电讯技术2018，Vol.58Issue(5)：519-524,6.DOI:10.3969/j.issn.1001-893x.2018.05.005
导航卫星阵列天线的快速现场系统校准算法
Fast Field Array Manifold Calibration for GNSS Antenna Arrays
摘要
Abstract
The reception of Global Navigation Satellite System(GNSS) signal is susceptible to the aniso-tropic response of the array antennas and non-ideality of radio frequency frontend. The different code or carrier phase biases of different satellites introduced by the antenna array and the frontend will break the assumption of positioning principle and prevent precise location. To solve the problem,an implementable fast field array manifold calibration algorithm is proposed for GNSS antenna arrays,including channel cali-bration and antenna calibration. In channel calibration step,the frontend channels' responses are measured when powered on or periodically measured during running. In the antenna calibration step,the compound field array manifold is measured with live satellite signals and the measurements from the digital GNSS re-ceivers. Combined the two steps,the net antenna array's manifold can be separated. Simulations verify the correctness and performance of the calibration algorithm.关键词
全球卫星导航系统/阵列天线/载波相位差分/天线校准Key words
GNSS/antenna array/carrier phase differentiation/antenna calibration分类
信息技术与安全科学引用本文复制引用
李阳,左芝勇,彭涛,康荣雷..导航卫星阵列天线的快速现场系统校准算法[J].电讯技术,2018,58(5):519-524,6.基金项目
中国西南电子技术研究所技术创新基金资助项目(H17038.1) （H17038.1）
