子阵列

Each of the subband signals is then fed into its corresponding subband array processor, of which the outputs are combined by the synthesis filter and recovered into wideband signal.

宽带接收信号经分析滤波器组分成若干子带信号，每个子带信号经各自的子带阵列处理器处理后由综合滤波器恢复成宽带信号。

With the overview of present MIMO antenna research, the thesis brings forward a new kind of polar diversity antenna array applied in MIMO base stations, which elements are planar printed dipoles. The beamforming technology is used to obtain a particular type of elevation pattern, which has square cosecant characteristic.

本文在对目前MIMO 天线领域的研究动态进行概述的基础上，结合基站的自身特点，提出并实现了一种新型的基站极化分集波束赋形天线阵列，其阵元为平面印刷偶极子，阵列在俯仰面形成类似平方余割形式的方向图分布。

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。

The present invention has simple and efficient calculation and rapid calculation speed, can meet requirement of resent field wavelet simulating far field wavelet, is convenient for estimating and regulating quality of air gun array and can obtain exact inverse wavelet operator and improve the distinguish of earthquake data.

本发明计算简单、有效，而且运算速度极快，完全能够满足近场子波模拟远场子波的要求。方便了对气枪阵列的质量评价和调整，可求取较为准确的反子波算子，提高地震资料的分辨率。

Then, the signal detection of completely polarized is investigated with exploiting the MSD theory.

然后，利用匹配子空间检测理论研究了极化敏感阵列对完全极化信号的检测问题，极化状态未知的信号必定落入一个与到达方向有关的确定的二维子空间内。

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。

An experimental platform based on a three-dimensional digital imaging system with a microlens array was setup to reconstruct the elemental image array of a die captured in experiment, a volumetrically original image was reconstructed through this algorithm successfully.

搭建了基于微透镜阵列的三维数字成像系统实验平台，利用此算法对实验中获得的骰子基元图像阵列进行重构，成功地重构出原始物体的三维立体图像，在理论上和实验上证明了这种重构算法的有效性和可行性，并对实验中影响成像质量的因素进行了分析。

An experimental platform based on a three-dimensional digital imaging system with a microlens array was setup to reconstruct the elemental image array of a die captured in experiment,a volumetrically original image was reconstructed through this algorithm successfully.It is proved that the algorithm is feasible and valid both theoretically and experimentally.

搭建了基于微透镜阵列的三维数字成像系统实验平台，利用此算法对实验中获得的骰子基元图像阵列进行重构，成功地重构出原始物体的三维立体图像，在理论上和实验上证明了这种重构算法的有效性和可行性，并对实验中影响成像质量的因素进行了分析。

The mutual coupling in adaptive array's is studied with emphasis on the array composed of dipoles.

本文研究了自适应阵列天线的互耦问题，重点分析了半波振子单元组成的自适应阵列天线的互耦问题。

This method can be used not only in arbitrary Gaussian noise environment but also for arbitrary array geometries.

此方法的优点是不仅可以应用在任意高斯噪声环境下，而且可应用于任意排列的偶极子对阵列，放宽了对阵列结构的要求。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。