1) direction of arrival
到来方向
1.
Considering blind beamforming algorithms without knowing the array manifold, direction of arrival, training sequence, the correlation matrix including noise and jamming and so on, a blind beamformer based on fourthorder cumulant was designed.
对波束形成算法性能进行了比较,考虑盲波束形成算法具有不需要阵列流形、到来方向、训练序列以及干扰和噪声的自相关矩阵等先验知识的特点,设计了基于4阶累积量盲波束形成器·由于直接利用入射信号的高阶量统计信息,不仅可以有效地消除高斯噪声的影响,而且可以消除加性非高斯噪声的影响·仿真实验结果证明,与最小方差无畸变响应的波束形成器(MVDR)相比,作者所提出算法适用于多径传播环境,具有收敛速度快,对信噪比的变化有更好的鲁棒性等特点
2) direction of arrival
到达方向
1.
This paper studies several different kinds of 2-D array manifolds,simulates and analyses the direction of arrival(DOA) estimation performances of the simple 2-D array,uniform square array,uniform circular array(UCA),random square array and semicircular array by means of a uniform module.
研究了几种不同二维阵列流形,通过一个统一的模型,仿真分析了简单的二维阵列、均匀方阵、均匀圆阵、随机方阵和半圆阵的到达方向(DOA)估计性能。
3) DOA
到达方向
1.
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。
4) future directions
未来方向
1.
Revolutions and future directions in food composition studies;
食物成分研究的发展与未来方向
5) watered out direction
来水方向
1.
In the development of water drive reservoirs, to correctly identify the watered out directions of producing wells is one of the important factors which should be considered in appropriately designing injection production well network, and adopting correct injection production measures.
为了准确地判断油井来水方向 ,合理部署注采井网、正确采取注采措施 ,文中利用油品分析、水矿化度分析、相关性分析和绘制井间流线图来判断来水方向 ,并将其应用到油田实际中 。
6) attacking direction
来袭方向
1.
Estimating the cruise missile s attacking direction based on terrain grads;
基于地形梯度法的巡航导弹来袭方向判断
补充资料：到来
1.来到，来临。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条