| 基于双曲调频小波变换的水下运动目标参数估计 |
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| 引用本文： | 杨长生,杨小丰,李志舜. 基于双曲调频小波变换的水下运动目标参数估计[J]. 鱼雷技术, 2005, 13(3): 15-17 |
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| 作者姓名： | 杨长生 杨小丰 李志舜 |
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| 作者单位： | 西北工业大学航海学院,陕西,西安,710072 |
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| 摘 要： | 为了精确估计水下运动目标的运动参数，选择双曲调频小波作为发射信号，对其自小波变换进行了分析。对于参数未知的运动目标，给出了利用该小波变换消除尺度和时延耦合的方法。仿真结果表明，该方法能在低信噪比下估计运动目标的参数，验证了方法的有效性。
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| 关 键 词： | 双曲调频小波 小波变换 参数估计 |
| 文章编号： | 1673-1948（2005）03-0015-03 |
| 收稿时间： | 2005-05-08 |
| 修稿时间： | 2005-05-082005-07-26 |
Parameter Estimation of Underwater Moving Target Based on Hyperbolic Frequency Modulation Wavelet Transform |
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| YANG Chang-sheng,YANG Xiao-feng,LI Zhi-shun. Parameter Estimation of Underwater Moving Target Based on Hyperbolic Frequency Modulation Wavelet Transform[J]. Torpedo Technology, 2005, 13(3): 15-17 |
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| Authors: | YANG Chang-sheng YANG Xiao-feng LI Zhi-shun |
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| Abstract: | Hyperbolic frequency modulation wavelet was chosen as transmitting signal,and its self-wavelet transform was analyzed for accurately estimating the parameter of underwater moving target. A method using the wavelet transform to eliminate the coupling of scale and time delay was presented for the object with unknown parameter. Simulation results prove that estimation of parameters is well done under low signal to noise ratio (SNR), and the presented method was efficient. |
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| Keywords: | hyperbolic frequency modulation wavelet wavelet transform parameter estimation |
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