BR9804822A - Método e aparelho correlacionador - Google Patents
Método e aparelho correlacionadorInfo
- Publication number
- BR9804822A BR9804822A BR9804822-8A BR9804822A BR9804822A BR 9804822 A BR9804822 A BR 9804822A BR 9804822 A BR9804822 A BR 9804822A BR 9804822 A BR9804822 A BR 9804822A
- Authority
- BR
- Brazil
- Prior art keywords
- complement
- added
- products
- data sequence
- unsigned
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
- G06F17/15—Correlation function computation including computation of convolution operations
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Computational Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Data Mining & Analysis (AREA)
- Algebra (AREA)
- Databases & Information Systems (AREA)
- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- Computing Systems (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Complex Calculations (AREA)
Abstract
Patente de Invenção: <B>''MéTODO E APARELHO CORRELACIONADOR''<D>. Um dispositivo correlacionador digital programável, e método de correlação associado, com uma estrutura muito eficiente. Segundo um aspecto, dois ou mais correlacionadores compartilham de um registrador de deslocamento de seq³ência de dados comum. Segundo um outro aspecto, o registrador de deslocamento de seq³ência de dados é constituído por módulos de memória de acesso aleatório (RAM) que permitem a construção eficaz em dispositivos lógicos de disposição de porta programável de campo (FPGA). Amostras de dados de complemento de dois são multiplicadas por uma seq³ência de referência para gerar produtos de complemento de dois inacabados, os produtos são somados com aritmética sem sinal num somador que contém contadores de população, e um fator de correção é adicionado após todos os outros cálculos estarem completos, para converter o resultado sem sinal de volta para um número de complemento de dois.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US4283697P | 1997-04-09 | 1997-04-09 | |
US09/050,114 US6148313A (en) | 1997-04-09 | 1998-03-30 | Correlator method and apparatus |
PCT/US1998/007271 WO1998045954A2 (en) | 1997-04-09 | 1998-04-07 | Correlator method and apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9804822A true BR9804822A (pt) | 2000-06-13 |
Family
ID=26719672
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9804822-8A BR9804822A (pt) | 1997-04-09 | 1998-04-07 | Método e aparelho correlacionador |
Country Status (7)
Country | Link |
---|---|
US (2) | US6148313A (pt) |
EP (1) | EP0917680A1 (pt) |
JP (1) | JP2002516007A (pt) |
CN (1) | CN1226980A (pt) |
BR (1) | BR9804822A (pt) |
IL (1) | IL127338A (pt) |
WO (1) | WO1998045954A2 (pt) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19832850A1 (de) * | 1998-07-21 | 2000-02-10 | Siemens Ag | Akquisitionsverfahren und Vorrichtung zur Durchführung des Verfahrens |
US6823000B1 (en) * | 1999-02-26 | 2004-11-23 | Texas Instruments Incorporated | Method and apparatus for optimal dot product calculation |
DE19918317B4 (de) * | 1999-04-22 | 2004-02-12 | Siemens Ag | Verfahren und Vorrichtung zum Vergleichen von Datenfolgen |
US7010067B2 (en) | 2001-01-12 | 2006-03-07 | Renesas Technology America, Inc. | Methods and apparatus for feature recognition time shift correlation |
US6934732B2 (en) * | 2001-02-06 | 2005-08-23 | 3G. Com, Inc. | Simplified circuit for correlating binary and non-binary sequences |
US6928105B2 (en) * | 2001-05-03 | 2005-08-09 | Agere Systems Inc. | Vector tree correlator for variable spreading rates |
JP2002359786A (ja) * | 2001-05-31 | 2002-12-13 | Canon Inc | 撮像装置および撮像制御方法 |
US20030043938A1 (en) * | 2001-08-28 | 2003-03-06 | Optix Networks Inc. | Apparatus and method for periodic pattern detection |
JP3678685B2 (ja) * | 2001-09-04 | 2005-08-03 | Necインフロンティア株式会社 | Pos装置 |
US8412915B2 (en) * | 2001-11-30 | 2013-04-02 | Altera Corporation | Apparatus, system and method for configuration of adaptive integrated circuitry having heterogeneous computational elements |
US7253929B2 (en) * | 2002-02-06 | 2007-08-07 | Quad/Tech, Inc. | Camera assembly for a printing press |
US7013803B2 (en) | 2002-02-06 | 2006-03-21 | Quad/Tech, Inc. | Color registration control system for a printing press |
GB2385417B (en) | 2002-03-14 | 2004-01-21 | Taylor Hobson Ltd | Surface profiling apparatus |
US7385707B2 (en) * | 2002-03-14 | 2008-06-10 | Taylor Hobson Limited | Surface profiling apparatus |
ATE358279T1 (de) * | 2002-06-11 | 2007-04-15 | Worcester Polytech Inst | Rekonfigurierbares geolokationssystem |
US7320014B2 (en) | 2003-12-12 | 2008-01-15 | Tektronix, Inc. | Method and apparatus for identifying similar events in long data records |
CN100405079C (zh) * | 2004-09-17 | 2008-07-23 | 中国科学院空间科学与应用研究中心 | 一种可重新配置的数字相关器 |
US8013789B2 (en) * | 2004-10-06 | 2011-09-06 | Ohio University | Systems and methods for acquisition and tracking of low CNR GPS signals |
US7483933B2 (en) | 2005-02-17 | 2009-01-27 | Samsung Electronics Co., Ltd. | Correlation architecture for use in software-defined radio systems |
US7385537B2 (en) * | 2005-02-28 | 2008-06-10 | Texas Instruments Incorporated | Linear feedback shift register first-order noise generator |
GB0610434D0 (en) * | 2006-05-26 | 2006-07-05 | Qinetiq Ltd | Pattern matching apparatus |
US8275078B2 (en) * | 2006-06-28 | 2012-09-25 | St-Ericsson Sa | Method and apparatus for signal detection |
US20080238772A1 (en) * | 2007-01-24 | 2008-10-02 | Ohio University | Method and apparatus for using multipath signal in gps architecture |
CN101447860B (zh) * | 2008-11-28 | 2010-12-22 | 清华大学 | 任意位高速滑动相关器及其应用 |
US9071342B1 (en) * | 2010-04-08 | 2015-06-30 | Marvell International Ltd. | Method and apparatus for correlating global positioning system (GPS) pseudorandom noise (PRN) codes |
CN102340324B (zh) * | 2011-09-26 | 2013-12-25 | 北京邮电大学 | 广播定位信号的码相位捕获方法和装置 |
CN103543441B (zh) * | 2013-10-21 | 2015-08-26 | 南京理工大学 | 基于fpga纳秒级可编程延时电路的数字相关器 |
CN114337934B (zh) * | 2021-12-30 | 2024-06-21 | 重庆两江卫星移动通信有限公司 | 一种csk调制信号解调系统 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4080660A (en) * | 1975-07-11 | 1978-03-21 | James Nickolas Constant | Digital signal time scale inversion |
SU1180927A1 (ru) * | 1984-03-05 | 1985-09-23 | Акустический институт им.акад.Н.Н.Андреева | Коррел тор |
JPS6149233A (ja) * | 1984-08-17 | 1986-03-11 | Nec Corp | 高速デジタル加減算回路 |
SU1352500A1 (ru) * | 1985-07-01 | 1987-11-15 | Предприятие П/Я М-5202 | Знаковый коррел тор |
US4679210A (en) * | 1985-07-18 | 1987-07-07 | Itt Gilfillan, A Division Of Itt Corporation | Soft-limited digital pulse compressor |
EP0220110A3 (en) * | 1985-10-07 | 1990-04-25 | Fairchild Semiconductor Corporation | Bit plane area correlator |
GB8605366D0 (en) * | 1986-03-05 | 1986-04-09 | Secr Defence | Digital processor |
US4937775A (en) * | 1988-11-21 | 1990-06-26 | General Electric Company | Apparatus for the cross-correlation of a pair of complex sampled signals |
US5210770A (en) * | 1991-09-27 | 1993-05-11 | Lockheed Missiles & Space Company, Inc. | Multiple-signal spread-spectrum transceiver |
US5343495A (en) * | 1992-12-31 | 1994-08-30 | Gte Government Systems Corporation | Method of multipath dsss communications |
US5574747A (en) * | 1995-01-04 | 1996-11-12 | Interdigital Technology Corporation | Spread spectrum adaptive power control system and method |
US5684727A (en) * | 1996-02-07 | 1997-11-04 | Macdonald, Dettwiler And Associates Ltd. | High-speed correlator |
JP2780697B2 (ja) * | 1996-03-22 | 1998-07-30 | 日本電気株式会社 | 相関復調における同期捕捉方法及び装置 |
EP0800284B1 (en) * | 1996-04-04 | 2006-01-04 | New Japan Radio Corp., Ltd. | Correlator for spread spectrum signals |
US5966403A (en) * | 1996-07-19 | 1999-10-12 | Trimble Navigation Limited | Code multipath error estimation using weighted correlations |
US5966411A (en) * | 1996-12-18 | 1999-10-12 | Alcatel Usa Sourcing, L.P. | Multipath equalization using taps derived from a parallel correlator |
US5931893A (en) * | 1997-11-11 | 1999-08-03 | Ericsson, Inc. | Efficient correlation over a sliding window |
-
1998
- 1998-03-30 US US09/050,114 patent/US6148313A/en not_active Expired - Lifetime
- 1998-04-07 JP JP54316598A patent/JP2002516007A/ja active Pending
- 1998-04-07 EP EP98918101A patent/EP0917680A1/en not_active Withdrawn
- 1998-04-07 WO PCT/US1998/007271 patent/WO1998045954A2/en not_active Application Discontinuation
- 1998-04-07 CN CN98800448.8A patent/CN1226980A/zh active Pending
- 1998-04-07 IL IL12733898A patent/IL127338A/xx active IP Right Grant
- 1998-04-07 BR BR9804822-8A patent/BR9804822A/pt not_active IP Right Cessation
-
2000
- 2000-04-25 US US09/557,788 patent/US6237014B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
WO1998045954A2 (en) | 1998-10-15 |
WO1998045954A8 (en) | 1999-04-08 |
IL127338A (en) | 2003-10-31 |
CN1226980A (zh) | 1999-08-25 |
US6148313A (en) | 2000-11-14 |
WO1998045954A3 (en) | 1999-06-24 |
WO1998045954A9 (en) | 1999-05-14 |
US6237014B1 (en) | 2001-05-22 |
IL127338A0 (en) | 1999-10-28 |
JP2002516007A (ja) | 2002-05-28 |
EP0917680A1 (en) | 1999-05-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B08F | Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette] |
Free format text: REFERENTE A 8A , 9A E 10A ANUIDADES. |
|
B08K | Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette] |
Free format text: REFERENTE AO DESPACHO PUBLICADO NA RPI 1946 DE 22/04/2008. |