TW200731700A - Adaptive two-dimensional channel estimating method and the device for orthogonal frequency division multiplexing - Google Patents
Adaptive two-dimensional channel estimating method and the device for orthogonal frequency division multiplexingInfo
- Publication number
- TW200731700A TW200731700A TW095103979A TW95103979A TW200731700A TW 200731700 A TW200731700 A TW 200731700A TW 095103979 A TW095103979 A TW 095103979A TW 95103979 A TW95103979 A TW 95103979A TW 200731700 A TW200731700 A TW 200731700A
- Authority
- TW
- Taiwan
- Prior art keywords
- signal
- adaptive
- division multiplexing
- estimator
- frequency division
- Prior art date
Links
Landscapes
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Noise Elimination (AREA)
Abstract
This invention discloses an adaptive two-dimensional channel estimating method and the device comprising a signal noise ratio estimator, a Doppler frequency estimator, an adaptive channel estimating controller, an adaptive channel estimator, and a two-dimensional guiding signal register. After a receiver terminal receives a signal and the signal is preprocessed and processed by Fourier transform, the guiding signal, Rp(n,k) arranged in the orthogonal frequency division multiplexing symbols can be retrieved, and at the same time the guiding signal will be inputted into the two-dimensional guiding signal register, the Doppler frequency estimator, and the signal noise ratio estimator. The two-dimensional guiding signal register can save several leading- and lagging- guide signals in the orthogonal frequency division multiplexing symbols according to the specifications of different system.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW095103979A TW200731700A (en) | 2006-02-07 | 2006-02-07 | Adaptive two-dimensional channel estimating method and the device for orthogonal frequency division multiplexing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW095103979A TW200731700A (en) | 2006-02-07 | 2006-02-07 | Adaptive two-dimensional channel estimating method and the device for orthogonal frequency division multiplexing |
Publications (2)
Publication Number | Publication Date |
---|---|
TW200731700A true TW200731700A (en) | 2007-08-16 |
TWI300657B TWI300657B (en) | 2008-09-01 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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TW095103979A TW200731700A (en) | 2006-02-07 | 2006-02-07 | Adaptive two-dimensional channel estimating method and the device for orthogonal frequency division multiplexing |
Country Status (1)
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TW (1) | TW200731700A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109936738A (en) * | 2017-12-15 | 2019-06-25 | 晨星半导体股份有限公司 | Channel estimation circuit and relevant channel estimation method |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8644260B2 (en) | 2009-05-01 | 2014-02-04 | Qualcomm Incorporated | Apparatus and method for increasing reliability of serving cell change |
TWI406539B (en) * | 2009-05-26 | 2013-08-21 | Sunplus Mmobile Inc | Apparatus and method for estimating a doppler frequency of a moving object |
US8488539B2 (en) | 2009-07-16 | 2013-07-16 | Ralink Technology Corp. | Method of generating preamble sequence |
US8693356B2 (en) | 2009-07-16 | 2014-04-08 | Ralink Technology Corp. | Method for wireless communication system and device using the same |
-
2006
- 2006-02-07 TW TW095103979A patent/TW200731700A/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109936738A (en) * | 2017-12-15 | 2019-06-25 | 晨星半导体股份有限公司 | Channel estimation circuit and relevant channel estimation method |
Also Published As
Publication number | Publication date |
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TWI300657B (en) | 2008-09-01 |
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