自己动手做2.4G无线网络定向天线！
Do-It-Yourself 2.4g wireless networks to do directional antenna!
在无线通信技术中，定向天线以某一波瓣辐射的电磁能。
In radiocommunications, the radiation in a lobe of a directional antenna.
利用定向天线，这种设备发射数据到远在60英里外的接收天线。
Using a directional antenna, the device shoots data to a receiving antenna as far as 60 miles away.
定向天线，让员，以减少背景与风噪声，而不需要为笨重，抛碟。
Directional Antennae allows the DSAS to reduce background and wind noise without the need for a bulky parabolic dish.
除此之外，拓扑控制还可以通过信道分配、调整定向天线方向等技术实现。
In addition, topology control can also be realized by the technology of channel allocation and adjust the direction of directional antennal, and so on.
本文利用矩量法和基于二次插值法的优化方法对电抗加载定向天线阵进行了分析计算。
Analysis and computation of reactively loaded directive arrays is done by using the method of Moments (MOM) and an optimization procedure based on a quadratic interpolation method.
本文是为了解决定向天线的相位中心问题，为侦测合一系统设计提供参考而展开研究的。
This paper is worked to solve the phase center of the directional antenna, accordingly to giving some references for the interception and Direction-finding system.
中波天线大部分采用铁塔天线，非特殊地形或特别要求的服务区外，均采用不定向天线。
While mid-wave antenna is mostly iron tower antenna, we do not use directional antenna except that we need special service in special area.
针对定向天线和无线信道的特点，有许多基于定向天线的接入控制协议被提出来，以实现信道的空分复用。
For the directional antenna and wireless channel characteristics, there are many directional antenna based access control protocols have been proposed to achieve channel spatial reuse.
为了有效地利用定向天线的空分复用的特点，同时减少由于其方向性带来的一些影响，需要提出一种新的无线MAC协议。
In order to effectively use directional antenna space division multiplexing features, while reducing some of its directional influence to bring the need to propose a new wireless MAC protocol.
然后设计、提出了基于定向天线的适用于机间数据链的时隙分配算法及路由协议并利用OPNET仿真软件验证了网络性能。
And then time slot allocation algorithms and routing protocols based on directional antenna are designed for IFDL. At last performance of the network is simulated with OPNET.
在这种情况下，通常还不知道其它用户的扩频码和数据信息时，利用定向天线的空间分割方法是减小多址干扰的简单有效措施。
Considering that spread sequences and data of other users cannot be also attained, the space division receiving could be a simple and effective method to reduce MAI.
在这种情况下，通常还不知道其它用户的扩频码和数据信息时，利用定向天线的空间分割方法是减小多址干扰的简单有效措施。
Considering that spread sequences and data of other users cannot be also attained, the space division receiving could be a simple and effective method to reduce MAI.
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