| 希尔伯特-黄变换应用于宽带信号参数估计 |
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| 引用本文： | 陈宝柱,孟华,张洪华,万程亮. 希尔伯特-黄变换应用于宽带信号参数估计[J]. 船电技术, 2011, 31(1): 51-55 |
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| 作者姓名： | 陈宝柱 孟华 张洪华 万程亮 |
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| 作者单位： | 91388部队,湛江,524022 |
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| 摘 要： | 多普勒效应对主动声纳接收信号的根本影响是接收信号相对发射信号的时间延迟和尺度伸缩。在宽带信号体制下对高速运动目标进行参数估计时,利用传统的窄带信号模型会产生模糊,必须采用时间尺度域模型,即利用接收信号和发射信号的相关性实现运动目标距离和速度的估计。宽带信号模型计算量大,计算时间长。希尔伯特-黄变换具有较高的频率分辨率,利用希尔伯特-黄变换对信号进行频率预估计,减小时间尺度域二维扫描的区域和运算量。在DSP硬件平台上实现希尔伯特-黄变换有关算法。
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| 关 键 词： | 宽带信号 希尔伯特-黄变换 频率估计 |
Application of Hilbert-Huang Transform on the Parameter Estimation in Wide-band Signal |
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| Chen Baozhu,Meng Hua,Zhang Honghua,Wan Chengliang. Application of Hilbert-Huang Transform on the Parameter Estimation in Wide-band Signal[J]. Marine Electric & Electronic Technology, 2011, 31(1): 51-55 |
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| Authors: | Chen Baozhu Meng Hua Zhang Honghua Wan Chengliang |
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| Affiliation: | Chen Baozhu,Meng Hua,Zhang Honghua,Wan Chengliang(Army Unit 91388,Zhanjiang 524022,China) |
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| Abstract: | Compared to the transmit signal,the ultimate effect of Doppler domino effect to the receive signal of active sonar is time delay and scale flex.The traditional method based on narrow-band signal model is disabled on the distance and speed estimation of the under-water high speed target,and the method based on time and scale must be used.The correlation of the receive signal and the transmit signal is used to estimate the distance and speed of the motional target.However,the count amount of the method based ... |
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| Keywords: | wide-band signal Hilbert-Huang transform frequency estimation |
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