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4MULTI-DIMENSIONAL SIGNAL PROCESSING AND CIRCUITS FOR ADVANCED ELECTRONICALLY SCANNED ANTENNA ARRAYS

2016-08-23 11:38 429 查看


LIST OF FIGURES

FIGUREPage
1.1 Depiction of different application areas of aperture arrays and MD  space-time array signal processing: (a) AESA technology

 based on aperture array beamforming in surveillance applications and air-borne detection and tracking applications; (b) Aperture

array based radar; (c) Application in radio astronomy instrumentation. The image shows dense aperture array receivers with

thousands of antennas in the SKA project; and (d) Wireless communication applications including cognitive radio to achieve

EARS

(对孔径阵列和MD时空阵列信号处理不同应用领域的描述：（a）基于监视应用和空气负荷检测和跟踪应用中孔径阵列波束形成的

主动电子扫描阵列；（b）孔径阵列雷达；（C）在射电天文仪器中的应用。利用ＳＫＡ项目里上千数目的天线　图像显示密集的

孔径阵列接收机；（d）无线通信应用，包括增强访问无线电频谱的认知无线电实现)		4
2.1 (a) Reception of a propagating far-field EM plane-wave using a planar array of antennas. (b) The region of support of the frequency

spectrum of the plane-wave signal in 3-D spatio-temporal frequency domain.

（a）使用平面天线阵 接收 电磁波平面波的远场传播（b）三维时空频域中 平面波信号频谱的支持区域。		62
2.2 Beamforming in a MD fi ltering perspective. A 3-D (a) beam-shaped and (b) cone-shaped fi lter passband which effectively encompass the plane-wave spectra with desired DOA

（三维（a）波束赋形和（b）锥形滤波器 期望波达方向 有效 ？覆盖/包含？ 平面波光谱的通带）

64
2.3 Realizations of Conventional beamforming algorithms: (a) true-time delay-and-sum; (b) phased array; and (c) filter-and-sum

（传统波束形成算法实现：(a)真时间 延迟求和  （b）相控阵 （c）滤波器 求和）		65
2.4 (a) Conventional 1-D passive prototype network. (b) 2-D RBN with two inductors and a resistor showing the line-shaped 2-D resonant region. (c) Example 2-D magnitude frequency response.(（a）传统一维无源网络原型  （b）二维两电感单电阻
Ramamoorthy-Bruton网络 呈 线形 二维共振区 （c）二维辐频响应实例)		69   
2.5 MD plane-wave filter synthesis process.（多维平面波滤波器合成处理）88
2.6 (a) Overview of a 2-D IIR beam plane-wave filter based beamforming system. The 2-D magnitude frequency response and the 

line-shaped resonant regions of (b) ideal H (j!x; j!ct), (c) DSDT version HD (ej!x; ej!ct) and (d) DSCT version HA (ej!x; j!ct).

（（a）二维IIR波束平面波滤波器 波束形成系统 概述    (b)理想磁场 的 二维辐频响应和线型共振区域）

96
2.7 Array factor of the ideal, DSDT（discrete-space discrete-time） and DSCT（discrete-space continuous-time） realizations of the first order 2-D IIR beam filter computed at the normalized temporal frequency !ct0 = 0:4 for two design DOAs (a)  0 = 20◦ and (b)0
= 50◦.（理想阵列因子，一阶二维IIR波束滤波器 离散空间离散时间和离散空间连续时间实现   的归一化时间频率 一阶IIR滤波器的二维梁计算归一化频率的实现！CT0 = 0:4两设计DOAs（一）0 = 20◦和（b）0 = 50◦）		128
2.8 Array factor of the DSDT and DSCT realizations computed at normalized temporal frequency !ct0 = 0:4 using the pre-warped

 DOAs given by (2.20) and (2.21), respectively for design DOA (a)  0 = 20◦and (c)  0 = 50◦. (b), (d) resulting beam pointing errors as a

 func-tion of temporal frequency !ct0.（归一化时频 离散空间离散时间实现 阵列因子）		129  
  
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