| 非高斯背景噪声下的微弱磁异常信号检测算法 |
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| 引用本文： | 张坚,林春生,邓鹏,龚沈光.非高斯背景噪声下的微弱磁异常信号检测算法[J].海军工程大学学报,2011(4):22-26. |
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| 作者姓名： | 张坚 林春生 邓鹏 龚沈光 |
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| 作者单位： | 海军工程大学兵器工程系;海军潜艇学院导弹兵器系; |
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| 基金项目： | 国家部委基金资助项目(9140A01010109) |
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| 摘 要： | 针对传统的OBF分解算法在非高斯噪声下检测性能较差的问题,提出了一种带通滤波结合OBF分解的磁异常信号检测算法.首先,根据磁异常信号的频域特征,设计了Parks-McClellan最优FIR滤波器.通过对舍噪信号的带通滤波,实现对非高斯噪声的近似高斯化,同时最大程度地保留磁异常信号的信息.然后,对滤波后的信号进行OBF...
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| 关 键 词： | 信号检测 磁异常探测 OBF分解 非高斯噪声 带通滤波 |
Detection of weak magnetic anomaly signal in non-Gaussian noise background |
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| ZHANG Jian,LIN Chun-sheng,DENG Peng,GONG Shen-guang.Detection of weak magnetic anomaly signal in non-Gaussian noise background[J].Journal of Naval University of Engineering,2011(4):22-26. |
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| Authors: | ZHANG Jian LIN Chun-sheng DENG Peng GONG Shen-guang |
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| Institution: | ZHANG Jian1,LIN Chun-sheng1,DENG Peng2,GONG Shen-guang1(1.Dept.of Weaponry Engineering,Naval Univ.of Engineering,Wuhan 430033,China,2.Dept.of Missile and Weaponry Engineering,Naval Submarine Academy,Qingdao 266000,China) |
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| Abstract: | As for the poorer effect of traditional OBF decomposition algorithm in non-Gaussian noise,a new detection algorithm was proposed using a band-pass filter combined with OBF decomposition.Firstly the Parks-McClellan optimal FIR filter was designed based on the frequency characteristic of magnetic anomaly signal.The raw signal was filtered by the band-pass filter so that non-Gaussian noise could fall into Gaussian distribution approximately and the information of magnetic anomaly signal was retained to the lar... |
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| Keywords: | detection of signal magnetic anomaly detection OBF decomposition non-Gaussian noise band-pass filter |
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