查询词典 DOA

Analyzing the inner configuration of the covariance matrix, a new multiple targets DOA tracking algorithm is presented based on a matrix norm minimization technique.

摘要该文分析了协方差矩阵的内部结构，得到了一种具有较低运算量的基于范数最小准则的多目标DOA跟踪算法。

When estimating DOA's associated with only one single path, the rotational matrix of ESPRIT algorithm is in essence a scale.

这两种算法本质上为ESPRIT算法在解析单路径DOA信息时的简化方案。

The two dimensions (2D, plane angle and polar angle) speech source DOA estimation algorithm had been proposed by combining this model and subspace methods.

对基于麦克风阵列的声源定位技术进行了研究，分析了基于麦克风阵列的远场信号模型，并结合子空间的方法推导出了声源二维DOA估计——2D-MUSIC算法，该算法适用于任意拓扑结构的麦克风阵列。

By construction, all of these methods require Nyquist-rate sampling of received signals to estimate a small number of DOA's in angle space, which is very expensive in some applications such as radar or radio astronomy.

通过构建，所有这些方法都要求接收信号的奈奎斯特率取样来估计角度空间的小数量的DOA，这在像雷达或射电天文学之类的某些应用中是非常昂贵的。

In this paper we propose a method called Generalized Spectral Correlation Signal Subspace Fitting for DOA estimation,which is applicable in both wide and narrow band scenarios.Especially,in narrow band cases,the method is capable of enlarging the effective aperture of sensor array considerably.

本文提出了一种用广义谱相关信号子空间拟合进行波达方向估计的方法，该方法同时适用于宽带与窄带信号的DOA估计，在窄带情形下还能够大大提高阵列的等效孔径。

In allusion to the energy-concentrated property of LFM signal in the fractional Fourier domain, the data model of array matrix is constructed by the algorithm and the decorrelation ability is obtained by establishing a new Toeplitz matrix. After performing a spectrum peak research, DOA estimation of coherent wideband LFM signals is obtained.

针对分数阶傅里叶交换的谱峰聚集特点，该算法构造了分数阶傅里叶域的宽带LFM信号的阵列数据模型，在FRF域内利用Toeplitz矩阵重构特性，实现对相干信号的解相干，最后通过谱峰搜索完成入射信号的DOA估计。

A circular array of sensors is found to possess several nice properties for DOA estimation of wide-band sources. C. Usha Padmini et al.

Usha Padmini等人(1994)已证明，圆阵用于估计宽带信号的DOA时具有许多好的特性。

Beamforming is one chief technique of smart antennas and there were a lot of appliable algorithms for it. These algorithms work bad unless using training sequences or the DOA information of the signal of interest, and their performance descends rapidly in the environment of multipath.

波束形成算法需要使用训练序列，或需要预先掌握期望信号的DOA信息，并且在多径环境中工作性能急剧下降。

Two methods of 2-D DOA estimation for L-shape arrays with noncircular sources are proposed.

针对单L阵提出了两种利用信号非圆特性的二维DOA估计算法。

The independent bases are denned for ICA. Using the independentbases in ICA, the DOA of signals can be estimated.

在此基础上，本文定义了独立矢量基，并利用独立矢量基的投影关系，对阵列中常见的DOA问题进行了研究，获得了对阵列信号的方位角估计。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了