一种基于瞬时相位方差加权的线谱检测器

郑恩明; 余华兵; 陈新华; 孙长瑜

doi:10.11999/JEIT141347

一种基于瞬时相位方差加权的线谱检测器

doi: 10.11999/JEIT141347

基金项目:

国家自然科学基金(61372180)和中国科学院声学研究所青年人才领域前沿项目

计量
- 文章访问数: 1432
- HTML全文浏览量: 131
- PDF下载量: 333
- 被引次数: 0
出版历程
- 收稿日期: 2014-10-20
- 修回日期: 2014-12-26
- 刊出日期: 2015-07-19

Weighted Line Spectrum Detector Based on Instantaneous Phase Variance

摘要

摘要: 针对水下目标未知线谱的检测问题，依据水下目标辐射噪声含有高强度稳定线谱这一特征，该文提出一种基于瞬时相位方差加权的线谱检测方法。该方法利用目标线谱频率单元对应瞬时相位比较稳定，背景噪声频率单元对应瞬时相位比较随机的特点，对各频率单元进行瞬时相位方差加权，可以进一步抑制背景噪声能量干扰，增强目标线谱检测信噪比(SNR)增益，实现对水下目标辐射噪声中未知线谱的检测。理论分析和实验结果表明：该方法可以较好地增强目标线谱能量、抑制噪声、提高信噪比，在抗复杂信道检测、识别领域具有良好的应用前景。
- 信息处理 /
- 水下目标辐射噪声 /
- 线谱检测 /
- 瞬时相位方差
Abstract: According to the feature that the underwater target radiated noise contains high intensive and stable line spectrum, a weighted line spectrum detection method based on the instantaneous phases variance is proposed with regard to the problem of unknown line spectrum detection. This method utilizes the characteristic that the instantaneous phase of target line spectral frequency unit being stable, and the instantaneous phase of noise frequency unit being random, to weight each frequency unit by the instantaneous phase variance, and can further restrain the background noise energy disturbances and enhance the Signal to Noise Ratio (SNR) gain of the target line spectrum detection, and achieves detecting unknown line spectrum of underwater target radiated noise. The theoretical analysis and experimental results both show that this method can well enhance the target line spectral energy and restrain the background noise energy, and has the capacity of improving SNR. It has better application prospects to the detection and identification areas of anti-complex channel.
- Information processing /
- Underwater target radiated noise /
- Line spectrum detection /
- Instantaneous phase variance

HTML全文

参考文献(33)

Urick R J. Principles of Underwater Sound[M]. New York: McGraw-Hill Book Company, 1983: 61-79.

Ross D. Mechanics of Underwater Noise[M]. New York: Pergmin Press, 1976: 83-89.

Crocker S E, Nielesen P L, Miller J H, et al.. Geoacoustic inversion of ship radiated noise in shallow water using data from a single hydrophone[J]. Journal of the Acoustical Society of America, 2014, 136(5): 362-368.

Megan F, Donald R, and Sean M. Underwater radiated noise from modern commercial ships[J]. Journal of the Acoustical Society of America, 2012, 131(1): 92-103.

李启虎, 李敏, 杨秀庭. 被动目标辐射噪声中单频信号分量的检测: 理论分析[J]. 声学学报, 2008, 33(3): 193-196.

Li Qi-hu, Li Min, and Yang Xiu-ting. The detection of single frequency component of underwater radiated noise of target: theoretical analysis[J]. Acta Acustica, 2008, 33(3): 193-196.

李启虎, 李敏, 杨秀庭. 被动目标辐射噪声中单频信号分量的检测: 数值仿真[J]. 声学学报, 2008, 33(4): 289-293.

Li Qi-hu, Li Min, and Yang Xiu-ting. The detection of single frequency component of underwater radiated noise of target: digital simulation[J]. Acta Acustica, 2008, 33(4): 289-293.

Tucker J D and Azimi-Sadjadi M R. Coherence-based underwater target detection from multiple disparate sonar platforms[J]. IEEE Journal of Oceanic Engineering, 2011, 36(1): 37-51.

吴国清, 王美刚, 陈耀明. 水声波导中包络线谱强度数值预报[J]. 声学学报, 2013, 37(4): 432-439.

Wu Guo-qing, Wang Mei-gang, and Chen Yao-ming. Numerical prediction of envelope line spectrum intensity in underwater acoustic waveguide[J]. Acta Acustica, 2013, 37(4): 432-439.

陈阳, 王自娟, 朱代柱, 等. 一种基于频率方差加权的线谱目标检测方法[J]. 声学学报, 2010, 35(1): 76-80.

Chen Yang, Wang Zi-juan, Zhu Dai-zhu, et al.. A detecting method for line-spectrum target based on variance of frequency weight[J]. Acta Acustica, 2010, 35(1): 76-80.

陈阳, 赵安邦, 王自娟, 等. 瞬时频率方差加权导向最小方差波束形成检测器[J]. 哈尔滨工程大学学报, 2011, 32(6): 730-735.

Chen Yang, Zhao An-bang, Wang Zi-juan, et al.. Variance of instantaneous frequency-weighted steered minimum variance beamforming detector[J]. Journal of Harbin Engineering University, 2011, 32(6): 730-735.

陈新华, 鲍习中, 李启虎, 等. 水下声信号未知频率的目标检测方法研究[J]. 兵工学报, 2012, 33(4): 471-475.

Chen Xin-hua, Bao Xi-zhong, Li Qi-hu, et al.. Research on detection of underwater acoustic signal with unknown frequency[J]. Acta Armamentarii, 2012, 33(4): 471-475.

郑恩明, 陈新华, 孙长瑜. 基于频率方差加权的时延差估计方法[J]. 系统工程与电子技术, 2014, 36(2): 224-229.

Zheng En-ming, Chen Xin-hua, and Sun Chang-yu. The time delay difference estimation weighted method based on frequency variance[J]. Systems Engineering and Electronics, 2014, 36(2): 224-229.

郑恩明, 陈新华, 孙长瑜, 等.基于时延差方差加权的时延差估计方法[J]. 电子与信息学报, 2014, 36(6): 1362-1367.

Zheng En-ming, Chen Xin-hua, Sun Chang-yu, et al.. Weighted time delay difference estimation method based on Its variance[J]. Journal of Electronics Information Technology, 2014, 36(6): 1362-1367.

郑恩明, 陈新华, 孙长瑜. 一种水下声信号未知频率的时延差估计方法[J]. 振动与冲击, 2014, 33(9): 190-194.

Zheng En-ming, Chen Xin-hua, and Sun Chang-yu. A time delay difference estimation method of underwater acoustic sgnal with unknown frequency[J]. Journal of Vibration and Shock, 2014, 33(9): 190-194.

张建, 关键, 董云龙, 等. 基于局部 Hilbert 谱平均带宽的微弱目标检测算法[J]. 电子与信息学报, 2012, 34(1): 121-127.

Zhang Jian, Guan Jian, Dong Yun-long, et al.. Weak target detection based on the average bandwidth of the partial hilbert spectrum[J]. Journal of Electronics Information Technology, 2012, 34(1): 121-127.

解恺, 丁雪洁, 孙贵青, 等. 基于目标辐射噪声的信号起伏检测算法研究[J]. 电子与信息学报, 2013, 35(4): 844-851.

Xie Kai, Ding Xue-jie, Sun Gui-qing, et al.. The signal fluctuating detection algorithm based on the target radiated noise[J]. Journal of Electronics Information Technology, 2013, 35(4): 844-851.

Venugopal S, Wagstaff R A, and Sharma J P. Exploiting phase fluctuations to improve machine performance monitoring[J]. IEEE Transactions on Automation Science and Engineering, 2007, 4(2): 153-166.

Wagstaff R A. Exploiting phase fluctuations to improve temporal coherence[J]. IEEE Journal of Oceanic Engineering, 2004, 29(2): 498-510.

戴文舒, 陈亚, 陈新华, 等. 差分二次平均修正的频域相位补偿线谱检测方法[J]. 兵工学报, 2014, 35(10): 1630-1637.

Dai Wen-shu, Chen Ya, Chen Xin-hua, et al.. An algorithm of line-spectrum detection uUsing frequency domain phase compensation with difference and TPM technique[J]. Acta Armamentarii, 2014, 35(10): 1630-1637.

李辉, 王岩飞. 正弦信号的直接 FFT 参数估计与相位差分法对比研究[J]. 电子与信息学报, 2010, 32(3): 544-547.

Li Hui and Wang Yan-fei. The contrastive study between direct FFT and phase difference in parameter estimation of sinusoidal signal[J]. Journal of Electronics Information Technology, 2010, 32(3): 544-547.

施引文献

资源附件(0)

访问统计