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sub array     
相关语句
  子阵
     Pattern function characteristics analyses and channel mismatch correction for DBF in subarray
     子阵DBF方向特性分析及通道失配校正
短句来源
     The problems of instantaneous bandwidth of OCPAR and subarray number are researched, the relationship between the excursion of the direction pattern and subarray number, main lobe stretched-out of the direction pattern and bandwidth, side-lobe level of the direction pattern and subarray number, pulse compression and bandwidth, pulse compression and subarray number is analyzed.
     针对X波段信号,仔细研究了光控相控阵的瞬时带宽问题和子阵数问题,分析了光控相控阵列方向图偏移与信号带宽及子阵数的关系,光控相控阵列方向图主瓣展宽与带宽的关系,方向图旁瓣电平与子阵数的关系,脉冲压缩与信号带宽及子阵数的关系,完成了相应的仿真,通过与普通相控阵的对比,总结出了光控相控阵相对于传统相控阵的巨大优势。
短句来源
     Improvement with Subarray Smoothing to the CAB Algorithm with Few Snapshots
     子阵平滑对小快拍数下CAB算法的改善
短句来源
     In this paper we mainly study two aspects of contents: ADBF signal model at subarray level and ADBF methods at subarray level.
     本文研究两方面内容:子阵级ADBF信号模型和子阵级ADBF方法。
短句来源
     The performances of applying these array manifolds to MUSIC, WSF and ML methods at subarray level are analyzed. The WSF method and ML method can be used in direction finding of coherent sources.
     分别讨论了将这几种阵列流形应用到子阵级MUSIC方法、子阵级极大似然(ML)、和子阵级加权子空间拟合方法(WSF)方法中的性能,其中后两种方法可对相干源进行测向。
短句来源
更多       
  子阵列
     We apply the numerical algorithm above to I/O 750 in3 air-gun subarray, and compare the modeling array wavelet with measurement, proved the validity of numerical simulation.
     将单枪与多枪相干的研究结果应用于I/O 750in~3套筒枪子阵列,得到模拟阵列子波,并与实际测量结果比较,证明了模拟算法的正确性。
短句来源
     A Symmetric Subarray Combination Technique for Direction-of-Arrival Estimation of Coherent Signals
     相干信号到达方向估计的对称子阵列组合技术
短句来源
     With decomposing the problem into three 1-D estimation problems and using computional efficient ESPRIT algorithm in each direction, thus theproposed method gets rid of the costly 3-D spectral peak search needed by conventional 3-D spectral estimation, By means of subarray output data matrices ooning the same column space, the estimated parameters arepaired automatically.
     由于该方法是将问题转化为三个1-D问题且在每一维利用计算有效的ESPRIT算法和利用子阵列的输出数据矩阵具有相同的列空间,因此避免了多维谱估计中的谱峰搜索和参数间的配对。
短句来源
     Processing Four-component Orthogonal Dipole Waveform of Cross-multipolar Subarray Acoustic Logging Tool (XMAC) with Linear-transform Technique
     用线性变换法处理交叉多极子阵列声波测井仪正交偶极四分量波形
短句来源
     An equivalent output covariance matrix is firstly synthesized based on a given set of subarray antennas' output covariance matrices; impinged signal's DOA estimation is then performed based on the equivalent covariance matrix;
     通过子阵列输出协方差矩阵合成等效的大阵列输出协方差矩阵,基于等效大阵列输出协方差矩阵实现达波DOA超分辨率估计;
短句来源
更多       
  子阵
     Pattern function characteristics analyses and channel mismatch correction for DBF in subarray
     子阵DBF方向特性分析及通道失配校正
短句来源
     The problems of instantaneous bandwidth of OCPAR and subarray number are researched, the relationship between the excursion of the direction pattern and subarray number, main lobe stretched-out of the direction pattern and bandwidth, side-lobe level of the direction pattern and subarray number, pulse compression and bandwidth, pulse compression and subarray number is analyzed.
     针对X波段信号,仔细研究了光控相控阵的瞬时带宽问题和子阵数问题,分析了光控相控阵列方向图偏移与信号带宽及子阵数的关系,光控相控阵列方向图主瓣展宽与带宽的关系,方向图旁瓣电平与子阵数的关系,脉冲压缩与信号带宽及子阵数的关系,完成了相应的仿真,通过与普通相控阵的对比,总结出了光控相控阵相对于传统相控阵的巨大优势。
短句来源
     Improvement with Subarray Smoothing to the CAB Algorithm with Few Snapshots
     子阵平滑对小快拍数下CAB算法的改善
短句来源
     In this paper we mainly study two aspects of contents: ADBF signal model at subarray level and ADBF methods at subarray level.
     本文研究两方面内容:子阵级ADBF信号模型和子阵级ADBF方法。
短句来源
     The performances of applying these array manifolds to MUSIC, WSF and ML methods at subarray level are analyzed. The WSF method and ML method can be used in direction finding of coherent sources.
     分别讨论了将这几种阵列流形应用到子阵级MUSIC方法、子阵级极大似然(ML)、和子阵级加权子空间拟合方法(WSF)方法中的性能,其中后两种方法可对相干源进行测向。
短句来源
更多       
  “sub array”译为未确定词的双语例句
     Study on the influence of subarray selection on the locating result
     定位子台网的选取对定位结果影响研究
短句来源
     A Efficient Planar Subarray Processing Algorithm for UWB-SAR Imaging
     高效UWB-SAR平面子孔径处理成像算法
短句来源
     3. A new subarray parallel LCMV algorithm is presented.
     3、针对大型阵列的特点,提出了一种新的自适应波束形成算法——分块并行的LCMV算法。
短句来源
     Finally,a modified Planar SubArray Processing (PSAP) algorithm is presented. It improves the computation efficiency by solving the problem of large data overlapped ratio of PSAP algorithm in UWB-SAR imaging.
     最后提出了一种改进的平面子孔径处理(PSAP)算法,解决了在UWB-SAR成像处理时,PSAP算法处理的数据交叠比很大的问题,提高了计算效率;
短句来源
     Selecting 58 earthquakes occurred in Hebei Province and adjacent regions,rules of subarray selection are studied based on analyzing the influence of station distributions on the accuracy of locating result.
     选取了河北及邻区58个不同区域的地震,分析“定位子台网”分布对地震定位精度的影响,研究“定位子台网”的选取规则。
短句来源
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  sub array
We then take the element and assess its impedance match in the finite array environment for various sub-array configurations of the full 4x12 array.
      
We are only interested in the small number of angles or time delays in the cross-correlation adjacent to the beamforming angle of the sub-array.
      
Using information in the dark count sub-array from the Skymap packet, a dark count frame is subtracted from the map array.
      
The two sub-array beamforming outputs are cross-correlated to detect the time delay of the signal for each steering angle.
      
The sub-array can be pointed one beam diameter ahead of the target being tracked.
      
更多          


By analyzing the principle of a grating lobe forming of the three-dimensional cylindrical arrays, the relationship between the limit wavelength of the vertical beam scanning and other parameters of the arrays is derived, and the directivity functions are shown complex. In order to eliminate vertical grating lobes of a cylindrical array and expand beam scanning region, the nullr are interposed in the directivity patterns of the ring arrays by means of the sub-arrays phase shift....

By analyzing the principle of a grating lobe forming of the three-dimensional cylindrical arrays, the relationship between the limit wavelength of the vertical beam scanning and other parameters of the arrays is derived, and the directivity functions are shown complex. In order to eliminate vertical grating lobes of a cylindrical array and expand beam scanning region, the nullr are interposed in the directivity patterns of the ring arrays by means of the sub-arrays phase shift.

本文分析了三维圆柱形基阵波束垂直栅瓣形成机理,导出波束垂直扫描极限波长和基阵其他参数的关系,指出指向性函数通常是复数,并用子阵相移法来调节复合子阵的相位特性,在圆环阵指向性图适当位置插入零点,以消除垂直栅瓣、扩大基阵波束扫描范围。对不同基阵,找出相移参数β的最佳值,一般取kβ≈0.5为宜。以两个弧面阵为例作了数值计算,证明对全圆阵导出的极限波长也适用于弧面阵;和相同条件下未相移基阵相比,可将波束垂直扫描范围扩大到间距d为五个波长左右,或将基元数减少2—4倍;当未相移基阵指向性图出现栅瓣时,并可将指向性指数提高1.7到5.5dB。

The self-designed and made wedge-ring detector comprises of a first and a second semi-circular sub-arrays. The first sub-array consisting of 32 wedge-shaped sections, is used to sample the directional information, while the second sub-array made up of 32 semi-circular rings is used for the radial information, in which the blindnes between the sub-arrays is avoided. The detector is made into a monolithic array of P on N silicon photovoltaic detector by forming...

The self-designed and made wedge-ring detector comprises of a first and a second semi-circular sub-arrays. The first sub-array consisting of 32 wedge-shaped sections, is used to sample the directional information, while the second sub-array made up of 32 semi-circular rings is used for the radial information, in which the blindnes between the sub-arrays is avoided. The detector is made into a monolithic array of P on N silicon photovoltaic detector by forming a layer of P type silicon on the surface of a crystal of highly conductive N type silicou. Its response sensitivity is about 0.3mA/mW at 6328(?) and its element response ununiformity is within 10%.

楔环阵列探测器是光电混合型功率谱分析系统实现光电转换的关键器件。本文报导了环探测单元没有角度盲区的新型楔环阵列探测器的设计、制造和特性。

A desired pattern factor can be regarded as a superposition of a set of"sub-array factors",each linearprogressing phase and weighting amplitude.The main-beam of each sub-array corresponds to a certain space sampling point.The sum of all space hamonic currents is the excitation which corresponds to the desired pattern.By adjusting the number of space hamonic,the weighting coefficients and the positions of sampling points,the required pattern can be obtained.Finally,an example is given...

A desired pattern factor can be regarded as a superposition of a set of"sub-array factors",each linearprogressing phase and weighting amplitude.The main-beam of each sub-array corresponds to a certain space sampling point.The sum of all space hamonic currents is the excitation which corresponds to the desired pattern.By adjusting the number of space hamonic,the weighting coefficients and the positions of sampling points,the required pattern can be obtained.Finally,an example is given for illustrating this method.

首先把待求阵因子分解为若干组子阵因子的叠加.每个子阵对应一组相位线性递变、幅度按一定规律加权的空间电流谐波,子阵阵因子的空间指向对应一定的空间抽样点.各空间谐波之和即为阵元的总激励,它对应等求的阵因子.调整空间谐波的个数、相对幅度及空间抽样点位置,即可综合出理想的方向图.综出一个设计实例以说明这种综合方法.

 
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