查询词典 dipole antenna

Furthermore, a pseudo-antenna augmentation scheme is employed such that sphere decoding can be applied where the number of receive antennas is less than that of transmit antennal; thus enhance the applicability of this powerful algorithm.

此外，我们利用一种增加虚拟天线的架构使得球体演算法能被应用在当传送天线个数大於接收天线个数的情况；这个方法增加了球体解码演算法更大的可用性，而且不致改变它原有的低运算量及高效能的特性。

On the basis of ESTs, three antenna specific protein—Ac-ASP1, Ac-ASP2 and Ac-ASP3, were cloned and identified through the transcriptional profiles and immunocytochemical localization in antennal sensilla. All above will produce an important basis to the exquisite olfaction and action of discrimination against others and resistance to mites of A.

在此基础上，着重通过对中蜂主要的触角特异蛋白——Ac-ASP1，Ac-ASP2和Ac-ASP3进行基因克隆，并通过其在触角中的转录表达谱和在触角不同感器内的亚细胞定位，以期对上述分子进行鉴定，最终对揭示中蜂灵敏的嗅觉以及独特的排异和抗螨能力奠定重要的基础。

A vehicle antitheft system includes an immobilizer unit and a portable unit. Each of the units includes an antenna, a communication part, a data processor, and storages.

一种车辆防盗系统，包括固定单元和移动单元，各单元具有天线、通信部分、数据处理器和存储单元。

In APAR simulator system design scheme a new design is used to generate all the sum, azimuth difference and elevation difference channel target echo signal by passing only one channel signal of target through antenna gain multiplication circuit, which simplified the simulator design.

提出了在很短的一帧时间里用匀加速直线运动拟和目标实际运动轨迹的方法，简化了目标回波模拟系统并实现了目标数据的实时模拟。

The quantity computed is the expected clutter power at the output of any specified range gate by the method of integrating reflected energy between constant Doppler loci in range-gate circles with a model of sum and difference antenna gain pattern for APAR. Base on the analyzing of APAR terrain clutter spectrum, Rayleigh, Correlated Log-Normal and Weibull distribution terrain clutter of APAR general pulse signal was simulated with the method of zero memory nolinearity transform.④The Doppler frequency of target echo is simulated on video frequency in this dissertation.

该软件采用了用C语言建立框架结构，而在程序高重复部分和有运算速度要求的地方，用汇编语言编写具有高并行能力程序的方法，不仅满足了系统高运算速度和实时性的要求，也使得软件系统结构模块化，代码具有良好的维护性和重用性；③对机载相控阵雷达HPRF、MPRF的和、差通道地面杂波功率谱进行了较为全面的研究，通过建立由四个子波束构成的机载相控阵雷达杂波和差波束天线方向图数学模型，选取体现高度线杂波的修正的地面后向散射模型，以载机平飞为例，采用沿距离门——等多普勒线区域积分的方法，得到了杂波功率谱，并利用零记忆非线性变换法实现了机载相控阵雷达常规脉冲情况下瑞利分布、对数正态分布和韦布尔分布地面杂波的模拟；④提出了采用在视频上对目标回波的多普勒频率进行模拟的方法。

The high precision and fast optimiza -tion formulae for the phase center of Circular apertured horn are Presented, and the synthes is methods for the reflector antenna are discussed.

提出了园口径喇叭相位中心的快速寻求方法，并对双反射面天线的综合方法进行了研究和讨论，首次提出了反射面天线系统中馈源相位中心的广义表达式，进而提出了反射面天线系统的吻合调整与最佳匹配方法。

This thesis responds that it is impossible, and then, proposes an assumer mixing multi- antenna GPS, camera, laser radar and sequence images.

本文在最理想的情况下（相机固定、目标沿直线做匀速运动），得出了仅仅利用单相机的序列影像不能确定目标空间位置的结论。

The smart antenna technique is one of the hotspot of the recent researches and its control algorithm is crucial. This dissertation demonstrates our benefic exploration and research in this area.

智能天线技术是当今研究热点之一，其控制算法是智能天线技术的关键，本文在前人的基础上进行了有益的探索和研究。

In view of how to strengthen the receiving-signal intensity of field of TV relay stations and increase the ability to resist jamming so as to garrantee the TV relay ing quality , this article combining with the actual conditions introduces the way of making ,setting up and site-choosing of 8 -unit biserial antenna array.

本文从如何提高电视转播台接收信号场强、增强抗干扰能力、保证电视转播质量这个角度出发，结合实际介绍了8单元双列天线阵的制作、架设与选址方法。

A bristlelike part or appendage, such as the awn of grains and grasses or the process near the tip of the antenna of certain flies.

谷芒刺毛的部分或附属物，如谷物和草的芒状生长物或某种苍蝇触须附近的突起物

I think people in this lifetime in a rebirth.

我觉得人在这一生里其实也在轮回。

He had to tie her hands together.

他不得不把她的双手绑在一起。