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An Enhanced Weak Signal Acquisition Algorithm for Indoor Positioning Receiver

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Abstract:

This paper focuses on the research of weak signal acquisition based on time-division CDMA-OFDM (TC-OFDM) system by using long PN sequence with low power. An enhanced weak signal acquisition algorithm is proposed to improve the ability of weak signal acquisition compared with regular algorithm which uses short PN sequence with high power. Simulation shows that the ability of resistance to white noise in weak signal acquisition is enhanced by 12dB. Further, because of the good correlation of long PN sequence, the performance of resistance to strong signal interference has also improved 6dB.

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Periodical:

Applied Mechanics and Materials (Volumes 411-414)

Pages:

1510-1516

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.411-414.1510

Citation:

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Online since:

September 2013

Authors:

Zhong Liang Deng, Yu Zhang, Xie Yuan

Keywords:

PN Sequence, TC-OFDM, Weak Signal Acquisition

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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References

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