| 一种基于峰均功率比的信源个数检测新方法 |
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| 引用本文： | 焦亚萌, 黄建国, 侯云山. 一种基于峰均功率比的信源个数检测新方法[J]. 电子与信息学报, 2011, 33(7): 1589-1593. doi: 10.3724/SP.J.1146.2010.01222 |
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| 作者姓名： | 焦亚萌 黄建国 侯云山 |
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| 作者单位： | 西北工业大学航海学院 西安710072 |
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| 基金项目： | 国家自然科学基金(60972152); 国家重点实验室基金(9140C2304080607); 航空科学基金(2009ZC53031); 西北工业大学基础研究基金(NPU-FFR-W018102)资助课题 |
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| 摘 要： | 该文将特征向量信息与假设检验法相结合，提出了一种基于峰均功率比门限(Peak-to-Average Power Ratio Threshold, PAPRT)的信源个数检测新方法。该方法利用特征向量对接收数据进行加权，然后计算其峰均功率比，利用峰均功率比值与特征值在区分信号和噪声方面的一致性，通过引入一个二元假设检验过程，检测信号源个数。仿真结果表明，PAPRT方法在低信噪比下，对等强双目标的检测性能优于特征值门限(Eigen Threshold, ET)方法，且不受目标强度差的影响，对不等强多目标也具有优良的检测性能。
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| 关 键 词： | 多目标检测 特征向量 峰均功率比 不等强多目标 |
| 收稿时间： | 2010-11-08 |
| 修稿时间： | 2011-03-24 |
A New Method for Source Number Detection Based on Peak-to-average Power Ratio |
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| Jiao Ya-Meng, Huang Jian-Guo, Hou Yun-Shan. A New Method for Source Number Detection Based on Peak-to-average Power Ratio[J]. Journal of Electronics & Information Technology, 2011, 33(7): 1589-1593. doi: 10.3724/SP.J.1146.2010.01222 |
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| Authors: | Jiao Ya-meng Huang Jian-guo Hou Yun-shan |
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| Affiliation: | Jiao Ya-meng Huang Jian-guo Hou Yun-shan(College of Marine,Northwestern Polytechnical University,Xi'an 710072,China) |
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| Abstract: | In this paper,a new method based on Peak-to-Average Power Ratio Threshold(PAPRT) is proposed by combining the eigenvectors with the binary hypothesis testing.The eigenvectors are employed to weigh the received data and then the peak-to-average power ratio is calculated.According to the fact that both the eigenvalues and the peak-to-average power ratio have valuable information in distinguishing signal from noise,the source number is detected by introducing the binary hypothesis testing process.Simulation re... |
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| Keywords: | Multi-target detection Eigenvector Peak-to-average power ratio Different intensity targets |
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