Roques J P
Appl Opt. 1987 Sep 15;26(18):3862-5. doi: 10.1364/AO.26.003862.
Coded mask aperture imaging techniques are now used in various fields, in particular in x-ray and gamma-ray astronomy. With such systems it is possible to construct apertures which have autocorrelation functions with perfectly flat sidelobes. For quadratic residue arrays (uniformly redundant arrays-URAs), we have developed fast deconvolution algorithms based on conventional decoding methods but taking advantage of the mathematical properties of the decoding matrices. Balanced decoding, delta decoding, and finely sampled decoding are discussed.
编码掩膜孔径成像技术目前应用于各个领域,尤其是在X射线和伽马射线天文学领域。利用这样的系统可以构建出具有完美平坦旁瓣自相关函数的孔径。对于二次剩余阵列(均匀冗余阵列-URAs),我们基于传统解码方法并利用解码矩阵的数学特性开发了快速去卷积算法。文中讨论了平衡解码、增量解码和精细采样解码。