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| 多脉冲宽带相关成像的分辨率研究 | |
| 引用本文： | 石敏,陈倩,石晟玮,张静远.多脉冲宽带相关成像的分辨率研究[J].舰船科学技术,2009,31(8):86-89,107. |
| 作者姓名： | 石敏 陈倩 石晟玮 张静远 |
| 作者单位： | 1. 中国科学院声学所,北京,100080;海军装备研究院,北京,100161 2. 海军装备研究院,北京,100161 3. 北京跟踪与通信技术研究所,北京,100094 4. 海军工程大学,湖北,武汉,430033 |
| 基金项目： | 国家自然基金资助项目 |
| 摘 要： | 在多种成像方式的统一物理模型 - 旋转体成像模型基础上,研究了逆合成孔径声呐成像(ISAS)、宽带相关成像(WBC)的成像机理,分析了它们的距离和方位分辨率.从中引出一种多脉冲宽带相关成像研究思路,理论分析了多脉冲宽带相关成像的分辨率.分析结果表明,多脉冲宽带相关成像方法能解决逆合成孔径成像算法在水声应用中必然碰到的测距和测速之间矛盾的问题,并且方位向分辨率与宽带相关成像(WBC)方法相比大为提高.最后通过数字仿真将多脉冲宽带相关成像算法运用到对实际水下延展目标的成像中,初步验证了该方法的分辨能力. |
| 关 键 词： | 宽带 声成像 多脉冲 分辨率 |
Study on the distinguish capability of multi-pulse wide-band correlation imaging |
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| SHI Min,CHEN Qian,SHI Sheng-wei,ZHANG Jing-yuan.Study on the distinguish capability of multi-pulse wide-band correlation imaging[J].Ship Science and Technology,2009,31(8):86-89,107. | |
| Authors: | SHI Min CHEN Qian SHI Sheng-wei ZHANG Jing-yuan |
| Institution: | 1.Institute of Acoustics;the Chinese Academy of Sciences;Beijing100080;China;2.Naval Academy of Armament;Beijing100161;3.Beijing Institute of Tracking and Telecommunication Technology;Beijing100094;4.Naval University of Engineering;Wuhan430033;China |
| Abstract: | Based on the unified model of several acoustic imaging mode:revolving model,the distinguish capability of inverse synthetic aperture sonar imaging(ISAS)and wide band correlation imaging(WBC)are studied.Then,a new acoustic imaging method is proposed in this paper:multi-pulse wide-band correlation imaging(MWC),which has the merit of ISAS imaging and WBC imaging:the capability of azimuth distinguish are improved compared to the method of WBC imaging;the problems brought by the pulse repeat frequency(PRF)reques... |
| Keywords: | wide band acoustic imaging multi-pulse distinguish capability |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |