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Polarization-Modulation Methods for Determining the Roll and Bearing Angles of an Aircraft using a Rotating Quarter-Wave Phase Plate
Russian Physics Journal ( IF 0.6 ) Pub Date : 2021-07-19 , DOI: 10.1007/s11182-021-02351-0
V. L. Gulko 1 , A. A. Mescheryakov 1
Affiliation  

A polarization-modulation method for simultaneous determination of the navigation bearing and roll parameters of an aircraft from orthogonally linearly polarized beacon signals is studied. Signals are emitted simultaneously from two spatially separated points in the horizontal plane with known coordinates. Onboard the aircraft, the resulting vector signals are received by an onboard receiving antenna, in the path of which a polarizing modulator is inserted. A rotating section of a circular waveguide with a quarter-wave phase plate embedded inside is used as a polarizing modulator. The bearing and roll of the aircraft are estimated at the output of a single-channel receiver from amplitudes and phases of the second and fourth harmonics of the polarization modulation frequency, respectively, contained in the envelope spectrum of the received resultant vector signals.



中文翻译:

使用旋转四分之一波相位板确定飞机滚转角和轴承角的偏振调制方法

研究了一种从正交线性极化信标信号中同时确定飞机导航方位和滚转参数的极化调制方法。信号从水平平面中具有已知坐标的两个空间分离点同时发射。在飞机上,产生的矢量信号由机载接收天线接收,在其路径中插入极化调制器。内部嵌入四分之一波相位板的圆形波导的旋转部分用作偏振调制器。飞机的方位和滚转分别在单通道接收机的输出端根据极化调制频率的二次和四次谐波的幅度和相位进行估计,

更新日期:2021-07-19
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