首页> 美国卫生研究院文献>Sensors (Basel Switzerland) >Gain-Phase Errors Calibration for a Linear Array Based on Blind Signal Separation
【2h】

Gain-Phase Errors Calibration for a Linear Array Based on Blind Signal Separation

机译:基于盲信号分离的线性阵列的增益相误差校准

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

In this paper, a non-iterative blind calibration algorithm for gain-phase errors is proposed. A mixing matrix is first obtained from the received observation data through blind signal separation. The mixing matrix is the product of the gain-phase error matrix and the ideal array manifold matrix. Then, a spatial spectrum is constructed by using the estimated mixed matrix. The direction corresponding to the maximum point of the spectral function is proved to be the azimuth of a certain source. Therefore, after the direction-of-arrival (DOA) is obtained by a one-dimensional spectrum search, the active calibration method can be used to estimate the gain-phase errors. The proposed algorithm is not limited to the calibration for uniform linear array (ULA), but also applicable to a non-uniform linear array. Moreover, the estimation performance of the algorithm will not be affected by the magnitude of the gain errors. Some simulations are given to verify the effectiveness and performance of the algorithm.
机译:本文提出了一种用于增益相误差的非迭代盲校准算法。首先通过盲信号分离从接收的观察数据获得混合矩阵。混合矩阵是增益相误差矩阵和理想阵列歧管矩阵的乘积。然后,通过使用估计的混合矩阵构建空间谱。被证明是频谱函数的最大点对应的方向是某个源的方位角。因此,在通过一维频谱搜索获得到达方向(DOA)之后,可以使用主动校准方法来估计增益相误差。该算法不限于均匀线性阵列(ULA)的校准,还适用于非均匀的线性阵列。此外,算法的估计性能不会受到增益误差的幅度的影响。给出了一些模拟来验证算法的有效性和性能。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号