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array aperture
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  阵列孔径
     The equivalent array aperture of the method is (m + 1)2/2 - 1 (when m is odd) or m(m + 2)/2 - 1 (when m is even) with m-sensors.
     当采用m阵元的2-D阵列时,扩展阵列的等效阵列孔径为n=(m+1)~2/2-1(m为奇数)或n=m(m+2)/2—1(m为偶数)。
短句来源
     The equivalent array aperture of the algorithm is 2N -1 with M-sensor MRLA (N>M).
     当采用M阵元最小冗余线阵时,该算法的等效阵列孔径为2N-1(N>M)。
短句来源
     It is proved herein that the effective array aperture is 2N-1(N>M) when M-element MRLA is adopted.
     当采用M 阵元最小冗余线阵时,该算法的等效阵列孔径为2N- 1(N> M) 。
短句来源
     Due to restriction with the array aperture transition time, traditional phased array radar works under relative narrow signal bandwidth, so this restricts the application of phased array radar in the field where high performance is demanded.
     传统相控阵雷达虽然具有众多的技术和战术性能优势,但是由于受到阵列孔径渡越时间的限制,只能在相对窄的信号带宽下工作,从而限制了相控阵雷达在高技术、高性能要求领域的应用。
短句来源
     Methods of wideband DOA estimation based on high order cumulant are studied in Charter 4. Measures of array aperture extension and noise suppression have been investigated, especially on non-Gaussian noise.
     研究了宽带条件下阵列孔径扩展的实现方法和噪声抑制方法,特别是关于非高斯噪声的抑制。
短句来源
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  “array aperture”译为未确定词的双语例句
     Because the method extends array aperture, it enhances estimation performance of the algorithm.
     该方法扩展了阵列的孔径,提高了算法的估计性能。
短句来源
     Analysis of Focal Field and Crosstalk Simulation of Array Aperture for Array Waveguide Grating Multi/Demultiplexer
     阵列波导光栅复用/解复用器焦场的分析及光栅孔径对器件串扰影响的数值分析
短句来源
     Array aperture is an important design parameter of the phased\|array waveguide grating multi/demultiplexer.
     阵列波导光栅复用 /解复用器中波导光栅孔径是器件重要的结构参数 .
短句来源
     The forth-order cumulant-based DoA methods can be used on suppressing gaussian noises and extending array aperture.
     本文分析了基于四阶累积量的测向方法不能正确测量多径信号方向的原因,提出了一种多径环境下的基于四阶累积量的新型测向方法。
短句来源
     In this method, the first step is to obtain the distribution of both the amplitude and the phase along the array aperture produced by the returned echoes.
     首先要测出阵列口径面上由回波信号产生的幅度和相位分布。
短句来源
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  相似匹配句对
     Characteristics of Aperture-Array Diffraction and Its Application
     小孔阵列衍射特性与应用
短句来源
     Study on the realization of the semi-aperture antenna array
     半孔径天线阵的可实现性理论研究
短句来源
     On the Norm of Array
     关于立体阵的范数
短句来源
     The Mierolen Array
     微透镜阵列
短句来源
     Aperture Couplings of Waveguide
     波导管孔隙耦合
短句来源
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  array aperture
Our tests also demonstrate that flexibility in choices of different types of seismic phases is important, because any single phase has trade-offs in issues such as spatial resolution, array aperture, and amplitude of signals.
      
Upper limit on the value of array aperture for actual improvement of all the expected signals are found.
      
Herein, we propose to solve the aforementioned problem using time-frequency signal representations and the spatial array aperture.
      
The first method employs spatial interpolation of the array aperture, followed by spatial smoothing in order to decorrelate the desired signal and the interference.
      
The possibility to determine the dispersion curve over the adequate frequency range at one site depends on the array aperture and on the wavefield spectra amplitude that can be altered by filtering effects due to the ground structure.
      
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In this paper, we propose a new adaptive beamformer which is able to work well even when the desired signal and the jammings are coherent. Compared with the spatial smoothing method, the newly proposed destroying coherence algorithm can be applied in conjunction with any adaptive algorithms and structure. The new methed can obtain the same array aperture as the modified spatial smoothing method.

本文提出了一种能在希望信号和干扰为相干时仍正常工作的自适应波束形成器,与空间平滑法相比,本文提出的去相关算法可以与任何一种自适应算法和结构相联接,而得到的有效口径与修正空间平滑法相同。

In this paper, a new array processing method based on a new array geometry and a spatial filter is presented. The array aperture can be increased by the array geometry. To avoid spatial frequency aliasing, spatial filtering is applied to the new array geometry as preprocessing. Also the effective signal-to-noise ratio (SNR) can be raised by the spatial filtering. Simulation results have shown much better performance achieved by using the method than that obtained by using previous methods.

为了改进分辨力,本文提出了一种新的阵处理方法,此法基于一种新的阵几何与空间滤波器,这种阵几何有效地增加了阵孔径,为了避免空间频率的混叠,空间滤波器能提高有效信噪比(SNR)。模拟结果表明本文方法较之现有谱估计方法有明显改进。

In this paper, a new method of realizing radar cross-range resolution by array phase weighting-isproposed. In this method, the first step is to obtain the distribution of both the amplitude and the phase along the array aperture produced by the returned echoes. This procedure is carried out through weighting the phases of channels. in the next step. the cross-range resolution is obtained from the data acquired in the first step. This method is valid, no matter the objects are located in the far-field region...

In this paper, a new method of realizing radar cross-range resolution by array phase weighting-isproposed. In this method, the first step is to obtain the distribution of both the amplitude and the phase along the array aperture produced by the returned echoes. This procedure is carried out through weighting the phases of channels. in the next step. the cross-range resolution is obtained from the data acquired in the first step. This method is valid, no matter the objects are located in the far-field region or near-field region.

本文提出一种通过阵列相位加权实现雷达横向距离分辨的新方法。首先要测出阵列口径面上由回波信号产生的幅度和相位分布。这一过程是通过对各接收通道相位进行加权而实现的。接下来,由已取得的数据即可获得横向距离分辨率。理论分析表明,无论目标位于远场区还是近场区,本方法都是适用的

 
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