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 multiplexing

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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
Application number
TW095103979A
Other languages
Chinese (zh)
Other versions
TWI300657B (en
Inventor
jia-hong Liu
Xing-Chao Wen
Original Assignee
Chunghwa Telecom Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chunghwa Telecom Co Ltd filed Critical Chunghwa Telecom Co Ltd
Priority to TW095103979A priority Critical patent/TW200731700A/en
Publication of TW200731700A publication Critical patent/TW200731700A/en
Application granted granted Critical
Publication of TWI300657B publication Critical patent/TWI300657B/zh

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  • 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.
TW095103979A 2006-02-07 2006-02-07 Adaptive two-dimensional channel estimating method and the device for orthogonal frequency division multiplexing TW200731700A (en)

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

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Family Applications (1)

Application Number Title Priority Date Filing Date
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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
TWI300657B (en) 2008-09-01

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