公开(公告)号：US07973715B2

公开(公告)日：2011-07-05

申请号：US12425689

申请日：2009-04-17

申请人： Alain Biem ,  Lars Kristen Selberg Daldorff ,  Deepak Srinivas Turaga ,  Olivier Verscheure

发明人： Alain Biem ,  Lars Kristen Selberg Daldorff ,  Deepak Srinivas Turaga ,  Olivier Verscheure

IPC分类号： G01S5/02

CPC分类号： G01S3/74

摘要： A system to determine a direction of arrival of each of a plurality of constituent signals of a superimposed wave includes a tripole radio antenna, a sampling unit, a frequency determining unit, an amplitude and phase determining unit, and a direction determining unit. The sampling unit is configured to periodically sample an output of the tripole radio antenna to generate at least two samples. The frequency determining unit is configured to determine frequencies for each dimension of the constituent signals by performing a unitary matrix pencil method on the at least two samples. The amplitude and phase determining unit is configured to determine x, y, z amplitudes and x, y, z phases for each constituent signal using the determined frequencies. The direction determining unit is configured to determine a direction of arrival for each of the constituent signals from the determined frequencies, amplitudes, and phases.

摘要翻译： 确定叠加波的多个构成信号中的每一个的到达方向的系统包括三极无线电天线，采样单元，频率确定单元，幅度和相位确定单元以及方向确定单元。 采样单元被配置为周期性地对三极无线电天线的输出进行采样以产生至少两个采样。 频率确定单元被配置为通过对至少两个采样执行单一矩阵铅笔方法来确定构成信号的每个维度的频率。 幅度和相位确定单元被配置为使用确定的频率来确定每个构成信号的x，y，z幅度和x，y，z相位。 方向确定单元被配置为从所确定的频率，幅度和相位确定每个组成信号的到达方向。