机载多普勒变化率的相差检测

在现有相差检测机载平台相对角速度的基础上,进一步给出了通过相差检测获得机载多普勒变化率的方法。和基于数字接收机信号处理的获取方法不同,基于短基线相差测量的多普勒变化率检测方法的最大特点是多普勒变化率可以被实时获取,且只要基线足够长,就能将检测多普勒变化率的测量误差控制在几赫兹之内。

Doppler Rate Detection by Measuring Phase-difference on Airborne Platform

On the available basis of the relative angular velocity obtained by measuring phase difference on airborne platform, this paper presents a method obtaining Doppler rate by measuring phase difference. In contrast to the method based on digital signal receiver the maximal characteristic of Doppler rate detected by measuring phase difference based on short baseline array is that Doppler rate can be in time obtained. Also, as long as the baseline is long enough, the measuring error detecting Doppler rate can be controlled within a few hertz.