LIMITED DEGREE-OF-FREEDOM ADAPTIVE OPTICS AND IMAGE-RECONSTRUCTION

被引：56

作者：

ROGGEMANN, MC

机构：

[1] Air Force Weapons Laboratory, WL/ARCI, NM, 87117, Kirtland Air Force Base

来源：

APPLIED OPTICS | 1991年 / 30卷 / 29期

关键词：

LIMITED DEGREE-OF-FREEDOM ADAPTIVE OPTICS; IMAGE RECONSTRUCTION; INVERSE FILTERING;

D O I：

10.1364/AO.30.004227

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The use of limited degree-of-freedom adaptive optics in conjunction with statistical averaging and a linear image reconstruction algorithm is addressed. Image reconstruction is traded for full predetection compensation. It is shown through analytic calculations that the average optical transfer function (OTF) is significant for high spatial frequencies in the case of imaging through atmospheric turbulence with an adaptive optics system composed of a Hartmann-type wave-front sensor and a deformable mirror possessing far fewer actuators than one per atmospheric coherence diameter (r0). Statistical averaging is used to overcome the effects of measurement noise and randomness in individual realizations of the OTF. The imaging concept and signal-to-noise considerations are presented.

引用

页码：4227 / 4233

页数：7

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