| 基于分数阶Fourier变换的水声通信多普勒系数估计技术研究 |
| |
| 引用本文： | 霍雁明,刘媛,张晓.基于分数阶Fourier变换的水声通信多普勒系数估计技术研究[J].适用技术之窗,2012(1):25-28. |
| |
| 作者姓名： | 霍雁明 刘媛 张晓 |
| |
| 作者单位： | [1]云南昆船电子设备有限公司,云南昆明650236 [2]哈尔滨工程大学水声工程学院,黑龙江哈尔滨150001 |
| |
| 基金项目： | 国家自然科学基金项目（51179034 60802060）; 黑龙江省自然科学基金项目（F201109）; 上海交通大学海洋工程国家重点实验室开放课题（批准号：1007） |
| |
| 摘 要： | 本文基于传统多普勒系数估计方法,提出一种基于分数阶Fourier变换的多普勒系数估计方法,该方法利用分数阶Fourier变换估计得到经过信道后LFM信号调频斜率的变化量值,进而得到多普勒系数的估计。通过计算机仿真研究验证了该方法的有效性与稳健性。
|
| 关 键 词： | 分数阶Fourier变换 多普勒系数 水声通信 |
Study on Doppler Effects Estimate in Underwater Acoustic Communication Based on Fractional Fourier Transform |
| |
| Huo Yanming Liu Yuan Zhang Xiao.Study on Doppler Effects Estimate in Underwater Acoustic Communication Based on Fractional Fourier Transform[J].Science & Technology Plaza,2012(1):25-28. |
| |
| Authors: | Huo Yanming Liu Yuan Zhang Xiao |
| |
| Affiliation: | Huo Yanming Liu Yuan Zhang Xiao(1.Yunnan Kunming Shipbuilding Electronic Equipment Co.,Ltd.,Yunnan Kunming 650236;2.College of Underwater Acoustic Engineering,Harbin Engineering University,Heilongjiang Harbin 150001) |
| |
| Abstract: | An estimate method of the Doppler effects in mobile underwater acoustic communication based on fractional Fourier transform has been proposed.The Doppler coefficients are obtained by estimating chirp rate change of LFM signal with fractional Fourier transform（FRFT） in this paper.And the performance of the Doppler effects estimation method based on FRFT is verified by the computer simulation. |
| |
| Keywords: | Fractional Fourier Transform Doppler Coefficient Underwater Acoustic Communication |
| 本文献已被 维普 等数据库收录！ |
