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数字波束形成技术
相关语句
  digital beam forming
     Intelligent Antenna and Adaptive Digital Beam Forming Technology
     智能天线与自适应数字波束形成技术
短句来源
     Application of digital beam forming technique in radar
     数字波束形成技术(DBF)在雷达中的应用
短句来源
     In modern environment of campaign, radar is requested to deal with electron interference, and phased array radar adopting adaptive digital beam forming (ADBF) technology possess this ability.
     现代作战环境的复杂性要求雷达能对付各种电子干扰,而采用自适应数字波束形成技术(ADBF)的相控阵雷达具备这种应变能力。
短句来源
     Using Digital beam forming (DBF) to enable a simple device to have good adaptability and the gram schmidt orthogonalization (GSO) array with non uniformly spaced array the algorithm with adaptive cancellation of interference can estimate the direction of arrival and the number of signal sources without knowing or estimating the number of signal sources before estimating the DOA by other methods.
     该算法利用了数字波束形成技术 (DBF) ,因而设备简单 ,适应性强 . 为实现超分辨测向 ,算法基于Gram -Schmidt正交 (GSO)网络 ,将干扰对消的原理用于信号的方向自适应定位 .
短句来源
     Adaptive digital beam forming technology is developing along with digital signals process technology, as a form of space-domain filter it is different from time-domain filter or frequency-domain filter.
     自适应数字波束形成技术是随着数字信号处理技术而发展起来的,它既不同于时域滤波也不同于频域滤波,而是一种空域滤波形式。
短句来源
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  “数字波束形成技术”译为未确定词的双语例句
     Application Problem about Digital Beamforming Technology in Radar Engineering
     数字波束形成技术的工程应用问题
短句来源
     Digital Beamforming Technology in Subarray
     子阵级的数字波束形成技术
短句来源
     Then digital interpolation beamforming, pipelined sampled-delay focusing and three digital beamforming technology include Delta-Sigma go on research, Research of the algorithm of real-time focusing delay calculation.
     然后,针对数字内插、流水线-延时-采样-聚焦和Delta-Sigma等三种数字波束形成技术进行了研究,并基于实时性研究了动态延时聚焦算法。
短句来源
     Adaptive digital beamforming is a key technique which is must adopted in modern array antenna systems.
     自适应数字波束形成技术是现代阵列天线系统必须采用的关键技术。
短句来源
     This paper introduces the theory of digital beamforming technology which has been developing in these decades of years, and discusses the value of the digital beamforming antennas used in personal communication.
     文章介绍了一项近十年来发展起来的新技术———数字波束形成技术的基本原理,并探讨了将数字波束形成天线用于个人通信在改善通信质量方面的作用和意义。
短句来源
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  相似匹配句对
     Digital Beamforming Technique
     数字波束形成技术
短句来源
     Digital Beamforming Receiver Technology
     数字波束形成接收机技术
短句来源
     Digital Beamforming Technology in Subarray
     子阵级的数字波束形成技术
短句来源
     Interference Rejection Means with Adaptive Digital Beam forming
     自适应数字波束形成的抗干扰新技术
短句来源
     Application Problem about Digital Beamforming Technology in Radar Engineering
     数字波束形成技术的工程应用问题
短句来源
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  digital beam forming
A design change is being introduced to substitute a digital beam forming network for the analog BFN.
      
Real-time phased array imaging using digital beam forming and autonomous channel control.
      
Transmitters using digital beam forming might need accurate control of the relative phase of a large number of DACs.
      
There has also never been, to our knowledge, any digital beam forming radar flown in space.
      
Their architecture is suitable for the whole algorithm including offset correction, FFT and digital beam forming.
      


This paper discusses the way to decide the direction of a target by using DBF technique in the environment of interference and gives the simulation results. The sum and difference beams in the monopulse technique are used in direction finding of a target. Because of the errors in the amplitude and phase existing in each receiver, the null position in the steering direction will drift and the null depth will not be ideal, thus affecting the accuracy of direction finding. This paper presents a method by which...

This paper discusses the way to decide the direction of a target by using DBF technique in the environment of interference and gives the simulation results. The sum and difference beams in the monopulse technique are used in direction finding of a target. Because of the errors in the amplitude and phase existing in each receiver, the null position in the steering direction will drift and the null depth will not be ideal, thus affecting the accuracy of direction finding. This paper presents a method by which a null can be produced in the ideal steering direction in the difference pattern to correct the null position and deepen the null depth. It can be seen that a new approach to accurate direction finding is available by using DBF technique. In addition, simulation results are given to show the effect of reject the main lobe interference on the sum and difference patterns.

本文讨论了在干扰环境中利用数字波束形成技术确定目标方向的方法,给出了计算机模拟结果。测量目标角度是基于单脉冲技术中的和差波束的方法。由于各路接收机幅相误差和算法本身的影响,差波束指向零点将产生漂移且零深不够理想,影响了测角精度。本文提出了在差波束的理想指向零点方向用正交化算法产生一零点的办法来校正零点漂移和加深零深,又不影响差方向图的其它性能,从而为用数字波束形成技术精密测角提出了一条路径。另外,本文给出了为消除主瓣干扰而对和差方向图影响的模拟结果。

This paper discusses two topics in detail for engineering application of digital beamforming technology. (1)Digital Beamforming Feed: Digital beamforming feed is an effective way to reduce equipment. The paper presents the principle and deduces the formulae about weighting in feed for getting satisfactory patterns. (2)Test and Correction about the Amplitude and Phase Errors among Channels: A method to test errors by means of the patterns is given. It can either be used in phased array of cooperation feed,or...

This paper discusses two topics in detail for engineering application of digital beamforming technology. (1)Digital Beamforming Feed: Digital beamforming feed is an effective way to reduce equipment. The paper presents the principle and deduces the formulae about weighting in feed for getting satisfactory patterns. (2)Test and Correction about the Amplitude and Phase Errors among Channels: A method to test errors by means of the patterns is given. It can either be used in phased array of cooperation feed,or space feed.

为了在工程中应用数字波束形成技术,本文深入地讨论了两个问题:(1)数字波束馈源,文中说明了数字波束馈源是减少设备的一种有效方法,给出了它的基本概念,并详细推导了为在主阵面得到需要的方向图时馈源所需的权值计算公式;(2)通道幅相误差的检测和校正,文中给法,该方法既适用于强迫馈电也适用于空间馈电的相控阵雷达。

The self-adaptive digital beam forming technology in sparse antenna subarray is discussed in this paper. Based on the analysis of the related principle of sparse antenna array,a model of the array is proposed. Aimed at three different kinds of subarray division: regular non-overlapping, regular overlapping and irregular non-overlapping subarray, the cause of producing the grating lobes is analyzed,and their characteristics are compared. Finally,two kinds of subarray division are given by the property of sparse...

The self-adaptive digital beam forming technology in sparse antenna subarray is discussed in this paper. Based on the analysis of the related principle of sparse antenna array,a model of the array is proposed. Aimed at three different kinds of subarray division: regular non-overlapping, regular overlapping and irregular non-overlapping subarray, the cause of producing the grating lobes is analyzed,and their characteristics are compared. Finally,two kinds of subarray division are given by the property of sparse antenna array: regular arranging and fixed number of antenna elements in the subarray. A large number of computer simulation results demonstrate the performance of these proposed methods.

本文首先讨论了稀布阵子阵级自适应数字波束形成技术的特点,在稀布阵特性的理论分析基础上,设计了一种稀布天线阵模型.接着针对三种天线子陈划分:规则不重叠子阵、规则重叠子阵和不规则不重叠子阵,分析了产生栅瓣现象的原因,并且比较了它们的特性.最后根据稀布阵的特点,提出了两种子阵划分方法:子阵单元规则排列法和子阵单元数一定法.计算模拟表明,其具有良好的性能.

 
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