雷达通信中有源相控阵天线的优化和校准

发布时间：2021-08-12 19:59

　　移动卫星通信终端在海事、航空和陆地移动应用的商业市场中快速增长。近年来,随着无线通信对小型天线需求的增加,引起了微波和射频工程师对微带贴片天线研究的广泛发展,以改善增益、高数据速率通信,并补偿某些阵元上的传播损耗、旁瓣损耗、栅瓣和阻塞。因此,对能够跟踪卫星并可应用于无线和雷达通信系统的轻质、低成本、易于制造、低剖面和可操纵的天线的需求显著增加。由于在EM驱动的设计中所经历的挑战,已经开发出了各种方法来减少在提高传统的数值优化技术的效率中的高成本,以使昂贵的计算模型得到更廉价和更快速的表示。此外,有源相控阵系统的校准受到温度变化、移相器、阵列中的大量元素、互耦和功分器的影响。为了实现有源相控阵天线在某一特定方向上的高增益,在对沿波束方向的信号进行功率汇总测量时,精确控制每个阵元的相位、幅度和辐射方向图是非常重要的。本文采用腔体模型作为粗模型,应用响应剩余空间映射（RRSM）技术,利用MATLAB对一个矩形贴片天线进行优化设计。此外,有源相控阵系统中的改进的校准和优化技术将天线波束转向期望的方向。本文提出的方法和相应的结果如下:（1）在MATLAB 2019b环境下,采用腔体模型作为粗模型... 

【文章来源】：中国科学技术大学安徽省 211工程院校 985工程院校

【文章页数】：117 页

【学位级别】：博士

【文章目录】：
摘要
ABSTRACT
List of acronyms
Chapter 1 Introduction
    1.1 Background and Overview
        1.1.1 Numerical Optimization Techniques For Antenna Design
        1.1.2 Active Phased Array Antenna (APAA) Calibration
    1.2 Motivation of the Dissertation
    1.3 Objectives
    1.4 Innovation
    1.5 Organization of the Dissertation
    1.6 Chapter Summary
Chapter 2 Response Residual Space Mapping Optimization Techniques for aPatch Antenna
    2.1 Chapter Introduction
    2.2 Response Residual Space Mapping (RRSM)
        2.2.1 Application of RRSM for Design
        2.2.2 Rectangular Patch Antenna Design
        2.2.3 The Selection of Optimal Targets and Parameter
    2.3 Results and Discussions
    2.4 Chapter Summary
Chapter 3 Single Element Octagonal Phase Setting Calibration Algorithm
    3.1 Chapter Introduction
    3.2 Single Element Calibration Technique
        3.2.1 Single Element Calibration Technique
        3.2.2 Amplitude and Phase Error Estimate
    3.3 Results and Discussions
    3.4 Chapter Summary
Chapter 4 Multiple Element Octagonal Phase Setting Calibration Algorithm
    4.1 Chapter Introduction
    4.2 Multiple Elements Calibration Technique
        4.2.1 Multiple Elements Calibration Algorithm
        4.2.2 Amplitude and Phase Error Assessment
    4.3 Results and Discussions
    4.4 Chapter Summary
Chapter 5 Euler's Multiple Elements Calibration Algorithm
    5.1 Chapter Introduction
    5.2 Theory
        5.2.1 Calibration Method
        5.2.2 The Phase Shifters Error Model
    5.3 Results and Discussions
        5.3.1 Euler's Active Phased Array Antenna Calibration
        5.3.2 Discussions
    5.4 Chapter Summary
Chapter 6 A Compressed Sensing Approach for Antenna Array Calibration
    6.1 Chapter Introduction
    6.2 Compressive Sensing Approach for calibration
        6.2.1 Method Description
        6.2.2 Fault Detection and Calibration Technique at the Receiving End
    6.3 Description of the Method
        6.3.1 Antenna Array Fault Detection and Calibration
    6.4 Experimental Example
        6.4.1 Step 1: 2x2 Antenna Array Elements Under Test
        6.4.2 Step 2: Power Divider
        6.4.3 Step 3: Active Element
    6.5 Results and Discussions
    6.6 Chapter Summary
Chapter 7 Conclusions and Future Research
    7.1 Summary of Contributions
    7.2 Future Work
REFERENCES
LIST of PUBLICATIONS
ACKNOWLEDGEMENTS



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