信道多径检测在COFDM系统信道估计中的应用

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The scheme for the identification of the channel impulse response in channel estimation of OFDM systems

XIAO Ye-ping;GE Jian-hua;WANG Yong

(State Key Lab. of Integrated Service Networks, Xidian Univ., Xi′an 710071， China)

Received:1900-01-01 Revised:1900-01-01 Online:2005-10-20 Published:2005-10-20

Abstract

Abstract: This paper investigates the channel estimation and interpolation technique in the COFDM demodulation scheme. To combat the OFDM symbol timing synchronization offset error and the delay spread of the channel impulse response, it presents a new channel estimation technique suitable for the comb-type pilot scheme. The identification of the channel impulse response is applied in this scheme and a low complexity identification is presented.

Key words: COFDM, comb-type pilot, channel estimation, channel impulse response

CLC Number:

TN913

XIAO Ye-ping;GE Jian-hua;WANG Yong.

The scheme for the identification of the channel impulse response in channel estimation of OFDM systems

[J].J4, 2005, 32(5): 753-757.

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The scheme for the identification of the channel impulse response in channel estimation of OFDM systems

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