| TH-PPM UWB信噪比的估计方法 |
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| 引用本文： | 夏斌,谢楠.TH-PPM UWB信噪比的估计方法[J].长春邮电学院学报,2008(1):44-47. |
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| 作者姓名： | 夏斌 谢楠 |
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| 作者单位： | 山东理工大学计算机科学与技术学院,山东淄博255049 |
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| 基金项目： | 山东理工大学科研基金资助项目（4041-406034） |
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| 摘 要： | TH-PPM UWB（Time Hopping-Pulse Position Modulation Ultra Wide Band）系统利用基于能量比较的TOA（Time of Arrival）估计算法可以提供很高的定位精度，但该算法需要知道准确的信噪比。针对此问题，提出了一种在多径条件下利用相关器的输出信号进行信噪比估计的方法。仿真结果表明，该方法具有很高的估计性能，并且数据量越大，估计的性能越好。
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| 关 键 词： | 跳时脉冲位置调制 信噪比 相关器 |
Estimation Method for Estimating Signal to Noise of TH-PPM UWB Signal |
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| XIA Bin,XIE Nan.Estimation Method for Estimating Signal to Noise of TH-PPM UWB Signal[J].Journal of Changchun Post and Telecommunication Institute,2008(1):44-47. |
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| Authors: | XIA Bin XIE Nan |
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| Affiliation: | ( School of Computer Science and Technology, Shandong University of Technology, Zibo 255049, China) |
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| Abstract: | TH-PPM UWB （Time Hopping-Pulse Position Modulation Ultra Wide Band） system can provide high location accuracy by using TOA （ Time of Arrival） estimation method based on energy comparison. However the method requires accurate SNR （Signal Noise Ratio）. Thus an algorithm is proposed to estimate the SNR, which make use of output signal from a correlator under multipath channel environments. Simulation results show that the algorithm has a high estimation performance which is improved as the number of data increase. |
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| Keywords: | time hopping pulse position modulation signal to noise correlator |
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