机载天线动态变形实时测量与补偿方法

Real-time Measurement and Compensation of Dynamic Deformation of Airborne Antenna

针对高精度机载天线结构变形对电性能的影响,提出了天线动态变形实时测量并补偿的方法。针对该机载天线的高角度、实时、测量空间狭小的测量要求和难点,提出了采用基于光纤光栅传感器进行应变测量的方法,同时对该测量方法的原理、搭建过程进行了说明,并通过测试试验对其进行了验证,试验结果表明:该测量方法能实时获得机载天线由于风载、温度等造成的结构动态变形,并且可以在此基础上进行该天线的电性能畸变的实时补偿。

Aiming at the influence of high-precision airborne antenna structure deformation on electrical performance, the paper proposes a method for real-time measurement and compensation of antenna dynamic deformation. Base on the high angle, real-time and narrow measurement space requirements and difficulties of the airborne antenna, the paper proposes a method based on fiber grating sensor for strain measurement. At the same time, the principle and construction process of the measurement method are explained and tested. The test results show that the measurement method can obtain the dynamic deformation of the airborne antenna due to wind load and temperature in real time, and the real-time compensation of the electrical performance distortion of the antenna can be performed on this basis.