ATE545250T1 - Verfahren zur unterscheidung einer echten echospitze von einer alias-echospitze - Google Patents
Verfahren zur unterscheidung einer echten echospitze von einer alias-echospitzeInfo
- Publication number
- ATE545250T1 ATE545250T1 AT08845511T AT08845511T ATE545250T1 AT E545250 T1 ATE545250 T1 AT E545250T1 AT 08845511 T AT08845511 T AT 08845511T AT 08845511 T AT08845511 T AT 08845511T AT E545250 T1 ATE545250 T1 AT E545250T1
- Authority
- AT
- Austria
- Prior art keywords
- peak
- correlation
- samples
- time delay
- echos
- Prior art date
Links
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
- H04L25/0202—Channel estimation
- H04L25/0212—Channel estimation of impulse response
-
- 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
- H04L25/0202—Channel estimation
- H04L25/0224—Channel estimation using sounding signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07291314 | 2007-11-01 | ||
PCT/IB2008/054441 WO2009057040A1 (en) | 2007-11-01 | 2008-10-28 | A method to discriminate a real echo peak from an aliased echo peak |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE545250T1 true ATE545250T1 (de) | 2012-02-15 |
Family
ID=40427528
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT08845511T ATE545250T1 (de) | 2007-11-01 | 2008-10-28 | Verfahren zur unterscheidung einer echten echospitze von einer alias-echospitze |
Country Status (5)
Country | Link |
---|---|
US (1) | US8194807B2 (de) |
EP (1) | EP2215790B1 (de) |
CN (1) | CN101843061B (de) |
AT (1) | ATE545250T1 (de) |
WO (1) | WO2009057040A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI623210B (zh) * | 2016-11-15 | 2018-05-01 | 晨星半導體股份有限公司 | 用來估計一影音訊號之通道狀態的估計方法及相關的估計電路與接收器 |
GB2560041B (en) * | 2017-02-28 | 2020-03-18 | Imagination Tech Ltd | OFDM signal parameter estimation |
CN113376645B (zh) * | 2021-08-16 | 2021-11-30 | 深圳煜炜光学科技有限公司 | 一种提高激光测距精度的方法与装置 |
US11558232B1 (en) * | 2021-09-30 | 2023-01-17 | Silicon Laboratories Inc. | Generating a preamble portion of an orthogonal frequency division multiplexing transmission using complex sequence values optimized for minimum Peak-to-Average Power Ratio |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6335954B1 (en) * | 1996-12-27 | 2002-01-01 | Ericsson Inc. | Method and apparatus for joint synchronization of multiple receive channels |
US6654429B1 (en) | 1998-12-31 | 2003-11-25 | At&T Corp. | Pilot-aided channel estimation for OFDM in wireless systems |
US7151797B2 (en) * | 2002-05-14 | 2006-12-19 | Limberg Allen Leroy | Adaptive K-factor-improvement filter for receiver of radio signals subject to multipath distortion |
JP4242606B2 (ja) * | 2002-06-20 | 2009-03-25 | 株式会社エヌ・ティ・ティ・ドコモ | 通信制御システム、通信制御方法、移動局及び基地局 |
US7421029B2 (en) | 2002-12-20 | 2008-09-02 | Unique Broadband Systems, Inc. | Impulse response shortening and symbol synchronization in OFDM communication systems |
WO2004105335A1 (en) | 2003-05-22 | 2004-12-02 | Ntt Docomo, Inc. | Apparatus and method for processing an impulse response of a channel |
CN1802832B (zh) | 2003-06-30 | 2010-12-01 | 诺基亚公司 | 多载波系统中的更快速的精确定时操作 |
US8553822B2 (en) | 2004-01-28 | 2013-10-08 | Qualcomm Incorporated | Time filtering for excess delay mitigation in OFDM systems |
GB2412551A (en) * | 2004-03-26 | 2005-09-28 | Sony Uk Ltd | Receiver |
US7457231B2 (en) | 2004-05-04 | 2008-11-25 | Qualcomm Incorporated | Staggered pilot transmission for channel estimation and time tracking |
US7324591B2 (en) * | 2004-08-17 | 2008-01-29 | Zenith Electronics Corporation | Adaptive equalizer |
US7609773B2 (en) * | 2005-04-18 | 2009-10-27 | Qualcomm Incorporated | Method of determining the location of the FFT window and the delay spread for the platinum broadcast channel estimator |
JP2009502078A (ja) * | 2005-07-20 | 2009-01-22 | エヌエックスピー ビー ヴィ | 精密ofdmシンボル同期化のための方法及び同期装置並びにofdmシンボルの受信のための方法/受信器 |
WO2008101252A1 (en) * | 2007-02-16 | 2008-08-21 | Maxlinear, Inc. | Long echo detection and channel estimation for ofdm systems |
US7684313B2 (en) * | 2007-03-30 | 2010-03-23 | Zoran Corporation | System and method for FFT window timing synchronization for an orthogonal frequency-division multiplexed data stream |
-
2008
- 2008-10-28 CN CN200880113795XA patent/CN101843061B/zh not_active Expired - Fee Related
- 2008-10-28 AT AT08845511T patent/ATE545250T1/de active
- 2008-10-28 US US12/738,986 patent/US8194807B2/en not_active Expired - Fee Related
- 2008-10-28 WO PCT/IB2008/054441 patent/WO2009057040A1/en active Application Filing
- 2008-10-28 EP EP08845511A patent/EP2215790B1/de not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
EP2215790B1 (de) | 2012-02-08 |
EP2215790A1 (de) | 2010-08-11 |
CN101843061A (zh) | 2010-09-22 |
US20100303175A1 (en) | 2010-12-02 |
WO2009057040A1 (en) | 2009-05-07 |
CN101843061B (zh) | 2012-12-19 |
US8194807B2 (en) | 2012-06-05 |
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