DOA estimation and parameter separation of broad-band stochastic electromagnetic waves
DOA estimation and parameter separation of broad-band stochastic electromagnetic waves
复制标题
宽带随机电磁波的DOA估计和参数分离
DOI：
--
复制
发表时间：
2012
期刊：
影响因子：
--
通讯作者：
P. Russer
中科院分区：
文献类型：
--
作者：
J. Russer;G. Scarpa;P. Lugli;P. Russer
时域电磁干扰（EMI）测量系统以GHz采样率对宽带EMI信号进行采样，并通过数字信号处理计算EMI频谱。通过使用基于自适应滤波算法的方法来抑制环境噪声，可以在被电磁环境噪声污染的测试地点处执行被测设备的电磁干扰的测量。在这项工作中，我们描述了宽带时域到达方向（DOA）估计方法的应用，用于分离从各个方向入射的波，并通过这种方式从被测设备的噪声中过滤环境噪声。
Time-domain electromagnetic interference (EMI) measurement systems sample the broad-band EMI signal with GHz sampling rates and compute the EMI spectrum by digital signal processing. By suppressing ambient noise using methods based on adaptive filtering algorithms, measurements of electromagnetic interference of a device under test can be performed at a test site polluted with electromagnetic ambient noise. In this work we describe the application of a wideband time-domain direction of arrival (DOA) estimation method for separating the waves incident from various direction and by this way filtering ambient noise from the noise of the device under test.