查询词典 antenna array

The results of experimental investigations of dimensions, high electrical strength, cardioid pattern with linear polarization of the pulse radiated are ideally adapted to be used as a steering antenna array element.

研制此天线利用了能量应用这种概念，其有小的尺寸，高的电场强度，线极化辐射脉冲的心形曲线图，并且完全适合作为扫描天线阵扫描单元。

ABSTRACT The design theory of cylindrically conformal slotted-waveguide array antenna fed by curved waveguides is studied.

本文研究用弯波导馈电的圆柱共形波导缝隙阵列天线的设计理论。

In this chapter proposed the repetition iteration algorithm through the training sequence and its the corresponding array data-in repetition useenlarges the TD-SCDMA channel in the iteration step, may approach theoptimum result under the short data length, take the LMS algorithm asthe example simulation result indicated this method is feasible, mayeffectively improve the TD-SCDMA system smart antenna the performance.

本章中提出的重复迭代算法通过把TD-SCDMA信道中训练序列及其对应阵列输入数据重复使用加大迭代步数，可以在短的数据长度下逼近最佳结果，以LMS算法为例的仿真结果表明该方法是可行的，可以有效改善TD-SCDMA系统智能天线的性能。

The hardware of this system consists of antenna array, Doppler direction finder, system controller and display. The software-work mode controller, data processing and angle display.

整套系统的硬件部分包括天线阵、多普勒无线电测向仪、控制电路板和显示电路板，软件部分包括工作模式控制部分、数据处理部分和角度显示部分。

Time-Frequency parameter estimation and direction finding for nonstationary signals impinging on an antenna array over a wide frequency band (2~18GHz) is under in-vestigation, and a new method for parameter and 2-D Angle-Of-Arrival estimation of spatio-temporal undersampled LFM sources is proposed in this paper.

摘要针对宽频段(2-18GHz)内非平稳来波信号的参数估计和测向问题，提出一种时空欠采样线性调频信号参数与二维到达角联合估计方法。

The results show that the gain and directivity performance have bothbeen improved when using an antenna array.

分析结果表明，这两种天线布成阵列后其增益都得到了明显的改善，方向性得到了增强。

In this paper,a technique for numerical calculation of a dual-cylindrical antenna array is investigated.The admittance matrix of the equivalent network is also presented.

本文介绍了一种双圆柱体结构全向天线阵列的表面电流及等效端口导纳矩阵的计算方法，根据这个算法，本文计算了在一定物理尺寸下该天线阵列的电流分布和端口导纳矩阵。

This paper investigates a new method for synthesis of the hexagonal antenna array.

摘要该文研究了一种综合正六边形阵列天线方向图的新方法。

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。

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。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。