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Research on Aerial Target Position Tracking for IFF Interrogator Antenna
Xuehai TU
Modern Defense Technology    2026, 54 (2): 110-117.   DOI: 10.3969/j.issn.1009-086x.2026.02.010
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In response to the issues of inaccurate tracking of aerial moving targets and signal quality degradation caused by pitch, roll, and heading disturbances affecting the interrogator antenna of the identification friend or foe (IFF) system, this paper proposes and designs a dual-motor coordinated PID control method with feedforward compensation based on motion twist for target position calculation. The method calculates the target’s coordinates using azimuth, distance, and elevation angle data provided by the radar. Pitch, roll, and heading disturbance signals are embedded into the target position through motion twist transformation, with the resulting azimuth and elevation angles serving as control commands. The derivative of these commands is used as feedforward compensation to enhance system response speed. Simulation results demonstrate that this approach effectively mitigates the three types of ship attitude disturbances and enables rapid and precise tracking of aerial targets.

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