查询词典 DOA

In this paper, a new DOA estimation algorithm for wideband sources called TOFS is introduced.

介绍了一种新的宽带源DOA估计方法：TOFS。

Chapter 2 of this paper puts forward an adaptive ESPRIT algorithm to track the time-varying DOA.

本论文第二章提出一种自适应ESPRIT算法，以对时变的DOA进行跟踪估计。

Of all the techniques of array signal processing, DOA estimation plays a very important role.

在阵列信号处理中，DOA估计占有突出重要的地位，具有广泛的应用前景。

The detection of the user′s DOA and the knowledge aboutaveragesignalstrength information are not required.

不需要估计用户的DOA和平均信号强度的信息。

Based on research of so-called space-time DOA matrix method,we propose several of its improved and generalized forms in this paper.

本文在对时空DOA矩阵方法进行详细分析的基础上，提出了该方法的几种改进与推广形式。

Welcome to DOA. Glad you made it.

欢迎来到DOA 很高兴你们准时到达了

Europe and the United States, Japan and South Korea and other countries in accordance with research findings and the standards promulgated, DOP than DOA more dangerous.

根据欧美日韩等国的研究结果和颁布的标准，DOP比DOA危害更大。

Two methods for DOA estimation, Signal Subspace Approximation and Signal Eigenvector Decomposition , are presented.

提出了DOA估计的信号子空间近似和信号特征向量分解两种方法。

The method transfers the observed data from space domain to 2-D space-time domain by exploiting the cross-correlation of the array outputs,and a large amount of virtual elements are generated through space-time processing.Therefore the constraint over the array configuration and the element identity can be significantly weakened,which means the matching subarray is no longer needed and the advantage of the traditional DOA matrix method,such as automatical parameter alignment and no need of 2-D search,is still available.

该方法在保持原DOA矩阵方法无需二维谱峰搜索和参数配对等优点的基础上，利用阵元输出之间的互相关关系将空域的阵列观测数据变换到时空域，通过空时二维处理在时空域中衍生出大量虚拟阵元，从而大大减弱了传统方法中对阵列结构、排布方式和阵元一致性的约束，不需要匹配子阵，无冗余阵元与孔径损失，并适用于阵元排列不规则的阵列。

When the signal sources have different cycle frequencies, a method to estimate the optimal time lag is presented. It solves the severe problem that the conventional Cyclic MUSIC requires knowing the optimal time lag in computing the cyclic correlation matrix. A method of two-step search for DOA estimation by employing an interleaving technique and a Joint Estimation Strategy is developed to overcome the inadequency of signal sources with the same cycle frequency having no optimal time lag.

当信源的循环频率各不相同时，提出了一种估计最佳延时的方法，解决了传统Cyclic MUSIC算法计算循环相关矩阵需要已知最佳延时的问题；为克服多个具有相同循环频率信源不存在最佳延时的不足，利用交错技术和联合估计策略，提出了两步搜索估计DOA的方法。

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