收稿日期: 2004-05-24
修回日期: 2004-09-27
网络出版日期: 2005-07-15
基金资助
中国科学院、科学技术部 973项目 (G2000078403);国家自然科学基金项目 (10225313)资助
Accelerated Pressure Algorithm for Interferometric Array Configuration
Received date: 2004-05-24
Revised date: 2004-09-27
Online published: 2005-07-15
王书振 , 颜毅华 , 寿建军 , 徐国华 . 日像仪干涉阵结构优化的加速压力算法[J]. 中国科学院大学学报, 2005 , 22(4) : 416 -421 . DOI: 10.7523/j.issn.2095-6134.2005.4.004
The accelerated pressure algorithm, which would improve the Boone pressure algorithm in solution and convergence, can eliminate the top Na uv distribution dispersions of sampling points by moving the array; where Na is the number of antenna in array, namely it can amend the uv distribution maximally in an iterat ive evolut ion, hence the result is as close as possible. The comparison between APA and pressure algorithm showed its validity and high efficiency by the ALMA array configuration. Finally, the simulation-based model of Gaussian distribution is conducted on interferometric array configuration constructing by the national astronomical observatory.
[1] Keto E. The shapes of cross-correlat ion interf erometers. TheAstrophysi cal Journal, 1997, 475: 843～852
[2] Kogan L. Optimization of an array configuration minimizing side lobes. In: MMA Memo No. 171. 1997
[3] Boone F. Interferometric array design: optimizing the locat ions of the ant enna pads. Astronomy & Astrophysics, 2001, 377: 368～376
[4] Boone F. Interferometric array design: distributions of fourier samples for imaging. Astronomy & Astrophysics, 2002, 386: 1160～1171
[5] Conway J. Sel-f similar spiral geometries for the LSAPMMA. In: ALMA Memo No. 216. 1998
[6] Conway J. A comparison of zoom arrays with circular and spiral symmet ry. In: ALMA Memo No. 260. 1999
/
| 〈 |
|
〉 |
