【作者】 杨兴耀；

【导师】 张辉；

【作者基本信息】 西安电子科技大学 ， 通信与信息系统， 2010， 硕士

【摘要】 本文介绍了民用航空飞行中精密进近和着陆的分类及其所要达到的精度要求,介绍了仪表着陆系统(ILS)和伏尔导航系统(VOR)在精密进近和着陆中的应用及其性能。文章针对仪表着陆与伏尔导航接收机的不同模式进行结构与性能上的分析,采用现在流行的FPGA和DSP等先进数字信号处理技术。文章提出了不同模式下接收机的硬件实现方案,包括仪表着陆及伏尔导航系统两种工作模式的基本工作原理和相应的方案论证,以及处理过程中的一系列适合FPGA实现的新算法、新思路。文章重点研究了伏尔导航接收机的实现,包括30Hz可变相与基准相的相位比较技术,以及IIR滤波器和自适应滤波器的性能分析及其FPGA的巧妙实现。最后,文章给出了仪表着落系统与伏尔导航接收机的系统仿真图,实测数据,硬件图和实测图及各项性能指标。根据仿真和测试结果可以看出,仪表着陆系统和伏尔导航接收机的实测结果与理论分析相一致,设计精度达到系统性能指标要求。更多还原

【Abstract】 This paper gives an introduction of the precision approach of the civil aviation flight, the classifications of landing and the accuracy requirements to be achieved, and an introduction of the instrumental landing system (ILS) and the performance and application of the Vulcan navigation systems (VOR) controlled by the precision approach in the process of landing .This paper analyzes the structure and performance of the instrumental landing and the VOR navigation receivers of different models. The current popular FPGA and DSP, and other advanced digital signal information are used to deal with technical problems. This paper puts forward implementation solutions for the receiver hardware in different modes, including the basic working principles of the two kinds of working patterns: the Instrumental Landing System, and the VOR Navigation System; the corresponding solutions’proof, as well as a series of new algorithms and new ideas which are suitable for FPGA implementation process.This paper mainly studies the implementation of VOR navigation receiver, including the phase comparison techniques of the 30Hz variable phase and the Bezugsphase, and the performance analysis of IIR filer and adaptive filter and the FPGA clever implementation.Finally, this paper presents a System Simulation Diagram, the measured data, the diagrams of the hardwares, and the test diagram, as well as their performance indicators for the Instrumental Landing System and the VOR Navigation System. According to the simulation and test results, we can see: the experimental results of the instrumental landing system and VOR navigation receiver are consistent with the theoretical analysis, and the design accuracy meets the system performance requirements.更多还原