1) coherent sources
相干信源
1.
Unsymmetrical weighted spatial smoothing difference algorithm for DOA estimation of coherent sources;
相干信源DOA估计的非对称加权空间平滑差分算法
2.
A new algorithm is proposed for direction of arrival(DOA) estimation of coherent sources in the presence of colored noise,which is called spatial smoothing difference method.
针对色噪声背景下的相干信源波达方向估计问题,提出了一种空间平滑差分算法。
3.
A new algorithm is proposed for direction of arrival (DOA) estimation of coherent sources in the presence of colored noise fields,which is called “Spatial Difference Smoothing (SDS)” method.
文中提出了一种色噪声背景下相干信源波达方向(DOA)估计的新算法-空间差分平滑(SDS)算法。
2) Coherent signals
相干信源
1.
DOA estimation algorithm for coherent signals based on diagonal loading in presence of correlated noises
相关噪声下基于对角加载的相干信源DOA估计算法
2.
In real array antenna systems,mutual coupling between elements and the existence of coherent signals can significantly degrade the performance of most of the high resolution algorithms.
在实际的阵列中,阵元间的互耦和相干信源的存在都会使得大多数高分辨的DOA估计算法的性能严重下降,甚至完全失效。
3.
The DOA(Direction-Of-Arrival) estimation of coherent signals is a research hot spot of array signal processing, which is widely used in radar, communication and sonar etc.
相干信源DOA估计是阵列信号处理的一个研究热点,在雷达、通信、声呐等领域有着广泛的应用前景。
3) coherent source
相干信源
1.
New method of 2-D direction-of-arrival estimation in coherent source environment with special array;
基于特殊阵列的相干信源二维测向新方法
2.
Study on new method of 2-D direction-of-arrival estimation of coherent source;
二维相干信源测向新方法研究
4) perfectly correlated signals
相干信号源
1.
On the basis of the spatial spectrum estimator MUSIC algorithm,some modified techniques are proposed because this algorithm isn t efficient for perfectly correlated signals;Several methods which bases on the ideas of spatial smoothing technique are introduced for uniformly linear array.
在空间谱估计MUSIC方法的基础上,针对该方法对相关信号源测向性能下降甚至失效的情况,对该方法进行了修正;针对均匀直线阵,介绍了几种基于空间平滑思想的用于解决相干信号源的方法。
2.
For the spatial spectrum estimator MUSIC algorithm isn t very efficient for perfectly correlated signals,a good method which bases on the ideas of spatial smoothing and array interpolation is introduced and an estimation method of AOA under multisectorial model is proposed.
由于空间谱估计 MUSIC 算法对相关信号源测向时会导致性能下降甚至失效,对于任意设置的平面天线阵列,文中介绍了一种基于空间平滑和阵列内插思想的入射角估计方法,可以较好的估计相干信号源的入射方向;并提出了一种多扇区情况下信号源方位角的估计方法。
5) coherent sources
相干信号源
1.
In this paper,an introduction of DOA estimation of coherent sources is proposed,which is suitable for arbitrary plane array.
针对相干信号源测向以及模糊的实际问题,提出一种基于任意形状平面阵列的测向方法。
2.
Based on the mathematical model of coherent sources,both virtual array transformation and modified MUSIC algorithm are used to realize the azimuth estimation of coherent sources in this paper.
文中在建立了相干信号源数学模型的基础上,利用虚拟阵列变换思想和修正 MUSIC 算法实现了对相干信号源的方位估计。
6) coherently distributed source
相干分布式信源
1.
Parameter estimation based on Schur-Hadamard product beamforming for coherently distributed source;
基于Schur-Hadamard积波束形成的相干分布式信源参数估计
2.
To estimate the 2D DOA(direction of arrival) of local scattered signals,a novel algorithm is suggested on the basis of L-shape array of coherently distributed source by way of reducing the steering vectors from coherently distributed source in form of integral to the Schur-Hadamard product of the steering vector from point source and real vector.
研究了将相干分布式信源积分形式的方向向量化简为点信源方向向量与实向量的Schur-Hadamard积的方法,提出了一种基于L阵的相干分布式信源二维波达方向分离估计算法。
3.
The propagator method is suggested to estimate the central DOA(direction of arrival) of distributed sources especially the incoherently distributed sources.
采用传播因子估计分布式信源中心波达方向的算法,尤其是对于不相干分布式信源,利用泰勒级数将其方向向量进行一阶近似,得到形式上与点信源类似的分布式信源方向向量,再利用传播因子算法来估计其中心波达方向,有效地解决了角度扩散较小且角度信号密度不同的相干和不相干分布式信源中心波达方向估计问题。
补充资料：相干散射和非相干散射
再辐射的光量子频率和被吸收的光量子频率准确相等的散射过程称为相干散射。在相干散射的情况下，源函数准确地等于平均辐射强度。再辐射的光量子频率和被吸收的光量子频率不相等的散射过程称为非相干散射。在天体物理中，存在一系列因素使散射过程成为非相干散射。主要的因素是：原子的能级有一定的宽度、原子的热运动和湍动以及压力效应等。对于非相干散射，源函数是相当复杂的。
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