Blind Channel Estimation for UWB Systems Based on the Cyclic Convolution Property of the Receive Signals Expectation

Zhu Xing-Tao; Liu Yu-Lin; Zhao  Xiang

doi:10.3724/SP.J.1146.2007.00749

Volume 30 Issue 10

Jan. 2011

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Zhu Xing-Tao, Liu Yu-Lin, Zhao Xiang. Blind Channel Estimation for UWB Systems Based on the Cyclic Convolution Property of the Receive Signals Expectation[J]. Journal of Electronics & Information Technology, 2008, 30(10): 2381-2383. doi: 10.3724/SP.J.1146.2007.00749

Citation:

Zhu Xing-Tao, Liu Yu-Lin, Zhao Xiang. Blind Channel Estimation for UWB Systems Based on the Cyclic Convolution Property of the Receive Signals Expectation[J]. Journal of Electronics & Information Technology, 2008, 30(10): 2381-2383. doi: 10.3724/SP.J.1146.2007.00749

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Blind Channel Estimation for UWB Systems Based on the Cyclic Convolution Property of the Receive Signals Expectation

doi: 10.3724/SP.J.1146.2007.00749 cstr: 32379.14.SP.J.1146.2007.00749

Received Date: 2007-05-17
Rev Recd Date: 2008-04-21
Publish Date: 2008-10-19

Abstract

Abstract

In this paper, a novel blind channel estimation algorithm based on tap detecting is proposed for the chip-rate discrete channel of the TH-PPM Ultra Wide-Band(UWB) communications. In this algorithm, the cyclic convolution property of the receive signals expectation is used to model the question of channel estimation, and the sparse and cluster structure of UWB channel is used to avoid non-important zero taps estimation which promoted the performance of the algorithm. Simulation results demonstrated that the mean square error of the UWB-TDLS is 5.5dBs lower than UWB-LS in the situation of low signal to noise ratio(0-15dB), while it is 3.5dB lower in the situation of high signal to noise ratio(15dB), moreover the UWB-TDLS also has better signal-error-ratio performance than UWB-LS.
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References(1)

References

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