In processing of array signal, Direction of Arrival (DOA) of target can be obtained by extracting spatial frequency of echo.
在阵列信号处理中，提取回波信号中的空间频率，可以得到目标的方位信息。
An algorithm used trigonometry to passively locating a moving emitter with direction of arrival (DOA) and time difference of arrival (TDOA) of the emitter signal is given.
提出了一种利用平面解三角，并结合辐射源信号到达方向和脉冲到达时间差对运动辐射源进行单站无源定位的算法。
In order to verify the validity for signal phase matching principle, the experiments of DOA (Direction of Arrival) estimation are carried out at reservoir by using 16-sensor array.
为了验证信号相位匹配原理的正确性，利用自制的16元线列阵，在水库进行了声源定向实验研究。
The Doppler frequency of signals was used to estimate the direction of arrival (DOA) of desired signal with unknown array response vector.
在未知阵列响应矢量的条件下，利用信号的多普勒信息，估计出期望信号的波达方向。
DOA (direction of arrival) estimation is realized by using antenna array to estimate the arrival direction of space signal source.
波达方向估计是利用天线阵元对空间信源的来波方向进行估计。
The orthogonality between the signal subspace and the noise subspace is widely employed to implement the Direction of Arrival (DOA) estimation.
利用信号子空间和噪声子空间正交性，可以实现超分辨波达方向(DOA)估计。
The source number and DOA(direction of arrival) must be estimated in the space array signal processing before receiving signal correctly.
一般的阵列信号源数和方向估计都是在噪声环境里进行的。
The adaptive beamformers often suffer severe performance degradation when there is a mismatch between the actual and presumed direction-of-arrival(DOA) of the desired signal.
当期望信号的波达方向存在不确定时，自适应波束成形器会遭受严重的性能衰减。
In the researches of direction-of-arrival (DOA) of the radar signal, the spatial spectrum estimation based on the array signal process is a usual and pervasive method.
在对雷达信号的到达角估计研究中，在阵列信号处理的基础上应用空间谱估计方法是当前较为普遍而常见的处理方式。
Spatial spectrum estimation technique is a new direction-of-arrival estimation technique based on multielement array and modern digital signal processing theory.
空间谱估计测向是一种以多元天线阵结合现代数字信号处理为基础的新型测向技术。
The direction-of-arrival (DOA) estimation is one of the most important problems in the technology of the array signal processing.
阵列信号处理的热点之一是目标波达方位（DOA）估计。
This paper proposes a blind identification approach to direction of arrival estimation of coherently distributed sources without knowing the accurate function forms of the angular signal density.
针对相干信号源分布式目标，在具体的空间信号分布函数形式未知的情况下，提出了一种基于盲辨识的分布式目标波达方向（DOA）估计方法。
ESPRIT algorithm based on subspace decomposition is usually used to estimate the direction of arrival (DOA) of source in array signal processing.
基于子空间分解的ESPRIT算法常用在阵列处理中对目标进行DOA估计。
If the space separation between strong signal and weak signal more than one beam width, the algorithm proposed can effectively extract weak signal without knowing weak signal's direction of arrival.
当强信号与微弱信号的空间间隔大于一个波束宽度时，该方法可较好地实现对微弱信号的提取。
If the space separation between strong signal and weak signal more than one beam width, the algorithm proposed can effectively extract weak signal without knowing weak signal's direction of arrival.
当强信号与微弱信号的空间间隔大于一个波束宽度时，该方法可较好地实现对微弱信号的提取。
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