Continuous Antenna Calibration for the Transient Array Radio Telescope

被引：0
|
作者：
Molteno, Timothy C. A. [1 ]
Scheel, Max [1 ]
机构：
[1] Univ Otago, Dept Phys, Dunedin, New Zealand
来源：
PROCEEDINGS OF THE 2019 INTERNATIONAL CONFERENCE ON ELECTROMAGNETICS IN ADVANCED APPLICATIONS (ICEAA) | 2019年
关键词：
Antenna; Aperture Array; Radio Astronomy; Callibration; GLOBAL OPTIMIZATION;
D O I：
10.1109/iceaa.2019.8879242
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We describe the current state of antenna design for the all-sky Transient Array Radio Telescope, and describe the algorithms used to continuously calibrate the antenna array gains and phases of each array element during normal operation. We show how a basin-hopping high-dimensional minimization algorithm can calculate the antenna calibration parameters effectively from real-time visibilities, and the known position and signal-structure of the GNSS satellites. Finally we describe current attempts to integrate individual antenna models that capture direction dependent effects into the calibration procedure.
引用
收藏
页码：516 / 522
页数：7
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