序言我国航空物探工作,使用相位式双曲线系统无线电定位,始于1962年。该系统是由地面不同台址的三个无线电发射台发出不同频率信息,将其彼此相位差,换算成全国统一的x—y坐标值,绘出一份相当于地形图的双曲线定位图板。另外在航测飞机上安装一台无线电接收机,在空中可随时测得并记录出各地面台彼此间的相位差,从而借助于双曲线图板,来确定飞机的空中位置,即相对于地面上的航机。过去,绘制高精度的定位图板,数据全由人工计算,再行于手工成图,既费工,又费 Preface China’s aviation geophysical work, the use of phase hyperbolic system radio positioning, began in 1962. The system is issued by the three radio terrestrial stations at different frequencies different frequency information, the phase difference between them, converted into a unified x-y coordinate values, draw a map equivalent to the hyperbolic map plate . In addition, a radio receiver is installed on the aerial survey aircraft to measure and record the phase difference between the terrestrial stations at any time in the air, so as to determine the airborne position of the aircraft by means of hyperbolic plates, that is, Airline. In the past, drawing high-precision positioning board, the data are all manually calculated, and then manually into the map, both the work, and fee