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This present algorithm further distinguishes itself through sufficiently utilizes the advantage that the vector sensors provide from other beam space DOA algorithms in several regards: 1 beams are formed in the vector-field domain; 2 produce at moderate signal-to-noise ratio estimation performance comparable to the traditional scale array methods;3 these vector-field beams are formed blindly using no apriori source information and coarse estimates of the direction cosine are derived to start off MUSICs iterative search so it demand less computation; 4 deploy agilely , since the fact that the output channel is various .

本文提出了矢量传感器阵列的自适应综合校准补偿方法,还提出利用单矢量传感器速度协方差矩阵分解来求解目标源方位,使得我们不要求校准源是合作性的,也无需知道校准源的先验知识,这比起常规辅助源校准方法具备较大宽容性。随着高性能阵列处理技术及数字信号处理硬件的快速发展和矢量传感器制造工艺的不断成熟,矢量传感器将在新型水雷、低频远程智能鱼雷、声纳浮标、低频拖曳线列阵和新型舰壳声纳,灵巧传感终端,战场监视系统,反隐形雷达,通讯等军民用领域取得良好的发展应用前景。

A structure of disk system controller based on special chipset is introduced.

提出了一种通用磁盘阵列控制器的设计方案,首次提出了一种集成式的磁盘阵列系统构成的新方法。

On the basis of theoretical analysis of target diffusion in range-velocity resolution cell, the array signal covariance matrix and noise covariance matrix are estimated from some different cells respectively. The processing results from experimental data in onshore HFSWR with Minimum Variance Distortionless Respose, MUltiple SIgnal Classification and pre-whiten MUSIC respectively show that super-resolution methods can provide better resolution than CBF.

鉴于 HFSWR 工作波长较长、常规波束形成角分辨力较差的缺点,基于目标在距离—多普勒平面分布的理论分析,本文利用相邻距离、多普勒频率单元信号估计阵列协方差阵,并分别利用 MVDR 、 MUSIC 、预白化 MUSIC 方法进行超分辩处理,实测的合作飞机目标数据处理结果表明超分辩方法能明显提高阵列角度分辨力。

The establishment of elastic collision mechanism between hydrogen molecules and carbon nanotube walls and arithmetic design;? molecular dynamics simulation details of hydrogen physisorption in single walled carbon nanotube arrays and program design;? the acquirement and analysis of computer simulation results, where the influences of tube diameter, distance between tubes, temperature and pressure on hydrogen physisorption in SWCNTA are investigated in detail.

主要内容为:①巨正则系综分子动力学模拟元胞的创建;②氢分子与碳纳米管壁弹性碰撞机制的建立及算法设计;③碳纳米管阵列物理吸附储氢的分子动力学模拟细节及程序设计;④计算机模拟研究结果的获取与分析,重点研究了管径、管间距、温度和压强对单壁碳纳米管阵列物理吸附储氢的影响。

SEM images show that when the reaction solution is higher,the morphology of silver is tubular.This Ag-MPOF composite fiber has favourable conductivity and could be used as array electrode in electroanalysis.

扫描电镜分析显示:在高反应物浓度下,在孔洞阵列中进行反应得到管状银修饰的MPOF;该Ag微管-MPOF复合纤维是导电性的,可以直接作为阵列电极制造电化学传感器。

In this paper we study the translation equivalence class es of linear recurring m -arrys, and give respectively the enumeration of m -arrays with fixed period vectors and with a fixed linear complexity.

本文研究线性递归m—阵列的平移等价类,分别出了具有相同周期和相同线性复杂度的m—阵列的平移等价类的计

In this paper,a technique for numerical calculation of a dual-cylindrical antenna array is investigated.The admittance matrix of the equivalent network is also presented.

本文介绍了一种双圆柱体结构全向天线阵列的表面电流及等效端口导纳矩阵的计算方法,根据这个算法,本文计算了在一定物理尺寸下该天线阵列的电流分布和端口导纳矩阵。

One or both of transmit and receive aperture controls may include preventing some element of the transducer array from transmitting or receiving, calculating weighting apodizations to combine with standard apodizations for each frame, or determining an aperture size based on an f-number for the transducer array for each frame.

发射和接收孔径控制中的一个或二者可以包括:阻止换能器阵列中的某个元件进行发射或接收,针对每一帧计算加权变迹以将其和标准变迹相组合,或者针对每一帧根据换能器阵列的F数来确定孔径尺寸。

In the face of above cases, this paper attempts to break through the bottleneck of data security with another way. Through study of Error Correction Code and Finite Field theoretics, this paper tries to apply the Reed-Solomom arithmetic based on Finite Field Galois Field to Redundant Array of Independent Disk, and tries to realize a simple RAID6 level programme, thereby could offer an idea for securer storage device.

面对这样的现实情况,本文试图换个角度突破这个安全瓶颈,通过对纠错编码理论及有限域数学理论的一步步深入研究,尝试将基于有限域数学的Galois域Reed-Solomon算法应用到RAID(Redundant Array of Independent Disk 独立冗余磁盘阵列)磁盘阵列当中,并尝试实现小型的RAID6级别的实验程序,从而为实现更加安全的存储技术提供了思路。

The joining material may be a solder paste, the substrate may be a semiconductor chip substrate, a computer chip. The process may be used to produce flip chips, ball grid array modules, column grid array modules, circuit boards, and attachment structures of the preceding components including information handling systems.

连接材料可以是焊剂糊料,基片可以是半导体芯片基片,计算机芯片,本方法可用于制造倒装式芯片、球粒格网阵列式模块、柱形件格网阵列式模块、电路板、以及包括信息管理系统的上述元件的附着结构。

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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。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。