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和差波束
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  sum and difference beam
     We analyze the pattern function of DBF in subarray under the ideal condition and with channel mismatch, and give the pattern functions of sum and difference beam. We correct the reception channel mismatch by using the channel equalization method.
     通过对子阵DBF在理想条件及通道失配情况下的方向性函数分析,得出了其和差波束方向性函数特性.
短句来源
     We analyze the pattern function of DBF in subarray under the ideal condition and with channel mismatch, and give the pattern functions of sum and difference beam. We correct the reception channel mismatch by using the channel equalization method.
     本文分析了子阵DBF在理想通道条件及通道失配情况下的方向性函数,给出了其和差波束方向性函数特性。
  sum and difference channels
     Inconsistency between the sum and difference channels in the phased array radar system will affect angle measurement accuracy if the monopulse angle measurement technique is employed.
     在采用单脉冲技术对目标进行角度测量的相控阵雷达系统中,和差波束接收通道的幅相不一致性对系统的角度测量精度有较大的影响。
短句来源
  sum-difference beam
     Study and Realization of Lobe Compression Technique for a Radar with Sum-Difference Beam
     具有和差波束雷达的波瓣压缩技术研究与实现
短句来源
     And the results of them have been analyzed, from basic one to sum-difference beam measurements which are popular in phased array radar.
     从基本的方法入手,过渡到相控阵雷达常用的单脉冲和差波束法,分析了这些方法各自的测角效果;
短句来源
     The paper presents the principle of enhancing the resolution ability for the radar with sum-difference beam and the compression result by using the lobe compression technique. It also gives out the realization plan of the technique for the amplitude and sum-difference monopulse radar.
     介绍在具有和差波束的雷达中采用波瓣压缩技术提高雷达分辨能力的原理 ,以及采用该压缩技术后的压缩效果 ,最后给出该技术在幅度和差单脉冲雷达中的工程实现方案
短句来源
  “和差波束”译为未确定词的双语例句
     Performance Analysis of ΣΔSTAP Based on Measured ΣΔ-Beam Antenna Pattern
     基于实测和差波束天线方向图的ΣΔSTAP性能分析
短句来源
     Moving Target Detection for Airborne SAR Using Beam and ADPCA
     运用和差波束与ADPCA的机载SAR动目标检测
短句来源
     Secondly, it analyzes the radar antenna model. This part putts forward three simplified antenna pattern function, also it simulates the 2-D and 3-D sum-difference patterns.
     其次分析了雷达天线模型,提出了辛格函数、余弦函数和高斯函数三种简化方向图函数模型,建立了振幅和差的空间和差波束的方向图函数模型,并仿真得到了简化辛格函数的二维和三维和差波束方向图;
短句来源
     Receiving side lobe restrain was realized by compared the receiving signal extent for sum and difference beams of transponder.
     通过比较询问机和差波束接收信号幅度实现接收旁瓣抑制;
短句来源
     They are the property of sum and difference beams, the errors of the elements and channels and different pulse repeating frequency(PRF).
     这些因素包括和差波束的特性、阵元和通道的误差、不同的脉冲重复频率(PRF)。
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  sum and difference beam
In this paper, we consider a method for null synthesis in the vector sum and difference beam patterns of a monopulse array of rectangular waveguides.
      
The proposed method eliminates shifts of the primary maximum and the nulls of the sum and difference beam patterns, respectively, of a monopulse array.
      


This paper deals with the algorithms for forming adaptive nulls of the sum and difference patterns in digital beamforming,and gives an outline of the approach to getting the sum and difference simultaneously.The effects of amplitude and phase errors in the intercoupling and receiving channels on the sidelobe and the adaptive nulling are discussed.A way that eliminates the effects of amplitude and phase errors is presented.It is proved that the weighting and the LMS algorithm can not be interchanged.

本文给出了数字波束技术中和差波束自适应形成零点的算法,提出了同时得到和差波束自适应零点的一种设想。讨论了各路幅相误差对方向图副瓣及自适应零点的影响,提出了消除幅相误差影响的办法。指出了加权和LMS算法的不可互换性。

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。

A novel space time adaptive monopulse direction finding technique is proposed in this paper for airbrone phased array radar,which exhibits high accuracy performance and is robust when random array element errors(gain and phase) and channel mismatch errors exits. A robust gain normalization method for adaptive sum and difference beams is also given, together with the simplified compatible realization schemes for the above method. Finally, some results based on high fidelity simulated radar clutter data are...

A novel space time adaptive monopulse direction finding technique is proposed in this paper for airbrone phased array radar,which exhibits high accuracy performance and is robust when random array element errors(gain and phase) and channel mismatch errors exits. A robust gain normalization method for adaptive sum and difference beams is also given, together with the simplified compatible realization schemes for the above method. Finally, some results based on high fidelity simulated radar clutter data are provided for illustration.

针对机载相控阵雷达系统提出了一种空时二维自适应单脉冲测角方法 ,当存在阵元和通道幅相误差时它仍具有较高的测角精度。还给出了一种稳健的自适应和、差波束增益归一化方法 ,并讨论了所提方法的简化兼容实现方案。最后给出了基于高保真雷达杂波模拟数据的仿真实验结果

 
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