Estimation of missing components of Fourier Telescopy based on least square fitting

	Estimation of missing components of Fourier Telescopy based on least square fitting
	Yu, S.-H.; J.-L. Wang; L. Dong; X.-Y. Liu and L. Wang
	2015
发表期刊	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
卷号	23 期号:1 页码:282-287
摘要	To reconstruct the image of a deep space target by using non-uniform sparse launch array of a Fourier Telescopy(FT), a new method based on the least square fitting was proposed to estimate the lack of Fourier component of the target. Firstly, the T-sparse emitter array of laser transmitter system was used as transmitter configuration of FT, and the returned time-domain signal was processed by a DC filter. According to the basic principle of FT, the signal was demodulated to obtain a triple product by the phase closure. The least square fitting method was used to estimate and fit the absent Fourier components and to take it for the information recovery basis. Finally, the image was reconstructed with inverse non-uniform Fourier transform. Four targets were simulated with different SNRs. As compared with the original method, the new method resolutes the details of targets and the Strehl Ratios are improved by a maximum value of 0.074 2 and the minimum value of 0.009 8 at a SNR of 200 db and seven rank fitting. Obtain data in a field experiment show that the new method overcomes the distortion of reconstructed image come from frequency spectral deviation and provides a reference for practical engineering. , 2015, Chinese Academy of Sciences. All right reserved.
文章类型	期刊论文
收录类别	EI
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/56129
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Yu, S.-H.,J.-L. Wang,L. Dong,et al. Estimation of missing components of Fourier Telescopy based on least square fitting[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2015,23(1):282-287.
APA	Yu, S.-H.,J.-L. Wang,L. Dong,&X.-Y. Liu and L. Wang.(2015).Estimation of missing components of Fourier Telescopy based on least square fitting.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,23(1),282-287.
MLA	Yu, S.-H.,et al."Estimation of missing components of Fourier Telescopy based on least square fitting".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 23.1(2015):282-287.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
基于最小二乘法拟合估计傅里叶望远镜的缺失（415KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	浏览下载