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

页码：516 / 522

页数：7

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