英语释义

1. the angular diameter of the region adjoining an antenna through which the reception of the signal is best

片语

beamwidth h射束宽度

BW BeamWidth波束宽度

displayed beamwidth射束宽度显示

Horizontal beamwidth水平波瓣宽度

Antenna beamwidth天线波束宽度

Elevation Beamwidth仰角波速宽度

azimuth beamwidth方位波束宽度

英汉例句

• experimented on the equally spaced line array, the experimental results show that the theoretical values of the beamwidth are well consistent with that obtained in the experiments.

  以均匀间距线列阵作了实验验证，波束宽度理论值和测量值一致性较好。

• the big difference between measured and theoretic manifold of the circular array showed that the broadband constant beamwidth beamforming method used in the paper has good tolerance.

  实验圆阵的实测阵列流形和理论阵列流形存在较大误差，这表明该文采用的可适用于任意结构阵列的宽带恒定束宽波束形成方法具有良好的宽容性。

• the one-dimensional phased array antenna discussed in this paper needs to radiate a narrow beamwidth and low sidelobe pattern on the horizontal, a sum and difference beam on the vertical.

  所设计的一维扫描相控阵天线在方位面具有窄波束、低副瓣特性，在俯仰面实现和差波束。

• this antenna has been sucessfully used in an obstructed path link over a few kilometers. the beamwidth is fairly narrow and the antenna is low profile.

  这个天线曾成功地用于一个超过几公里远的阻塞的通道，波束宽度相当狭窄，天线不引人注目。

• a high resolution doa estimation method for coherent wide band sources based on outputs of constant beamwidth beams is proposed in this paper.

  本文给出了基于恒定束宽波束输出的宽带相干源高分辨测向方法。

• here a scheme to implement broad-band constant beamwidth digital beam-former has been presented. the results of computer simulation show the scheme is effective.

  本文给出了一种宽带恒定束宽数字波束形成器的实现方案，计算机仿真结果表明了该方案的有效性。

• with the aid of a computer, curves of beamwidth and side lobe versus the antenna parameters are plotted.

  并借助计算机绘出了主瓣宽度和副瓣电平与天线主要参数的关系曲线；

• in this paper, a multi-beam broadband constant beamwidth beam former system is proposed using tms320f206 and imsa100 as main chips to realize the beam forming procedure in real time with high speed.

  文章提出来用tms320f206及imsa100为主要芯片，构成多波束宽恒定束宽波束形成器，可实现实时、高速、高性能的多波束宽带恒定束宽波束形成，并给出了具体设计方案。

• a long baseline with narrower beamwidth can also be provided by distributed space-based radars at the cost of appearing grating lobes.

  突破了单星雷达受天线基线长度的限制，具有更窄的波束宽度，但是会产生较多的孔径干涉栅瓣。

• several methods of sharp a narrow beamwidth is presented and used to form a narrow directivity.

  文章还提出了多种矢量水听器指向性锐化的方法，通过这些方法在低频形成恒定束宽窄指向性。

• simulation results show that in order to get satisfied thinned arrays the peak sidelobe level(psl) and the beamwidth must be considered together.

  研究了遗传算法参数和优化结果之间的关系，仿真结果表明，同时考虑峰值副瓣电平和波束宽度才能获得更满意的稀布结果。

• the broad beamwidth transducer is one of the most important key technologies of underwater detecting and communication system.

  水声信号的宽波束发射技术是水声探测、通讯中重要的关键技术之一。

• adopting this plan, it needs not to change beamwidth and there needs no common optical sys-tem for receiving and transmitting.

  此方案无须要求通信系统具有能实现宽窄波束变换的光学系统，也不用预先解决收发天线共用的问题。

• it is the key technology for design of the constant beamwidth array to calculate the weight matrix.

  恒定束宽加权矩阵的获得方法是设计此类声纳基阵的技术关键。

• numerical results show that the effect of metallization thickness is smaller on the direction of main beam and very noticeable on the beamwidth and aperture efficiency.

  数值结果表明，金属栅厚度对漏波天线波求方向影响较小，但对漏波天线的辐射效率和波束宽度有明显的影响。

• for many radar and communication applications of scanning array antennas, extreme narrow main beamwidth is required to improve the spatial resolution.

  在许多工程应用中，要求天线阵列有窄的扫描波束，以提高空间分辨率等技术指标。

• the complex weighting vectors at other frequencies satisfying the request of wideband constant beamwidth can be deduced from the one at the reference frequency.

  其它频率点上满足宽带恒定束宽要求的复权向量可以根据参考频率上的复数权值通过折算求得。

• sandwich transducer with composite horn combines the advantage of high power of sandwich transducer and the benefits of broad beamwidth of piston like transducer with small emitting area.

  夹心式复合变幅桿换能器结合了夹心式换能器的大功率容量和小尺寸活塞换能器波束宽度大的特点，因此该换能器同时兼有宽波束和高发射响应的优点。

• in this paper, the algorithm of wideband constant beamwidth digital beamforming is studied, and the implementation of digital beamforming system in wideband digital array radar is discussed.

  本文结合工程的实际需求，对宽带恒定束宽波束形成的算法进行研究，并详细讨论了宽带数字阵列雷达中数字波束形成系统的工程实现问题。

• an adaptive broadband constant beamwidth beamforming method is proposed here, and it will restrain the timbre aberration effectively with constant beamwidth in the whole work frequency band.

  提出了一种基于传声器阵列的宽带自适应恒定束宽波束形成方法，在整个工作频带内波束宽度基本保持大致相等，可有效抑制因波束形成带来的音色畸变；

• by using the aperture synthetic wideband beamforming algorithm, the theory of designing the conventional filter is improved, and a wideband constant beamwidth is reached in the appointed bandwidth.

  采用子阵合成式宽带波束形成方法，改进常规滤波器设计原理，使其可以在规定的带宽范围内获得一致的基阵指向性。

• the effect of antenna parameters on the beamwidth and side lobe level is analyzed.

  分析了天线参数对主瓣宽度和副瓣电平的影响；

• for the first two methods broadband constant beamwidth for broadband signal had also been achieved by using different number of virtual elements in array processing technology.

  对于前两种方法还提出了对宽带信号根据不同频率改变虚拟阵元数目的分子带处理技术以实现宽带恒定束宽的方法。

• according to the factors which affect the bandwidth and the beamwidth of mpa, a u-shaped micro-strip patch antenna is selected as the element for a two-dimensional system of wide angle scanning paa.

  具体分析了影响微带贴片天线的带宽和辐射波束宽度的因素，选择了一种u形微带贴片天线作为二维宽角扫描相控阵天线的单元。