under the frame of forward/ backward spatial smoothing, several algorithms for the coherent signal sources are united in the uniform linear array ( ula), and then extended and used in uca.

1、

for most methods that have been raised, the array errors in the uniform linear array ( ula) are most difficult to estimate and the number of the signals is restricted hard.

针对均匀线阵误差测不准、一般方法对信源数限制较严等问题，本论文对幅相误差估计方法作了一些研究。

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2、

first, presents a spatial channel propagation model. consider a uniform linear antenna ( ula) at the base station ( bs) and narrowband signals transmitted at the mobile.

首先，提出一种空间信道的传播模型，考虑由移动终端发射窄带信号被均匀线性阵的基站天线接收。

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3、

firstly, the mode excitation method is used to transform the manifold matrix of uca into one with a form similar to that of a uniform linear array ( ula).

该方法对均匀圆形阵列的输出信号进行模式激励，使其阵列流形具有类似于均匀线性阵列的形式；

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4、

generally speaking, the antenna model and array model is used with omnidirectional antenna model and uniform linear array ( ula) in the link simulation of wireless communication system.

一般地，无线通信系统链路仿真中用到的天线模型与天线阵模型分别为全向天线模型和均匀线性阵模型。

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5、

after analysis of joint frequency-doa estimation techniques by uniform linear array ( ula), joint frequency-doa estimation by arbitrary array structure is researched deeply.

在对均匀线阵条件下频率与DOA联合估计进行分析后，重点研究了任意阵列结构的联合估计问题。

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6、

using the direction cosines relative to three ula axes, the correct pair is obtained, then the azimuth and elevation are estimated.

利用3个方向余弦估值进行配对，然后求得来波的方位角和仰角估计。

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7、

based on uniform linear array ( ula) model, space-time channel and space-time signal are studied; a kind of model of space-time vector channel is given.

基于均匀线阵的阵列模型，讨论了空时信道和空时信道模型，给出了空时信号的一般表达形式。

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8、

after the acquisition of aactive, ula service capability was enhanced, and the function was improved too.

在完成收购AACTIVE后，ULA在美国的服务能力大幅提高，功能进一步完善。

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9、

ula's multinational sourcing system was being formed as the domestic purchaser team was gradually mature.

国内采购团队逐渐成熟，ULA的跨国采购体系正在形成。

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10、

fourth, presenting the primary principle of line array and simulating the target echo received by ula.

第四，本文详细阐述了基本线阵原理，对等距线阵模型接收的回波信号进行了仿真。

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11、

all right. there's your medicine, little fellow. ula!

好，这是你的药，小家伙芭乐！

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12、

improved wide-band steered minimum variance spatial spectrum estimate algorithm based on ula

改进的宽带指向最小方差空间谱估计算法

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13、

the research work is based on the ula ( uniform linear array) antenna.

所有的研究基于均匀直线阵列。

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14、

in this paper, the doa of sources are estimated using music ( multiple signal characterization) algorithm by a vector-hydrophone ula ( uniform linear array), and music algorithm based on acoustic vector sensor array has been analyzed.

采用矢量水听器均匀线阵研究了利用MUSIC算法对声源进行方位估计，对该算法进行了理论推导，并对数据协方差矩阵进行本征分解，获得了信号的空间谱估计。

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15、

in this paper, the doa of sources are estimated using music algorithm by a vector-hydrophone ula ( uniform linear array) to improve the doa estimation resolution.

本文采用矢量水听器均匀线阵研究了利用MUSIC算法对声源进行方位估计，以提高对源方位的估计精度。

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16、

emily brooke, a student from university of brighton in the uk, has come up with an invention to make cycling safer.

英国布莱顿大学的学生艾米丽-布鲁克发明了一种使骑自行车更安全的装置。

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17、

inside the tv, the repairman was necessarily cramped and clearly getting hotter and hotter.

修理工在电视机柜里都要被挤扁了, 而且显然越来越热.

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18、

the cat cornered a cricket between the sofa and the television stand.

猫把蟋蟀逼到沙发和电视机柜之间的地方.

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19、

theory of convergence effect -

聚合效应论

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20、

laurel forest covers some 70% of this park, situated in the middle of the island of la gomera in the canary islands archipelago.

加拉霍艾国家公园位于加那利群岛的拉戈梅岛中心，该国家公园中70%的面积覆盖着月桂林森林。

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