自适应单脉冲天线角度估计算法研究

摘要随着导弹、火箭、人造卫星和宇航技术的发展，对跟踪雷达的跟踪速度、跟踪精度、跟踪距离和抗干扰能力都提出了越来越高的要求。雷达对无源干扰和有源干扰的抗干扰性能成为衡量现代雷达性能的重要指标。采用阵列天线技术是提高雷达抗干扰性能和生存性能的重要手段。单脉冲跟踪采用同时比较波瓣法，获取误差信号迅速，跟踪速度快、精度高，抗干扰能力强。本文的工作是围绕自适应单脉冲技术展开的。7499
首先，本论文引入阵列天线的基本概念、基本原理及数学模型。接着对自适应波束形成,单脉冲技术以及传统单脉冲测角的原理和常用方法作了介绍。之后推导了单脉冲角度估计的通用公式并引出了自适应单脉冲角度估计算法，并对单脉冲角度估计通用公式做了推广。利用Matlab对三角格点下的满阵与其随机抽取阵，具有39个阵元的稀疏随机圆阵及矩形平面阵进行了仿真，通过仿真得到了本算法的性能评估及其改进的想法。最后简单地介绍了BWDSP100的硬件及软件平台，给出了后续算法移植和实时性测试工作的流程图。
关键词自适应；自适应波束形成；单脉冲；角度估计；BWDSP100 ;
Abstract
Title Study of angle estimation algorithm for adaptive monopulse antenna
With the development of missile, statellite and aerospace, the more excellent performance is demanded on speed, accuracy and range of tracking radar. The ability of countering passive jamming and active jamming is emphasized in modern radar. It is an effective way to enhance this counter-jamming ability using array antenna. The monopulse technique uses simultaneously lobing, which have the performance of fast acquiring error signals and tracking speed, high accuracy and robust anti-jamming ability. This paper is organized around the adaptive monopulse technique to expand.
Firstly, the paper introduces the conception, theory and mathematical model of the array antenna. After that, it gives some brief introduction of adaptive beamforming, monopulse and the classical monopulse estimation by its theory and common methods. Secondly, we obtain the general monopulse formula with its promotion and it leads into the adaptive monopulse angle estimation algorithm. Using Matlab to make some simulations of the full mode with the randomly selected mode in the triangular lattice circle array, the randomly thinned circle array with 39 elements, and the selected rectangle planer array, we receive the performance assessment of this algorithm and some ideas of improvement. Last but not least, the paper simply introduces the hardware and software platform of BWDSP100.Finally,we give the flow chart of the following algorithm transplant and its testing results in real time.
Keywords Adaptive ;ABF ;Monopulse ; Angel estimation ;BWDSP100 ;
目录
中文摘要   - 1 -
ABSTRACT   - 2 -
第1章   绪论   - 1 -
1.1   论文研究的背景与意义   - 1 -
1.1.1   研究背景   - 1 -
1.1.2   研究的现实意义   - 1 -
1.2   国内外研究动态和发展趋势   - 2 -
1.3   本文的主要工作和内容安排   - 3 -
1.3.1   毕业设计的主要工作   - 3 -
1.3.2   本文的内容安排   - 3 -
第2章   自适应波束形成与单脉冲技术简介   - 4 -
2.1   阵列天线基础与相关算法准则简介   - 4 -
2.1.1   阵列天线基础   - 4 -
2.1.2   最小均方算法(LMS)   - 5 - 自适应单脉冲天线角度估计算法研究:http://www.751com.cn/tongxin/lunwen_5485.html