With argumentation system and differential system , gnss is capable of supporting en route flight and cat iii precision approach . this system can meet the need of all flight phases in terms of integrity , precision and continuity . with the application of area navigation and required navigation performance ( rnp ) , this would make the parallel route , random route and direct flight route possible , and also improves the efficiency of air space and the flight safety 在导航系统中，全球卫星导航系统是其主要成分，通过增强系统和差分技术， gnss具有支持从航路飞行到类精密进近的能力，在完好性、精度、可用性、连续性上都可以满足飞行各阶段的要求；随着区域导航和所需导航性能的实施，平行航路、随机航路和起点和终点之间的大圆航线直飞得以实现，提高了空域利用率和飞行安全。
Spread spectrum code emitted by navigation station has correlative operation with the signal produced by receiver , through measuring the place of maximal correlative function , we can measure the spreading time of the navigation station ’ s signal , so we can measure the distance between navigation station and receiver 区域导航利用导航台发射的扩频码与接收机产生的本地信号进行相关运算,通过测量相关函数最大值的位置,来测定导航台信号传播时间,从而测定导航台到接收机的距离。
Such research can lead to a new flight procedure design methodology , which copes with these problems and makes strong economical senses . under the guidance of aviation safety , efficiency , regularity and economy , this thesis applies the principle of the instrument flight procedure , firstly , to research the current vor / dme instrument flight procedure , namely the vor / dme instrument flight procedure ( vor / dmf . ifp ) , its holding procedures , departure routes , arrival routes , and approach procedures , cor the terminal airspace 本文在安全、效率、正常和经济的原则下，运用仪表飞行程序设计的思想和原则，首先对在vor / dme导航台上建立仪表进场航线、等待程序、仪表进近程序和仪表离场航线等机场空域内的飞行程序的设计方法进行了研究，总结出不同位置的vor / dme仪表飞行程序的布局形式、适用情况及其优缺点，并首次提出了以vor / dme为基准的封闭圆弧进近程序；其次，研究了基于vor / dme导航台的区域导航飞行程序的设计方法；最后，研究了在现有的vor / dme仪表飞行程序上建立区域导航飞行程序的设计方法。
