查询词典 antenna resistanc

MOM and its accelerated algorithm MLFMM were introduced to simulate the planar Archimedes spiral antenna,conical spiral antenna and radome with antenna.

采用矩量法和MLFMM来分析平面阿基米德螺旋天线、角锥螺旋天线和天线罩对天线性能的影响。

Planar Archimedes spiral antenna,conical spiral antenna and the printed log periodic dipole antenna,were researched in frequency domain on the demand of jammer and seeker.

根据干扰机和导引头应用需要，从频域来研究平面阿基米德螺旋天线、锥台螺旋天线和印刷对数周期天线。

There are all kinds of antennas used in EMC test such as biconical antennas, log periodic antenna, helical antenna, ridged horn antenna and etc.

用于电磁兼容试验的宽频带天线有很多类型，如双锥天线、对数周期天线、螺旋天线、喇叭天线等等。

In Chapter 4,further theoretical study on UWB biconical antenna and V-coni-cal antenna is presented.The theory of biconical and V-conical antenna with ellipticcross section is developed in the sphro-cone coordinate system under the assump-tion of TEM mode.

第四章研究UWB/SP的辐射天线，对双锥天线及V—锥天线在理论上作更进一步的研究，发展了无穷长双椭圆锥天线的理论提出了一种新天线结构形式-V椭圆锥天线。

During experiment researches, an impedance converter is designed to connect the standard port with the antenna input port, and the method of comparing with standard linear polarized antenna is used to measure array antenna circular polarized gain.

在实验中，设计了用于连接标准接口和天线输入口的阻抗变换器，对阵列天线辐射特性的测量采用了标准线极化天线比较法。

A kind of best baffle-beard suitable for applications in the dual-frequency base station antenna is presented, meanwhile, we adopt the PSO algorithm to optimize the parameters affecting antenna pattern such as the phase of the elements, the space between the elements, such that the pattern of antenna can be shaped in the vertical plane （the pattern in the vertical plane has Cosecant beam in the service area）.

针对我国移动通信频率，以基站天线的双频工作以及阵列波束赋形为目标，设计了一种满足基站天线双频辐射要求的最佳反射板形状，并通过PSO全局优化算法优化各单元馈电相位并调整其间距以实现垂直面方向图双频波束赋形的目的（即垂直面方向图在所覆盖的服务区域内具有余割波束）。

The working situation of whole system and antenna have been analyzed and tested, the results show the main p roperty of antenna meet to design and application requirements, which can be used to practical exporation. The evaluation results of borehole radar systemps detection ability and application prospect using this antenna show the detection distance of borehole radar system in granite and limestone is several decameter to 100 m.

分析检验了整个系统和天线的工作状况，实验表明天线主要性能满足设计和工程应用要求，可应用于实际勘探；并对采用本天线的钻孔雷达系统的探测能力和应用前景进行了评估，钻孔雷达系统在花岗岩、石灰岩等岩层中的探测距离可到几十米至100 m。

Experiment results show that equiangular spiral antenna basked EBG structure has a wider frequency bandwidth, higher gain, and larger front-to-back ratio than a traditional spiral antenna with ground plate; and also the thickness of antenna is reduced obviously.

实验结果表明，背衬EBG材料的等角螺蜷天线与传统的带反射板的等角螺蜷天线（辐射器离反射板的高度为λ／4）相比能够同时提高增益、展宽带宽、改善前后辐射比，并且显著减薄天线的厚度。

The antenna access for the device is under the flip-up antenna and I am already concerned about the longevity of the card as looking down into the antenna port hole I do not see a lot of supporting material in and around the connection.

天线准入器下翻盖了天线和关心我已经长寿的卡俯视港口进入天线孔我看不出有很多方面和周围的物质支撑。

Finally, it analyses the time complexity of the algorithm and researches how it is influenced by culture operator.3、The paper presents the evaluation standard of the GA's application capability. Basing on characters such as continuity, multi-peak, vibration, randomicity as well as large-scale, five functions are selected to test search ability and robustcity of co-evolution algorithm. Finally, it analyses the simulation result and researches the influence of algorithm brought by culture operators.4、Basing on the concept of collection overcast, it researches the task distribution issue and constitutes delaminated math model on task distribution issue. It puts out the co-evolution algorithm of subtask's decomposing. The experiment compare IGA、SGA to CN and validates the efficiency of co-evolution algorithm on the NP completeness issue.5、Being aim at the optimization issue of load of antenna near ground, it combines many GA strategies and puts forward strategic meme. And it puts out co-evolution algorithm of load of antenna design. And it emulates the optimization design of load of antenna near ground. Finally, it valuates the co-evolution algorithm's efficiency on the continuum search issues of multi-variable and multi-peak value.6、Being aiming at the knowledge of image model matching, it adopts single meme and real code. It puts out fast co-evolution matching algorithm strategy. Basing on NPROD resemble measurement, I emulate the indiscrimination model matching and discrimination model matching. Finally, it valuates the co-evolution algorithm's efficiency on the real code and real time search issue.

分析了算法的时间复杂度，研究了文化算子对算法时间复杂度的影响。3、提出了GA的应用性能评价标准，从连续性、多峰性、随机性、振荡性、广域性多个角度出发选择五个测试函数，对共同进化算法的搜索性能和鲁棒性作了函数优化的性能测试，分析了仿真结果，研究了文化算子对算法的影响。4、基于集覆盖的概念，研究了MAS中的任务分配问题，建立了任务分配问题的分层数学模型，给出了子任务分解共同进化算法，实验比较了IGA、SGA、CN，验证了共同进化算法对NP完全问题的有效性。5、针对近地天线加载优化设计问题，结合多种改进GA策略，提出了策略型拟子，给出天线加载设计的共同进化算法，对有耗半空间对称偶极子天线加载优化设计作了仿真实验，验证了共同进化算法对多变量多峰连续搜索问题上的有效性。6、针对图像模板匹配问题的领域知识，采用单类拟子和实数编码，给出快速共同进化匹配算法策略，基于NPROD相似度测度，仿真试验了无差别和有差别模板匹配，验证了共同进化算法对实数编码和实时性搜索问题上的有效性。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48