| 推扫成像中积分时间对孔径函数的影响分析 |
| |
| 引用本文： | 张滢清, 傅雨田. 推扫成像中积分时间对孔径函数的影响分析[J]. 红外技术, 2007, 29(3): 147-150. DOI: 10.3969/j.issn.1001-8891.2007.03.007 |
| |
| 作者姓名： | 张滢清 傅雨田 |
| |
| 作者单位： | 华侨大学信息科学与工程学院,福建,泉州,362021;中科院上海技术物理研究所,上海,200083 |
| |
| 基金项目： | 华侨大学高层次人才科研启动金资助项目 |
| |
| 摘 要： | 分析了线列推扫成像中,积分时间对采样孔径函数的影响.给出了在推扫方向上随着积分时间变化的梯形采样孔径函数,并根据该孔径函数,分析了积分时间和输入频率对截取过程中的调制传递函数值下降速度的影响,同时对细分采样叠加成像方式与积分延迟效应的类似性作了简要对比.这些分析有助于更清晰地了解推扫成像方式中积分时间对系统成像质量的影响.
|
| 关 键 词： | 孔径函数 截取 推扫 积分时间 调制传递函数 |
| 文章编号： | 1001-8891（2007）03-0147-04 |
| 修稿时间： | 2007-01-04 |
Effect Analysis of Integral Time on Aperture Function of Push-broom Imaging System |
| |
| ZHANG Ying-qing, FU Yu-tian. Effect Analysis of Integral Time on Aperture Function of Push-broom Imaging System[J]. Infrared Technology , 2007, 29(3): 147-150. DOI: 10.3969/j.issn.1001-8891.2007.03.007 |
| |
| Authors: | ZHANG Ying-qing FU Yu-tian |
| |
| Affiliation: | 1 .School of Information Science and Technology, HuaQiao University, Quanzhou Fuzhou 362021, China; 2.Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China |
| |
| Abstract: | The effect of integral time on aperture function in linear detector push-broom imaging system is analyzed.A trapezia sampling aperture function which the shapes change with the length of integral time in direct of push-broom is presented.Based on the trapezia function,the effect of integral time and input frequency on the dropping of modulation transfer function value in truncation is analyzed,the result is similar to one of oversampling-superposition.The analysis way is help to understand the effect of integral time on the output quality in push-broom imaging system. |
| |
| Keywords: | Aperture function Truncation Push-broom Integration Time Modulation Transfer Function |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《红外技术》浏览原始摘要信息 |
|
点击此处可从《红外技术》下载全文 |
