参考文献
[1].
冯地耘，陈立万，王悦善。自适应波束形成与高性能DSP，成都：西安南
交通大学出版社，2007 [2]. 赵永波,张守宏.存在相干干扰时的最优波束形成[J].通信学
报,2002,23(2)
[3].
王永良,丁钱军,李荣锋.自适应阵列处理[M].北京:清华大学出版
社,2009,2
[4].
王永良,陈辉,彭应宁.空间谱估计理论与算法[M].北京:清华大学出版
社,2004
[5]. [6]. [7]. [8]. [9].
马晓岩，现代雷达信号处理，国防工业出版社 曹详玉，微波技术与天线，西安：西安电子科技大学， 张尉，“二次雷达原理”，北京：国防工业出版社，~31,144~147 杨维.移动通信中的阵列天线技术[M].北京:北方交通大学出版社,2005 刘聪锋,廖桂生.双约束稳健Capon波束形成算法的分析与求解与电子技W1drowB,ManteyPE,GriffithsLJ,一2159
葛利嘉,路鸣.蜂窝通信的空分多址:概念、算法和性能.通信学
术,2011,33(3): 477-481
[10]. [11].
报.1999,20(8):52一62
[12]. 何振亚.自适应信号处理.第1版.科学出版社,2002:298一304
[13].
肖睿，智能天线自适应波束形成算法研究：[硕士学位论文].河北：华北
电力大学，2012-03
[14].
李国栋，自适应波束形成算法研究：[硕士学位论文].哈尔滨：哈尔滨工赵永波,张守宏.存在相干信号时的最优波束形成.通信学
业大学，20013-1
[15].
报.2002,23(2):113一121
[16].
贺亚鹏,李洪涛,王克让,等.基于压缩感知的高分辨DOA估计.宇航学龚耀寰编著.自适应滤波—时域自适应滤波和智能天线[M].北京电子工业赵颖.基于软件无线电的智能天线技术研究[D].哈尔滨工程大学,2004. Wang B. Adaptive array with global weighted spatial averaging [J]. 丘区永红,甘仲民.自适应数字波束形成的抗干扰新技术.电信快
报,2011,32(6): 1344-1349
[17].
出版社，2003:217-307.
[18]. [19].
Electronics Letters,
[20].
报.1999,25
致谢
此次本科毕业设计是对于我来说算是一次好好学习的机会，能够对一个以前不熟悉的知识板块加以学习并且通过这段时间学习扩展了自己知识面。
首先感谢电子科技大学通信与信息工程学院郑植副研究员给我这次机会以及对我的悉心指导和鼓励。
感谢教研室的徐春华同学为我解答很多具体的问题和分享他在研究工作中的经验。
感谢和我一起做毕业设计的胡晓同学以及王海崧同学与我一起分析和讨论平时所遇到的问题。
外文资料原文
PHASED ARRAY ANTENNA AND BEAMFORMING SUBSYTEMS IN PHASEDARRAY RADAR
Dr A. Jhansi rani
Lakshmi
Abstract: Phased array radars are essential for the future missions like
Reusable Launch Vehicle (RLV), human space mission, and space debris tracking. The capabilities of Phased Array Radar include multiple target long range tracking in skin mode, elimination of mechanical errors and instantaneous beam positioning capability. This paper presents the design of a transmitter/receiver Digital Beam former (DBF) based on the mathematical model of a far-field plane wave incident on a sensor array. Simulations of a DBF transmitter and receiver are performed to control the power pattern of a 4-element linear array. For the sensor array, two spatial filters were constructed with different pattern requirements to demonstrate the operation of the Digital Beam Forming.
Keywords: DBF, spatial filter, Schelkunoff ,PolynomialNull-Placement Method, PAA.
introduction
Phased array antennas (PAA) are known for their capability to steer the beam pattern electronically with high effectiveness, managing to get minimal silobe levels and narrow beam widths. Implementations beginning
during the 1950s depended largely on microwave circuitry components such as phase shifters, and variable amplifiers . To achieve performance specifications such as narrow beam width or considerable scanning range with high angle resolution, a large number of antenna elements were needed to construct the array. The use of these microwave components in large quantities pose numerous obstacles to good performance and complicate the maintenance process of the phased array antenna.
An alternative approach in the design of a phased array antenna is to use digital beam forming. Digital beam forming consists of the spatial filtering of a signal where the phase shifting, amplitude scaling, and adding are implemented digitally. The idea is to use a computational and programmable environment which processes a signal
in the digital domain to control the progressive phase shift between each antenna element in the array. Digital beam forming has many of the advantages a digital computational environment has over its analog counterpart. In most cases, less power is needed to perform the beam steering of the phased array antenna. Another advantage is the reduction of variations associated with time, temperature, and other environmental changes found in analog devices. The phased array antenna will still contain analog components such as Low Noise Amplifiers (LNAs) and Power Amplifiers (PA) found in the RF stages, but the number of analog components in general can be greatly reduced for large antenna arrays. Finally, an important reason which favors the use of a digital beam former on a phased array antenna is its versatility. Digital beam formers can accomplish
数字波束形成
