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全向信标(VOR)是一种为飞机提供方位信息的导航设备,它的基本工作原理是产生两个30HZ的信号,一个是基准相位信号,另一个是可变相位信号。通过在飞机接收机中比较这两个信号的相位后,得到的相位差即为飞机相对磁北的方位。影响VOR信号准确性的因素有很多,但归纳起来有两个方面,一个为VOR设备本身的精度,另一个为VOR台站周围的电磁环境。对VOR信号的影响表现为①航道的粗
An omnidirectional beacon (VOR) is a navigation device that provides orientation information to an aircraft. The basic principle of operation is to generate two 30HZ signals, one for the reference phase signal and the other for the variable phase signal. By comparing the phase of these two signals in the aircraft receiver, the resulting phase difference is the azimuth of the relative magnetic north of the aircraft. There are many factors that affect the accuracy of a VOR signal, but there are two aspects to summarize. One is the precision of the VOR device itself and the other is the electromagnetic environment around the VOR station. The impact on the VOR signal is manifested as ① rough channel