 동일하고, n1또는 n2에 공통 요소가 없는 것을 특징으로 하는 방법.
- 제1항에 있어서, n1과 n2모두에 공통 요소가 있고, n1과 n2모두가 2의 제곱승(2x)과 동일한 경우가 아닌 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 제공 단계는 상기 블럭들의 오버랩핑 또는 비오버랩핑의 길이를 나타내는 길이 m의 벡터를 생성하는 단계를 더 포함하고, 상기 벡터 요소들의 평균은 l/m이 되고, 상기 벡터내의 오버랩의 시퀀스는 주기적으로 반복되는 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 시간 얼라인 단계는 사인 곡선에 의해 서로 다른 블럭들에 기인한 DFT 샘플들을, 서로 다른 지연의 DFT들에 대응하는 서로 다른 증분의 위상 시프트와 승산하는 단계를 더 포함하는 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 시간 얼라인 단계는 주파수 도메인 내의 필터 응답의 계수 H(k)를, 동일한 증분의 위상 시프트와 승산하는 단계를 더 포함하는 것을 특징으로 하는 방법.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/173,803 | 1998-10-16 | ||
US09/173,803 US6324559B1 (en) | 1998-10-16 | 1998-10-16 | Odd-transform fast convolution |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20010080180A true KR20010080180A (ko) | 2001-08-22 |
KR100655829B1 KR100655829B1 (ko) | 2006-12-12 |
Family
ID=22633563
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020017004761A KR100655829B1 (ko) | 1998-10-16 | 1999-09-24 | 알고리즘으로 변환된 신호의 변환 길이와 오버랩 수 증가 방법 |
Country Status (9)
Country | Link |
---|---|
US (1) | US6324559B1 (ko) |
EP (1) | EP1121754B1 (ko) |
JP (1) | JP4373011B2 (ko) |
KR (1) | KR100655829B1 (ko) |
CN (1) | CN100426672C (ko) |
AU (1) | AU765761B2 (ko) |
CA (1) | CA2346280C (ko) |
DE (1) | DE69936460T2 (ko) |
WO (1) | WO2000024125A1 (ko) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6169789B1 (en) * | 1996-12-16 | 2001-01-02 | Sanjay K. Rao | Intelligent keyboard system |
US6480535B1 (en) * | 1999-07-26 | 2002-11-12 | Sony Corporation | Generating multi-channel outputs simultaneously in a receiver using polyphase filter |
GB2362279B (en) * | 2000-05-12 | 2004-12-29 | Global Silicon Ltd | Radio receiver |
FR2817100B1 (fr) * | 2000-11-17 | 2003-08-22 | Cit Alcatel | Procede pour optimiser les performances d'un emetteur pour systeme de radiocommunications mobiles |
GB0116493D0 (en) | 2001-07-06 | 2001-08-29 | Koninkl Philips Electronics Nv | Receiver having an adaptive filter and method of optimising the filter |
EP1303142B1 (fr) * | 2001-09-25 | 2006-04-26 | Koninklijke Philips Electronics N.V. | Circuit de filtrage de données vidéo dans le domaine fréquentiel. |
US6792057B2 (en) * | 2002-08-29 | 2004-09-14 | Bae Systems Information And Electronic Systems Integration Inc | Partial band reconstruction of frequency channelized filters |
JP3962785B2 (ja) * | 2003-07-02 | 2007-08-22 | テクトロニクス・インターナショナル・セールス・ゲーエムベーハー | シグナル・アナライザ及び周波数領域データ生成方法 |
US7480689B2 (en) * | 2004-11-19 | 2009-01-20 | Massachusetts Institute Of Technology | Systolic de-multiplexed finite impulse response filter array architecture for linear and non-linear implementations |
US8005176B2 (en) * | 2007-02-15 | 2011-08-23 | Massachusetts Institute Of Technology | Architecture for systolic nonlinear filter processors |
JP2011004264A (ja) * | 2009-06-19 | 2011-01-06 | Fujitsu Ltd | ディジタル信号処理装置およびディジタル信号処理方法 |
PL2691951T3 (pl) | 2011-03-28 | 2017-03-31 | Dolby Laboratories Licensing Corporation | Transformacja o zmniejszonej złożoności dla kanału efektów o niskiej częstotliwości |
JP6012066B2 (ja) * | 2012-08-01 | 2016-10-25 | Necスペーステクノロジー株式会社 | チャネライザ及び信号処理方法 |
US9286268B2 (en) * | 2013-12-12 | 2016-03-15 | Brno University of Technology | Method and an apparatus for fast convolution of signals with a one-sided exponential function |
US9148162B2 (en) * | 2014-01-15 | 2015-09-29 | Guzik Technical Enterprises | Digital down converter with equalization |
US10044488B1 (en) * | 2015-04-21 | 2018-08-07 | Raytheon Company | Interpolated channelizer with compensation for non-linear phase offsets |
US10211919B2 (en) * | 2015-07-09 | 2019-02-19 | Ciena Corporation | Mitigation of narrow-band degradations in a broadband communication system |
FR3049131B1 (fr) * | 2016-03-18 | 2018-04-06 | Thales | Procede de filtrage d'un signal d'entree numerique et filtre associe |
CN107911323A (zh) * | 2017-11-03 | 2018-04-13 | 西安电子科技大学 | 基于部分解耦合的联合频相估计方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5270953A (en) * | 1991-05-23 | 1993-12-14 | Rockwell International Corporation | Fast convolution multiplier |
FR2702612B1 (fr) * | 1993-03-10 | 1995-06-09 | France Telecom | Procede et dispositif de filtrage d'un signal temporel numerique, et application a la correction d'echos dans un canal de transmission . |
US5537435A (en) | 1994-04-08 | 1996-07-16 | Carney; Ronald | Transceiver apparatus employing wideband FFT channelizer with output sample timing adjustment and inverse FFT combiner for multichannel communication network |
US6134571A (en) * | 1998-04-29 | 2000-10-17 | Hewlett-Packard Company | Implicit DST-based filter operating in the DCT domain |
SE9802059D0 (sv) | 1998-06-10 | 1998-06-10 | Ericsson Telefon Ab L M | Digital channeliser and De-shanneliser |
-
1998
- 1998-10-16 US US09/173,803 patent/US6324559B1/en not_active Expired - Lifetime
-
1999
- 1999-09-24 WO PCT/SE1999/001694 patent/WO2000024125A1/en active IP Right Grant
- 1999-09-24 CN CNB99814505XA patent/CN100426672C/zh not_active Expired - Lifetime
- 1999-09-24 JP JP2000577770A patent/JP4373011B2/ja not_active Expired - Lifetime
- 1999-09-24 KR KR1020017004761A patent/KR100655829B1/ko active IP Right Grant
- 1999-09-24 DE DE69936460T patent/DE69936460T2/de not_active Expired - Lifetime
- 1999-09-24 CA CA2346280A patent/CA2346280C/en not_active Expired - Lifetime
- 1999-09-24 EP EP99970801A patent/EP1121754B1/en not_active Expired - Lifetime
- 1999-09-24 AU AU14213/00A patent/AU765761B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
AU1421300A (en) | 2000-05-08 |
CN1330809A (zh) | 2002-01-09 |
CA2346280C (en) | 2012-04-10 |
CN100426672C (zh) | 2008-10-15 |
CA2346280A1 (en) | 2000-04-27 |
JP2002528947A (ja) | 2002-09-03 |
EP1121754B1 (en) | 2007-07-04 |
DE69936460T2 (de) | 2008-03-06 |
KR100655829B1 (ko) | 2006-12-12 |
AU765761B2 (en) | 2003-09-25 |
EP1121754A1 (en) | 2001-08-08 |
JP4373011B2 (ja) | 2009-11-25 |
US6324559B1 (en) | 2001-11-27 |
WO2000024125A1 (en) | 2000-04-27 |
DE69936460D1 (de) | 2007-08-16 |
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