| 偏心环状干涉条纹对成像的影响 |
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| 引用本文： | 彭仁军,吴健.偏心环状干涉条纹对成像的影响[J].强激光与粒子束,2003,15(2):117-121. |
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| 作者姓名： | 彭仁军 吴健 |
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| 作者单位： | 电子科技大学 光电信息学院， 四川 成都 610054 |
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| 基金项目： | 国防科技基础研究基金资助课题 |
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| 摘 要： | 讨论了由激光束生成的环状干涉条纹用于目标成像的原理和使用匹配滤波器的处理方法，推导得出相应的点扩展函数(PSF)。模拟计算了主旁瓣峰值比和偏心量与相位量的关系，分析了偏心量对成像质量的影响。结果表明，适当的偏心量有利于提高环状干涉条纹成像的分辨率，又不致于产生对点扩展函数有影响的旁瓣。
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| 关 键 词： | 干涉条纹 回波 成像 偏心量 点扩展函数 |
| 文章编号： | 1001-4322(2003)02-0117-05 |
| 收稿时间： | 2002/3/1 |
| 修稿时间： | 2002年3月1日 |
Investigation of the influence of departure to circular fringes imaging |
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| PENG Ren-jun,WU Jian.Investigation of the influence of departure to circular fringes imaging[J].High Power Laser and Particle Beams,2003,15(2):117-121. |
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| Authors: | PENG Ren-jun WU Jian |
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| Institution: | College of Photoelectric Information, University of Electronics Science and Technology of China, Chengdu 610054, China |
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| Abstract: | This paper discusses the principle of imaging with circular interference fringes and the processing method with matched filter, it also calculated the point spread function. It gives two digital relations by simulation: between the main-side lobe ratio and the phase, and between the departure and the phase. The conclusion is that suitable departure helps to improve the resolution of the imaging, and not to bring any unreasonable side lobe that influences the point spread function. |
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| Keywords: | Interference fringe Return signal Imaging Departure Point spread function |
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