测向定位算法研究及测向定位系统软件设计

发布时间：2018-01-10 20:15

本文关键词：测向定位算法研究及测向定位系统软件设计　出处：《电子科技大学》2014年硕士论文　论文类型：学位论文

【摘要】：现有的方向角定位技术在测向算法的实现上有待提高,尽管一些高分辨力测向算法已经提出,但往往由于算法太过复杂而无法在硬件设备上实现。方向角定位的精度对测向误差非常敏感,现有的定位算法很难满足定位精度的需求,为实现高精度定位,需要综合考虑测向准确度、测向站布局、地理环境等各种因素。另外,现有的测向定位软件无法直接用于教研室的测向设备,并且在功能上又有许多地方需要改进。本文的研究目的归结为三个方面:一是研究如何将高精度的测向算法应用到定位软件上,二是探究如何改进现有的定位算法以实现对目标更为精确地定位;三是对测向定位系统软件进行设计和完善。测向算法方面侧重研究具有超高分辨力空间谱估计测向算法,本文在对空间谱估计的典型算法MUSIC算法的实现原理和性能进行分析的基础上,提出了不进行特征分解而实现测向的方法,从而降低了算法在软件上实现的难度。定位算法研究方面,本文先是对影响定位的精度因素进行了分析,分析内容包括定位模糊区、最大位置误差、几何稀释度等,接下来又对多站定位的修正算法展开研究,在分析几种常见的多站定位修正算法的基础上,提出了球面坐标系下最小二乘法的修正方法,最后,研究了三维定位的实现方法,并对三维定位的性能进行了分析系统软件设计方面主要进行了两个方面的工作:一是软件的总体设计,二是功能的完善。具体地,软件总体设计的内容包括:需求分析、组织结构设计、线程设置,功能的完善包括:频谱和电平流显示控件的封装、GIS的功能扩展、车载设备定位功能的设计。
[Abstract]:The direction angle positioning technology needs to be improved in the realization of direction finding algorithm, although some high resolution direction finding algorithm has been proposed, but often because the algorithm is too complex to be implemented in hardware equipment. The direction angle of the positioning accuracy is very sensitive to errors, existing localization algorithm is difficult to meet the demand for precision positioning. To achieve high precision positioning, need to consider the direction finding accuracy of direction finding station layout, various factors such as geographical environment. In addition, the existing positioning software cannot be used for direction finding equipment department directly, and in function and there are many places need to be improved. The purpose of this study is divided into three aspects: one is to study how to high precision direction finding algorithm is applied to the localization of software, the two is to explore how to improve the existing localization algorithms in order to achieve the target more accurately positioning; three is the direction finding system The software is designed and perfected. Focus on research direction finding algorithm with ultra high resolution spatial spectrum estimation algorithm, this paper analyzed the principle and performance of typical MUSIC algorithm of spatial spectrum estimation on the proposed method to realize measurement and characteristic decomposition, which reduces the algorithm implemented in software the difficulty of the research. The first is the precision positioning algorithm, influence factors on positioning are analyzed, including analysis of location fuzzy region, the maximum position error, the geometric dilution, the correction algorithm of multi station positioning research, based on the analysis of several common algorithm on multi station positioning and proposes the correction method, least squares method in spherical coordinates. Finally, implementation method of the 3D positioning, and the performance of three-dimensional positioning are analyzed system software design The surface includes two aspects: one is the work of the overall design of the software, two is the perfect function. Specifically, the overall design of the software includes: requirement analysis, structure design, function perfect thread settings, including: the spectrum and flow level display control encapsulation, GIS function expansion, design vehicle positioning device function.

【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN95

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