The server is under maintenance between 08:00 to 12:00 (GMT+08:00), and please visit later.
We apologize for any inconvenience caused
Login
|
Sign Up
|
Oriprobe Inc.
|
Feed
Home
Journals
Order
TOC Alerts
Subscription
Products & Services
Pricing
FAQ
About
Journal Articles
Laws/Policies/Regulations
Companies/Products
Title, abstract, keywords:
Combined Search
Advanced Search
Pay per View through On Demand Search
Package:
ALL
Astro-Earth Science
Agriculture
Physics
Mathematics
Arts & Humanities
Medline Collection
Health/Medicine/Biology
Chemistry/Chemical Engineering
CAOD
English Journals
Traditional Chinese Medicine
NPC CPPCC Journals
China Defense and Military Sciences
Author:
Journal / Book Title:
Year:
Volume:
Issue:
Research of Fourier Phase in Optical Synthetic-Aperture Imaging Technique
Author(s):
FAN Weijun
,
ZHOU Bifang
,
WANG Haitao
,
XIA Liangzheng
Pages:
408
-
412
Year:
2004
Issue:
3
Journal:
ACTA OPTICA SINICA
Keyword:
天文光学仪器
;
光学综合孔径
;
傅里叶相位
;
峰值位移
;
闭合相位
;
Abstract:
傅里叶相位是光学综合孔径成像的重要信息,观测目标的傅里叶相位包含于干涉条纹中.从像平面干涉条纹形成原理出发,推导出大气扰动、星光方向与基线方向不垂直和望远镜系统机械误差等因素是影响干涉条纹初始相位的主要因素.利用条纹原点值和峰值位移从条纹中提取初始相位,采用闭合相位法从条纹初始相位中去除其它因素的影响,从而最终获取目标傅里叶相位;结合计算机模拟对噪声给条纹峰值位置的影响进行分析,模拟结果表明在频域中对条纹能量谱进行阈值处理有较好的去噪效果.最后结合目标重构迭代法阐述了闭合相位在像重构中的作用.
Citations
System Exception
Related Articles
loading...