强激光与粒子束2011，Vol.23Issue(3)：571-576,6.DOI:10.3788/HPLPB20112303.0571
实验室中傅里叶望远术频谱抽取方式
Spectrum extraction mode for Fourier telescopy in laboratory
张炎 1杨春平 1郭晶 1康美苓 1吴健1
作者信息
- 1. 电子科技大学,光电信息学院,成都,610054
- 折叠
摘要
Abstract
Fourier telescopy (FT), an active high-resolution imaging technique, uses linear interference fringes with different spatial frequencies sweeping across a target. The resulting reflected temporal signal is collected by a large receiver of lower optical quality. Different spatial frequencies of interference fringes, which are essential to extract the target spectrum, are produced by changing position of beams many times in the laboratory. The theory about spectrum extraction is discussed, and a novel beam moving mode is proposed and compared with other two modes respectively used by Trex Enterprises Inc and by Changchun Institute of Optics, Fine Mechanics and Physics from three aspects: the extracted matrix of the target spectrum, the requirements for laboratory instruments and the form of iteration algorithm. The proposed mode has been proved to be capable of reducing the requirements for laboratory instruments, while simplifying iteration algorithm, which offers guidance for data acquisition and the following signal processing.关键词
傅里叶望远术/频谱抽取/相位闭合/迭代算法Key words
Fourier telescopy/ spectrum extraction/ phase closure/ iteration algorithm分类
信息技术与安全科学引用本文复制引用
张炎,杨春平,郭晶,康美苓,吴健..实验室中傅里叶望远术频谱抽取方式[J].强激光与粒子束,2011,23(3):571-576,6.
