查询词典 antenna

It is found out from practice that the traditional method for measuring the horizontality of the antenna pedestals of CINRAD/SC weather radar is difficult to use at a common radar station, and the measurements contain obvious errors.

从实际检测工作中发现，使用传统方法对CINRAD/SC天气雷达天线座水平度进行检测，在普通基层雷达站其可操作性比较差，检测结果中含有比较明显的误差成分，不够准确。

In this research, hybridize the HF and LF numerical softwares to simulate the antenna radiations under large structure is the main work.

中文摘要本研究主要工作是利用高低频的电磁软体模拟天线在超大型结构体下的辐射。

A Cassegrain dual reflector antenna which consists of a TEM horn, a hyperbolical subreflector and a parabolic reflector, was developed to radiate high power UWB microwave.

为了减小馈线损耗和方便天线旋转，设计了超宽带Cassegrain双反射面天线系统。

The higher number of patches in an array will improve the performance of the antenna.

更高的数量的补丁在数组将会表现得更好天线的性能。

In this paper,nonsteady interaction between moving body with antenna system and plasma in region of compression is investigated indetail.

该文研究了空间飞行体在运动过程中，其前端压缩区内飞行体与等离子体的非稳态相互作用问题，得到了在强天线辐射源高频场作用下的控制方程。

Navigation control system is equipped with all-solid-state 1 / secondary radar, instrument landing system runway two-way, bi-directional approach lighting system, omni-directional beacons Units, ground-to-air VHF data link and four / eight-channel common antenna system and other advanced equipment to ensure that aircraft normal flight and the night and blind drop requirements.

航行管制系统配备有全固态一／二次雷达、跑道双向仪表着陆系统、双向进近灯光系统、全向信标台、地空数据链及VHF四/八信道天线共用系统等先进装备，保证飞机的正常飞行及夜航和盲降的要求。

The method of PEC-TDS surface integral equation is used to analyze the microstrip antenna due to the substrate is much smaller than the wavelength.

该论文并不具备太大的实际意义，利用积分方程方法计算微带天线，其关键问题在于分层介质格林函数的计算问题。

The sidelobe has many ripples in condition of small training sample size and the diagonal loading technology is applied to this method, which improve the convergence speed of sidelobe. We also study the pattern control of area array. The effectiveness of this new method is illustrated by the designed simulations.5. Adaptive sidelobe cancellation is a important part of phase array radar. To realize low sidelobe and suppressing the interferer the antenna technique and signal process are combined.

用对角加载方法解决了小快拍数下收敛速度慢的问题，并仿真给出了加载量的选取范围，对面阵的自适应方向图控制文中也进行了详细讨论，阵列幅相误差和互耦误差对自适应方向图控制影响，文中也给出了仿真和分析。5、自适应旁瓣相消是相控阵雷达技术的一个重要组成部分，它将天线技术与信号处理技术结合在一起，使相控阵天线实现超低副瓣，达到抗有源干扰的目的。

The conventional adaptive beamforming techniques like MMSE and NLMS beamformers can not provide a satisfied performance in some situations such as antenna array overloading and a small angle difference between a desired signal and an interferer.

在天线阵列超载，以及强干扰与期望用户信号夹角过近的情况下，传统的线性阵列信号处理算法，如MMSE(minimum mean-square error)、NLMS等表现并不理想。

The top image, a wide field X-ray view, reveals spectacular loops of hot gas spreading out from the southern part of The Antenna into intergalactic space.

上图是宽视场 X 射线照片，其中显现的是壮观的热气体环，从触角星系的南侧向外延伸至星系际空间。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷