An Enhanced Weak Signal Acquisition Algorithm for Indoor Positioning Receiver

被引：0
|
作者：
Deng, Zhongliang [1 ]
Zhang, Yu [1 ]
Yuan, Xie [1 ]
机构：
[1] Beijing Univ Posts & Telecommun, Beijing 100088, Peoples R China
来源：
INFORMATION TECHNOLOGY APPLICATIONS IN INDUSTRY II, PTS 1-4 | 2013年 / 411-414卷
关键词：
weak signal acquisition; PN sequence; TC-OFDM; TRACKING;
D O I：
10.4028/www.scientific.net/AMM.411-414.1510
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
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.
引用
收藏
页码：1510 / 1516
页数：7
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