查询词典 antenna array

However, phase quantization errors affect the accuracy of phased array antenna beam pointing badly, which is mainly researched here.

为改善这一情况，本文对相位量化误差引起的相控阵天线波束指向精度问题进行了研究。

The performance of the vector modulator is proved by experimental results. In addition, applications of the vector modulator in practical systems such as adaptive antenna array are presented, with its calibration method to improve carrier and sideband suppression.

最后给出了矢量调制器的测试结果和它在自适应天线阵等实际系统中的应用情况，并讨论了用于提高载波和边带抑制、满足高精度要求的校准方法。

The 〓 results show that arrays of unequal dipoles may be very 〓 in the design of antenna array systems.

本论文中还讨论了由不相同的天线单元组成的天线阵的综合问题，得到的结果是令人惊异的。

Multiple-input multiple-output based on multiple antenna array and space time coding techniques can take full advantage of the trait of wireless channel to improve the system capacity and quality of communications, without increasing the transmitting power and frequency usage, therefore, they has become one of the key technology hotpots of current and future wireless communications.

基于多天线阵列的多输入多输出和空时编码技术，充分利用无线信道特性，可以在不增加发送功率和频谱的条件下提高整个系统的容量和通信质量，已成为当前及未来无线通信关键技术的研究热点。

This algorithm is capable of adjusting the weights of the antenna array in real time to respond to and improve the global positioning system received signals coming from the desired directions and at the same time to highly suppress the jammers coming from the other directions.

这种结构通过提调整天线阵列的权值，实时地接收并改变来自各方向的GPS信号，同时对不同方向的干扰信号有高的抑制比。

In this dissertation, we focus on the design of the CPW-fed meander line slot antenna array for operational frequency band from 38 to 38.5 GHz.

本论文主要的研究目标是将共面波导馈入蜿蜒曲线形开槽阵列天线设计於工作频带为38GHz至38.5GHz。

Space-time signal processing as well as its application in mobile communications the Smart Antenna System, has been one of the prent focuses in array signal processing field.

时空二维阵列信号处理及其在移动通信中的应用——智能天线技术是目前阵列信号处理领域研究的热点之一。

This paper proposes a single channel detection receiver scheme for the HF adaptive three-array nulling antenna system and analyzes the feasibility of and the methods for its implementation.

文中对HF自适应三元阵列零位天线系统提出了一种单通道检测接收机方案，并分析了实现的可行性，给出了具体的实现方法，同时讨论了相关矩阵的算法。

For this reason, we make a mechanized clamping apparatus to combine the swivel table, the antenna array, and the K-connector together.

故我们设计了一个机构化的夹具，将转台、天线及K-Connector三者加以固定在一起，置於无反射室内的转台上。

It is placed on the swivel table in the anechoic chamber in order to connect the signal part of both the K-connector and the antenna array. When the swivel table is driven by a motor, it will not be vacillating and staggering. Therefore, we can reduce the error of our measurement.

此夹具的弁酮陛G协助K-Connector的信号线能顺利与天线的信号线接触，且当马达带动转盘上的天线而不至於摇瞻ㄘw，故可使得量测上的误差降到最小。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。