Theoretical analysis about 2π ambiguity of the piston error in sparse optical synthetic aperture imaging system

摘要: In recent years, sparse-optical-synthetic-aperture telescope has emerged as an important developing trend for large-scale telescope, where the correction of piston error among different Sub-apertures plays role achieving high resolution. The 2 pi ambiguity effect is most aspect error's influences upon system's far-field intensity, which was theoretically analyzed at first. Then bi-sub-aperture system taken example to test correctness theoretical model through distributions intensity. addition, a proof made get some properties errors within such kind system. From results, it shown that comes along with any in system, and this stands independent between pair sub-apertures. derivation also provides effective related concerns (C) 2013 Elsevier GmbH. All rights reserved.