雷达低空目标俯仰角偏轴测量的C2算法研究

由于多径信号的干扰,单脉冲比幅测角体制的雷达在对低空目标俯仰角测量时,会带来很大的偏差。应用多目标分辨算法(C2算法),对其在某相控阵雷达系统中低空目标俯仰角偏轴跟踪测量性能进行了分析和仿真,为雷达系统的设计提供依据。通过对不同场景下的仿真结果分析,表明该算法具有比较优良的抗多径干扰性能,可以提高俯仰角的测量精度,该算法运算比较简单,适宜应用于单脉冲比幅测角体制雷达低空目标俯仰角的实时跟踪测量。

C2 Algorithm Research in Low-Altitude Target Elevation Off-Axis Measurement

Tracking a low-altitude target in elevation is difficult when both direct and reflected radar returns originate main beam of the measurement radar. In such condition, a conventional monopulse radar is subjected to increased angle noise and bias error in elevation. By means of the analysis based on the model of multipath reflection environment, the traditional multi-target discrimination algorithm (C2) was adopted to estimate the elevation of the low-altitude target and use in a phased control radar system. Throughout the simulation in some scenarios, the results show that this method is effective and feasible for off-axis tracking and measurement the target in low-altitude and multipath environment.