| 宽带宽波束SAS成像研究 |
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| 引用本文： | 袁鹏,陶杰武,汪海涛.宽带宽波束SAS成像研究[J].舰船科学技术,2009,31(5). |
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| 作者姓名： | 袁鹏 陶杰武 汪海涛 |
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| 作者单位： | 1. 海军驻晋东南地区军事代表室,山西,太原,030027
2. 海军工程大学,兵器工程系,湖北,武汉,430033 |
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| 摘 要： | 合成孔径声呐在海底成像和扫雷方面有广泛的应用前途.现有的合成孔径声呐技术多是由合成孔径雷达技术直接借用来的,使用窄带系统.宽带宽波束合成孔径声呐(WBSAS)成像不同于传统的窄带合成孔径声呐成像存在自身特有的问题.适用于传统窄带合成孔径成像声呐成像的菲涅耳近似和其他一些简化不再适用于WBSAS成像处理.大距离徙动给成像、运动补偿和自聚焦提出了严峻的挑战.本文着重探讨WBSAS与传统的窄带合成孔径声呐成像的区别.
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| 关 键 词： | 合成孔径声呐 宽带 宽波束 |
Issues in wide-band,wide-beam SAS image formation |
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| YUAN Peng,TAO Jie-wu,WANG Hai-tao.Issues in wide-band,wide-beam SAS image formation[J].Ship Science and Technology,2009,31(5). |
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| Authors: | YUAN Peng TAO Jie-wu WANG Hai-tao |
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| Institution: | 1.Navy Representative Office Stationed in the Southeast of Shanxi Province;Taiyuan030027;China;2.Department of Weapon Engineering;Naval University of Engineering;Wuhan430033;China |
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| Abstract: | Synthetic aperture sonar could be applied to sea-bottom imaging and anti-mine. Existing synthetic aperture technique from radar is supposed to be narrowband. Formation of wide-band,wide-beam SAS Imagery faces inherent challenges not present in conventional narrow-band SAS systems operating at higher frequencies. Small angle approximations and other shortcuts taken in conventional SAS processors may be in appropriate for the WBSAS processor. The severe range migration associated with fine resolution WBSAS po... |
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| Keywords: | synthetic aperture sonar wide-band wide-beam |
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