分析了有望用于毫米波成像焦面阵的介质加载波导阵元。
Waveguide loaded with dielectric, which is used as focal plane array element in millimeter wave imaging, was analyzed.
天线阵元的位置误差会影响天线阵元所接收到信号的相位。
The error of antenna array element position affects phrase of received array signal.
天线方向图综合的一项主要任务,是确定阵元的激励系数。
A main mission of antenna pattern synthesis is to determine the array's excitation coefficients.
还研究了基阵中各阵元自辐射阻抗与互辐射阻抗的计算方法。
And the analytic calculation method of the self radiation impedance and mutual radiation impedance of the transducer array is studied.
波达方向估计是利用天线阵元对空间信源的来波方向进行估计。
DOA (direction of arrival) estimation is realized by using antenna array to estimate the arrival direction of space signal source.
结果表明,随着阵元间延迟时间的增加,声束偏转角逐渐增加。
The results show that the steered Angle of acoustic arrays increases with the delay time increasing between the neighbour elements.
针对偶极子天线阵,分析了阵元互耦影响和频率特性及其散射特性。
The research featured compensation for the mutual coupling effect between the array elements, frequency characteristics, and the scatter.
宏命令可以按照要求一次完成所有阵元的建模、相位修正和幅度加权。
The macro command can complete the modeling, the phase correction and the amplitude weighting of all array elements within the requirements.
并且,实现阵列的宽频带和高增益及阵元间的互耦分析将是研究的重点。
The research emphasizes the wideband, high gain and analysis of the mutual coupling of microstrip antenna elements.
结果表明,对于半波长的偶极子阵列,当阵元间距为半波长时性能达到最佳。
The results indicate that a half-wave dipole array has good performance when array element space is also half-wave.
分析表明,角度扩展和阵元间距是影响接收信号空间衰落相关性的主要因素。
The resulting analysis indicates that the angular spread and spacing between elements are main factors effecting on spatial fading correlation of received signals.
列阵透镜由多个列阵元拼接而成,用以改善主透镜焦点附近能量分布的均匀性。
Lens array consists of many array units, which can improve energy distribution uniformity around the focus of main lens.
针对失效阵元给阵列性能带来的影响,提出一种基于信号重构的阵列失效校准方法。
Failed elements can seriously degrade the performance of an array and a method for array failure correction based on signal-reconstruction is presented.
本文根据微波网络理论,建立了阵元的数学模型,推导了F2和F1之间的解折关系。
Based on the microwave network theory, the mathematical model of dipole in the array is set up in this paper. The relationship between F1 and F2 is derived.
随着相控阵雷达天线阵元数目的增大,传统的电子学技术将很难满足实时信号处理的要求。
With the number increasement of array antenna element, traditional electronics technology cannot meet the requirement of real-time processing.
本文将已介绍模型中的全向阵元改为微带阵元,观察并分析有向阵元在天线阵列中的应用。
The paper replace all Orient elements with microstrip array elements, observing and analyzing microstrip elements application in the spherical conformal array.
适当地选取时延和非均匀阵列阵元位置,该方法的信号频率和2 D到达方向估计无模糊。
With choosing signal time delay and element location of nonuniform array properly, the estimated frequencies and 2 D directions of arrival are unambiguous.
超声相控阵技术通过对超声阵列换能器中各阵元进行相位控制,获得灵活可控的合成波束。
Ultrasonic phased array technique can help to achieve flexible, controllable synthesized ultrasound beam by exciting each element of an ultrasonic array transducer with independent phase delay.
在研究波束域高分辨MUSIC算法的基础上,本文把阵元域WSF算法推广到波束域中。
Based on the study of beam space high resolution MUSIC algorithm, we expand the element space weighted subspace fitting (WSF) algorithm into beam space in this paper.
首先,以各单元馈电电流和单一阵元间距为变量,对一般天线阵进行了降低旁瓣电平的优化。
The distance between antenna elements and element's excitation currents are used as variables to optimize the side lobe of equal space linear array firstly.
提出空间均衡方法用来消除由天线的机械加工误差和阵面的边缘绕射引起阵元间的幅相误差。
The space equalization method (SEM) is put forward in this paper to eliminate the amplitude and phase errors among antennas caused by mechanical manufacturing errors and array edge effects.
本文提出了以声脉冲管测量辐射头为方形的一种阵元(纵向振动换能器)的输入力阻抗的方法。
In this paper, a method of measuring the input mechanical impedance of the array element (longitudinal vibrating transducer) with square radiation head by using impulse sound tube is proposed.
同传统的阵元空间波束合成器相比,波束空间波束合成器通过减少自由度来实现运算量的减少。
The computational complexity of beam space beamformers is reduced through reducing the number of degrees of freedom compared with the traditional element space beamformers.
分析了空间谱估计中多信号源方向和频率估计中通道失配和阵元互耦导致系统性能下降的机制。
The mechanism of the performance degration for space-frequency spectrum estimation due to ChannelMismatching and Sensor Coupling is analyzed.
提出一种在阵元通道增益不一致情况下多个空间窄带信号波达方向(doa)的快速估计算法。
A novel approach, which is totally different from the traditional methods, for estimating directions-of-arrival (DOA) of multiple spatial narrow-band signals is presented in this paper.
文中基于子空间类测向方法,在远场情况下,提出了一种新的估计阵元位置误差的有源校正算法。
In the case of far field sources, based on the subspace direction-finding technique, a new method for active calibration of array shape is presented.
文章考虑了阵元宽度对主瓣半功率点宽度的影响,并与忽略阵元宽度的线列阵的情况进行了比较。
This paper studies the effects of array element width on half-power bandwidth, and proposes a new method.
文章考虑了阵元宽度对主瓣半功率点宽度的影响,并与忽略阵元宽度的线列阵的情况进行了比较。
This paper studies the effects of array element width on half-power bandwidth, and proposes a new method.
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